CN107656247A - Three-dimensional surveillance radar Target dots processing method based on AESA technical system - Google Patents
Three-dimensional surveillance radar Target dots processing method based on AESA technical system Download PDFInfo
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- CN107656247A CN107656247A CN201710736619.2A CN201710736619A CN107656247A CN 107656247 A CN107656247 A CN 107656247A CN 201710736619 A CN201710736619 A CN 201710736619A CN 107656247 A CN107656247 A CN 107656247A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/295—Means for transforming co-ordinates or for evaluating data, e.g. using computers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
- G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
- G01S7/2927—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by deriving and controlling a threshold value
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S2013/0236—Special technical features
- G01S2013/0245—Radar with phased array antenna
- G01S2013/0254—Active array antenna
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- Radar, Positioning & Navigation (AREA)
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- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention belongs to radar plot processing technology field, more particularly to a kind of three-dimensional surveillance radar Target dots processing method based on AESA technical system.The present invention is handled by initial echo, Plot coherence is handled, three coordinate points mark data are condensed by point mark filtering process, filtering optimization processing, and the result after Target dots processing is presented to user by terminal display monitoring system, so as to improve monitoring management ability of the administrative department to low altitude small target.The initial echo processing of the present invention and the process of Plot coherence are spontaneous, reduce influence of the artificial factor to final three-dimensional surveillance radar Plot coherence result to greatest extent, the place Optimal Parameters of terminal display monitoring system feedback and enabled control, the quality of a mark can further be optimized, processing is filtered to the point mark after cohesion.The present invention realizes the output of the distance to low target, orientation, elevation information, and foundation is provided to low, slow, Small object identification, monitoring for traffic control department.
Description
Technical field
The invention belongs to radar plot processing technology field, it is more particularly to a kind of based on AESA technical system three
Coordinate surveillance radar Target dots processing method.
Background technology
Phased-array radar is one of current state-of-the-art radar system, and phased-array radar is the mode control radar ripple of electricity consumption
Shu Zhixiang changes are scanned, and are obtained the most rationally adaptive utilization of the time, energy resource of radar, are completed with the shorter time
The search mission of alert airspace.Phased-array radar is divided into AESA and the class of inactive phased array two, Connectors for Active Phased Array Radar
Emittance produces on antenna array, and without high-power transmitter, feeder network is succinct, reduces the transceiver channel damage of complexity
Consumption, by electromagnetic wave space optics coherence tomography directional beam, improve the efficiency of radar system.
The major advantage of Connectors for Active Phased Array Radar is as follows：1) the radio-frequency receiving-transmitting loss of feeder system substantially reduces；2) power
It is to be synthesized by separate unit spatial coherence, antenna radiation efficiency is high；3) the resistance to power requirement of feeder system is low, simplifies design；4) spoke
Unit autonomous working is penetrated, reliability is high；5) big quantity, distributed product form, are advantageous to standardization and modularized production；6)
It is advantageously implemented total digitalization and adaptive work.
As the demand of strategic point defence increases, the monitoring for failing to understand low latitude aircraft is realized, ensures Civil Aviation Airport, security protection city
The demand of the safety guard department monitoring of the important place such as field and land and sea border defense, anti-smuggling, is opened progressively in particular with low latitude
Promote, low flyer will explosive growth, in order to prevent some noncooperative targets and risk object by mistake swarm into will area
Domain or approach area are, it is necessary to which surveillance radar can accurately monitor low, the slow, Small object in low clearance area, display, output flight mesh
Target distance, orientation, elevation information, form the three-dimensional motion situation of low target, the automatic alarm in the case of unattended,
And low-altitude surveillance information transmission can be focused on, shown and forwarded to intelligence channel by radar system networking, counterweight
Noncooperative target and risk object carry out monitoring defence around point region.
Because computing technique is difficult to meet to require in existing three-dimensional surveillance radar Target dots processing method, lead to not essence
Really low, the slow, Small object in monitoring low clearance area.
The content of the invention
The present invention in order to overcome the above-mentioned deficiencies of the prior art, there is provided it is a kind of based on AESA technical system three
Coordinate surveillance radar Target dots processing method, the present invention realize the output of the distance to low target, orientation, elevation information, are
Traffic control department provides foundation to low, slow, Small object identification, monitoring.
To achieve the above object, present invention employs following technical measures：
A kind of three-dimensional surveillance radar Target dots processing method based on AESA technical system, comprises the following steps：
S1, the point mark data for crossing by network inputs thresholding；
S2, the point mark data progress channel choosing for crossing thresholding is handled greatly, at unruly-value rejecting processing acquisition initial echo
Point mark data after reason；
S3, to initial echo processing after point mark data carry out successively apart from upper agglomeration process, at upper resolution
Reason and difference beam vertical beam survey high disposal, agglomeration process, the resolution processing in orientation in orientation, and mark is put after being handled
Condense data；
S4, the place Optimal Parameters using terminal display monitoring system feedback and enabled control, to Plot coherence after processing
Data carry out the processing of Track In Track ripple door, noise spot mark suppression processing successively, fixed clutter suppression is handled, point mark thresholding suppresses
Point mark filtering process obtains result data；
S5, result data is sent to terminal display monitoring system by network it is presented to user.
Preferably, the place Optimal Parameters include Track In Track ripple door processing parameter, noise spot mark suppresses processing parameter,
Fixed clutter suppresses processing parameter, point mark thresholding suppresses parameter.
Preferably, step S2 concrete operation step includes：
The point mark data for crossing thresholding are carried out with the big processing of channel choosing, selects the point mark data after big processing to carry out channel
Storage processing is standardized, the point mark data after standardization storage processing are set with the clutter frequency threshold of unruly-value rejecting, Ji Jiangbiao
Target Doppler frequency is less than the point mark data of the clutter frequency threshold of unruly-value rejecting in point mark data after standardization storage processing
Filtered out as clutter point mark data, so as to obtain the point mark data after initial echo processing.
Preferably, step S3 concrete operation step includes：
S31, apart from upper agglomeration process：Point mark data after initial echo processing are carried out with a mark data apart from upper solidifying
It is poly-, mark data are put after obtaining distance cohesion, mark data are put after the distance cohesion includes mesh after the timestamp of target, distance cohesion
Target distance, distance cohesion after target orientation, distance cohesion after target and channel amplitude value, distance cohesion after target difference
The Doppler frequency information of target after channel amplitude value, distance cohesion, target terminate list apart from start element, the distance of target
Member, the starting of the distance of target and distance terminate in each range cell target range value；
S32, apart from upper resolution handle：Point mark data after condensing of adjusting the distance carry out target physical length and judged in advance, set
Target length preset value, if target physical length is more than target length preset value, successively travel through target distance starting and
The range value of distance target in each range cell in terminating, obtain the maximum range cell of the range value of target, the width of target
The minimum range cell of the range value of the big range cell of angle value time and target, mark data are put after distance cohesion with the width of target
The minimum range cell of angle value is boundary, and mark data are put after obtaining Range resolution processing；
S33 and difference beam vertical beam survey high disposal：Range resolution processing is calculated using with difference beam angle measuring algorithm
The angle information of point mark data, elevation information, range cell information, azimuth information, the target point number for condensing data afterwards；
S34, the agglomeration process in orientation：According to difference beam vertical beam survey high disposal after put mark data in range cell
Information, elevation information, azimuth information, same distance unit, identical height, the point mark data of different azimuth are searched, are obtained same
Targets Dots data broadening data in the azimuth direction, then to broadening data on azimuth direction according to and channel amplitude value select
Greatly, the point mark data after orientation cohesion are obtained；
S35, resolution is handled in orientation：The direction that point mark data after orientation is condensed scan according to radar antenna is carried out
Target bearing developed width judges in advance, wherein, the distance that the target bearing developed width is equal to target terminates orientation and subtracts mesh
Target adds 1 apart from Initial Azimuth, target bearing width preset value is set, if target bearing developed width is more than target bearing
Width preset value, then target adds target bearing width preset value apart from Initial Azimuth in the point mark data after orientation is condensed
Differentiated, so as to Plot coherence data after being handled.
Further, step S4 concrete operation step includes：
S41, the processing of Track In Track ripple door：According to the place Optimal Parameters of terminal display monitoring system feedback and enabled control
System, Plot coherence data after processing are carried out with the processing of Track In Track ripple door, by with the Trajectory Prediction value in the Optimal Parameters of place
Centered on establish Trajectory Prediction tracking gate, by Plot coherence Data Identification after the processing in the Trajectory Prediction tracking gate
Reconnaissance mark is treated for flight path；
S42, noise spot mark suppression processing：According to the noise spot mark of terminal display monitoring system feedback suppress processing parameter and
Enabled control, is noise spot mark by Plot coherence Data Identification after the processing in interference region；
S43, fixed clutter suppression processing：According to the fixed clutter of terminal display monitoring system feedback suppress processing parameter and
Enabled control, is fixed clutter point mark by Plot coherence Data Identification after the processing in fixed clutter region；
The point mark filtering process that S44, point mark thresholding suppress：Suppressed according to the point mark thresholding of terminal display monitoring system feedback
Parameter and enabled control, it is less than the door of point mark thresholding suppression parameter setting for the target point number of Plot coherence data after processing
The Plot coherence data of limit, it is condensed and a little filters out processing and obtain the filtered data of a mark.
The beneficial effects of the present invention are：
1), the present invention is handled by initial echo, Plot coherence is handled, point mark filtering process enters three coordinate points mark data
Row cohesion, filtering optimization processing, and the result after Target dots processing is presented to user by terminal display monitoring system, so as to carry
Monitoring management ability of the Gao Liao administrative departments to low altitude small target.The initial echo processing of the present invention and the process of Plot coherence are
Automatically, influence of the artificial factor to final three-dimensional surveillance radar Plot coherence result, terminal are reduced to greatest extent
The place Optimal Parameters of display monitoring system feedback and enabled control, it can further optimize the quality of a mark, to the point after cohesion
Mark is filtered processing, therefore the present invention realizes the output of the distance to low target, orientation, elevation information, is traffic pipe
Department processed provides foundation to low, slow, Small object identification, monitoring.
2), all point mark data handling procedures of the present invention are all parallel, drastically increase the efficiency of data processing,
User is set to perform the distance, orientation, elevation information of acquisition low target most fast during operation.
Brief description of the drawings
Fig. 1 is flow chart of the method for the present invention；
Fig. 2 is the initial echo process chart of the present invention；
Fig. 3 is the Plot coherence process chart of the present invention；
Fig. 4 is the point mark filtering process flow chart of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in figure 1, a kind of three-dimensional surveillance radar Target dots processing method based on AESA technical system, including
Following steps：
S1, the point mark data for crossing by network inputs thresholding；
S2, the point mark data progress channel choosing for crossing thresholding is handled greatly, at unruly-value rejecting processing acquisition initial echo
Point mark data after reason；
S3, to initial echo processing after point mark data carry out successively apart from upper agglomeration process, at upper resolution
Reason and difference beam vertical beam survey high disposal, agglomeration process, the resolution processing in orientation in orientation, and mark is put after being handled
Condense data；
S4, the place Optimal Parameters using terminal display monitoring system feedback and enabled control, to Plot coherence after processing
Data carry out the processing of Track In Track ripple door, noise spot mark suppression processing successively, fixed clutter suppression is handled, point mark thresholding suppresses
Point mark filtering process obtains result data；
S5, result data is sent to terminal display monitoring system by network it is presented to user.
Step S1, S2 belongs to initial echo processing step, is specifically realized in initial echo processing module；Step S3 belongs to
Plot coherence processing step, specifically realized in Plot coherence processing module；Step S4, S5 belongs to a mark filter step, specifically
Realized in a mark filtration module.
The place Optimal Parameters include Track In Track ripple door processing parameter, noise spot mark suppresses processing parameter, fixation is miscellaneous
Ripple suppresses processing parameter, point mark thresholding suppresses parameter.
Specifically, the point mark data for crossing thresholding are carried out with the big processing of channel choosing, unruly-value rejecting processing obtains initial return
The concrete operation step of point mark data after ripple processing includes：The point mark data for crossing thresholding are carried out with the big processing of channel choosing,
Channel is selected the point mark data after big processing be standardized storage processing, the point mark data after standardization storage processing are set
The clutter frequency threshold of unruly-value rejecting, target Doppler frequency in the point mark data after storage processing will be standardized and be less than outlier
The point mark data of the clutter frequency threshold of rejecting filter out as clutter point mark data, so as to obtain the point mark after initial echo processing
Data.
Wherein, the big processing of channel choosing is to crossing corresponding to the range cell where the point mark data of thresholding and 5 in passage
The range value of channel carries out size comparison, retain the timestamp for the target that range value is maximum on respective distance unit, target away from
From, the Doppler frequency information of the range value of the orientation of target, target, target.
The point mark data for crossing thresholding include timestamp (temporal information of detections of radar to target, the unit of target：Year
Month day Hour Minute Second), the distance (rice) of target, the orientation (degree) of target, 5 channel objects and passage range value (dB), 5
The range value (dB) of the poor passage of channel object, the Doppler frequency information (hertz) of target.
The clutter frequency threshold of the unruly-value rejecting is to being sent into thresholding after the front-end processing of this three-dimensional surveillance radar
The Doppler frequency information of target is counted in point mark data, draws the clutter frequency threshold of unruly-value rejecting, the clutter frequency
Thresholding can detect 80% target, and the clutter frequency threshold and radar erection place, radar front end processing are related, it is necessary to radar
Preset value is drawn after setting up start test on the spot.
Step S3 concrete operation step includes：
S31, apart from upper agglomeration process：Point mark data after initial echo processing are carried out with a mark data apart from upper solidifying
It is poly-, mark data are put after obtaining distance cohesion, mark data are put after the distance cohesion includes mesh after the timestamp of target, distance cohesion
Target distance (rice), distance cohesion after target orientation (degree), distance cohesion after target and channel amplitude value (dB), distance coagulate
The Doppler frequency information (hertz) of target, the distance of target rise after the poor channel amplitude value (dB) of target, distance cohesion after poly-
Beginning unit, target apart from end unit, the starting of the distance of target and distance terminate in each range cell target amplitude
Value；
S32, apart from upper resolution handle：Point mark data after condensing of adjusting the distance carry out target physical length and judged in advance, set
Target length preset value, according to this three-dimensional surveillance radar actual detection power and detection accuracy (range resolution, azimuth discrimination
Power, height resolving power) carry out target length preset value setting, if target physical length is more than target length preset value,
Travel through the distance starting of target successively and distance terminate in each range cell target range value, obtain the range value of target
The minimum range cell of the range value of the big range cell of the range cell of maximum, the range value of target time and target, distance
Mark data are put after cohesion using the minimum range cell of the range value of target as boundary, mark data are put after obtaining Range resolution processing；
S33 and difference beam vertical beam survey high disposal：Range resolution processing is calculated using with difference beam angle measuring algorithm
The angle information of point mark data, elevation information, range cell information, azimuth information, the target point number for condensing data afterwards；
It is the difference by calculating and channel amplitude value and poor channel amplitude value with difference beam angle measuring algorithm, utilizes radar day
Line directional diagram curve table, computation of table lookup is carried out, obtains the differential seat angle corresponding to amplitude value difference；The angle information is Range resolution
The default elevation angle of antenna that mark data are put after processing adds differential seat angle；
S34, the agglomeration process in orientation：According to difference beam vertical beam survey high disposal after put mark data in range cell
Information, elevation information, azimuth information, same distance unit, identical height, the point mark data of different azimuth are searched, are obtained same
Targets Dots data broadening data in the azimuth direction, then to broadening data on azimuth direction according to and channel amplitude value select
Greatly, the point mark data after orientation cohesion are obtained；
Wherein, and channel amplitude value choosing be greatly to broadening data on azimuth direction according to and passage range value carry out size
Compare, retain broadening data neutralizing canal range value is maximum on azimuth direction the timestamp of target, the distance of target, target
Orientation, the range value of target, the Doppler frequency information of target, obtain the point mark data after orientation cohesion.
S35, resolution is handled in orientation：The direction that point mark data after orientation is condensed scan according to radar antenna is carried out
Target bearing developed width judges in advance, wherein, the distance that the target bearing developed width is equal to target terminates orientation and subtracts mesh
Target adds 1 apart from Initial Azimuth, target bearing width preset value is set, according to this three-dimensional surveillance radar actual detection power
The setting of target bearing width preset value is carried out with detection accuracy (range resolution, azimuth resolution, height resolving power), if
Target bearing developed width is more than target bearing width preset value, then the distance of target rises in the point mark data after orientation is condensed
Beginning, orientation differentiated plus target bearing width preset value, so as to Plot coherence data after being handled.
Step S4 concrete operation step includes：
S41, the processing of Track In Track ripple door：According to the place Optimal Parameters of terminal display monitoring system feedback and enabled control
System, Plot coherence data after processing are carried out with the processing of Track In Track ripple door, by with the Trajectory Prediction value in the Optimal Parameters of place
Centered on establish Trajectory Prediction tracking gate, by Plot coherence Data Identification after the processing in the Trajectory Prediction tracking gate
Reconnaissance mark is treated for flight path；
S42, noise spot mark suppression processing：Processing parameter is suppressed according to the noise spot mark of terminal display monitoring system feedback
(scope of interference range) and enabled control, is noise spot mark by Plot coherence Data Identification after the processing in interference region；
S43, fixed clutter suppression processing：Processing parameter is suppressed according to the fixed clutter of terminal display monitoring system feedback
(scope in fixed clutter area) and enabled control, is fixation by Plot coherence Data Identification after the processing in fixed clutter region
Clutter point mark；
The point mark filtering process that S44, point mark thresholding suppress：Suppressed according to the point mark thresholding of terminal display monitoring system feedback
Parameter and enabled control, it is less than the door of point mark thresholding suppression parameter setting for the target point number of Plot coherence data after processing
The Plot coherence data of limit, it is condensed and a little filters out processing and obtain the filtered data of a mark.
Step S41~S44 processing is to judge whether to start to Plot coherence data after processing by enabled control
A mark filtering process is carried out, place situation on the spot can be set up according to radar, to judge to start which kind of place Optimal Parameters and enable
Control.
As shown in Fig. 2 when carrying out initial echo processing, pass through network, inlet point mark for the point mark data for crossing thresholding
In processing system software, under MTD patterns, the big processing of channel choosing is carried out；And then outlier part in original point mark is rejected
The original point mark information after initial echo processing is obtained, such as：No. CPI where target, ripple position number, range cell storehouse position,
The original magnitude level etc. of the original magnitude level of azimuth information and passage, poor passage.
The step of in order to be further understood that mark agglomeration process in midpoint of the present invention, with reference to being handled such as Fig. 3 Plot coherence
Step further illustrates；
Point mark data are apart from upper agglomeration process：
Point mark data after initial echo processing press range cell storehouse typing target original point mark data, the point of same target
Mark data may continue several apart from quantifying unit, it is necessary to by crossing the continuity of threshold point mark in range cell by different mesh
Target point mark data are condensed respectively, prevent that different target is overlapping together.
Point mark data are handled apart from upper resolution：
Mainly set about from the characteristics of signals of corresponding radar and relevant priori, determine single target point mark data in distance
The signal amplitude thresholding of upper range cell number and the main lobe both sides each unit that may continue, by range cell sliding window mode successively to
Front slide, the resolution that the point mark after cohesion of adjusting the distance enters on row distance.
High disposal is surveyed with difference beam vertical beam：
Different beams possibly be present at by same target, can after adjacent beams carry out wave beam cohesion according to range cell
Target's center's wave beam is obtained, the center elevation angle of each wave beam is default, and the signal amplitude on each wave beam is, it is known that can carry out
With difference beam angle measurement, it can be seen from the radar beam coverage diagram of AESA system, by inter-class correlation, in high beam zone,
The possibility type that target falls in a wave beam is big, may fall in 2~3 wave beams in low beam zone target, using the angle measured,
The elevation information of target can be obtained according to the range cell at place using trigonometric function method.
The agglomeration process in orientation：
In order to which cancelling noise and interference cause decoy, and effective impulse is collected as much as possible and participates in accumulation fusion, carry
The height measuring and calculating degree of accuracy, the sliding window detection method that orientation cohesion judges according to beginning/end criterion obtain the orientation state pause judgments of target
Information, the azimuth information of target is being obtained using orientation centroid method.
Resolution is handled in orientation：
In view of the fluctuation characteristic of target, certain phase is done to the wave beam number and distance of suspected target when doing orientation cohesion
Pass is handled, and specific practice is the suspected target to meeting initial conditions, the data traversal with next group of CPI, if distance is one
In the range of standing wave door, the orientation broadening of same target is regarded as, meets orientation sliding window detection, until terminating, preserves starting and ending
Orientation.If orientation starting and ending is higher than corresponding horizontal beam width, according to background magnitude value, to the azimuth information of target
Carry out resolution processing.
The step of in order to be further understood that mark filtering process in midpoint of the present invention, with reference to being handled such as Fig. 4 Plot coherence
Step further illustrates；
The processing of Track In Track ripple door：
According to fan-shaped related ripple door is set up centered on the predicted value in a cycle on flight path, the size of ripple door is mainly according to mesh
The information such as target distance, speed, orientation determine that, by tracking gate information, reconnaissance mark is treated in prediction.
The suppression of noise spot mark is handled：
The place Optimal Parameters sent by terminal display monitoring software, carry out the enabled control of noise spot mark and check, definition
Interference sector, define noise spot mark and suppress parameter, according to the definition of noise spot mark sector, judge that the target point after cohesion is again dry
Disturb the target point in area, the target point in intermediate disturbance area, the target point of light interference range.
Fixed clutter suppression is handled：
The enabled control exported according to terminal display monitoring software, disposal field Optimal Parameters are suppressed according to fixed clutter,
The sector auxiliary information in the fixed clutter region of transmission, fixed clutter point is identified as to the target point for falling into fixed clutter region.
The point mark filtering process that point mark thresholding suppresses：
Effective processing spatial domain is divided into the subelement of some ring-type sectors by point mark threshold processing first, then according to per height
The density of unit spot mark starts point mark threshold processing function, when radar part spatial domain because a mark is excessive, influences at flight path correlation
Manage and produce false track, when fixed clutter area and interference range point mark inhibition unobvious, a mark threshold processing can be started.Point
Characteristic parameter (cohesion after target point number thresholding) of the mark threshold processing according to point mark, dynamically adjust the point mark filtering of above-mentioned sector
Parameter or criterion, so as to reduce False Intersection Points mark number and its influence to flight path relevant treatment.Point mark threshold processing is to being sent to boat
Mark enrolls the afterbody point mark filter unit of unit, the purpose is to reduce False Intersection Points mark number caused by spurious echo, and most
The false alarm rate of the low radar of final decline.
The filtered target point of a mark is obtained, terminal display monitoring software is transmitted to by network and is presented to user.
Initial echo is handled, Plot coherence and point mark filtering process after three-dimensional surveillance radar Target dots processing after with
The form of network bag is transmitted to terminal display monitoring software by network, is presented to user.
In summary, initial echo of the invention processing, Plot coherence processing procedure are spontaneous, are reduced to greatest extent
Influence of the human factor to final Plot coherence result, the calculating of all data is all parallel, drastically increase a mark
Data-handling efficiency, and the place Optimal Parameters sent by terminal display monitoring software, can be to the point mark data after cohesion
Processing is filtered, distance, orientation, the precision of elevation information of low target is further improved, allows users to obtain in real time
Result after Target dots processing.
Claims (5)
1. the three-dimensional surveillance radar Target dots processing method based on AESA technical system, it is characterised in that including following
Step：
S1, the point mark data for crossing by network inputs thresholding；
S2, the point mark data progress channel choosing for crossing thresholding is handled greatly, after unruly-value rejecting processing acquisition initial echo processing
Point mark data；
S3, to initial echo processing after point mark data carry out successively apart from upper agglomeration process, apart from upper resolution processing and
Difference beam vertical beam surveys high disposal, agglomeration process, the resolution processing in orientation in orientation, Plot coherence number after being handled
According to；
S4, the place Optimal Parameters using terminal display monitoring system feedback and enabled control, to Plot coherence data after processing
The processing of Track In Track ripple door, noise spot mark suppression processing, fixed clutter suppression processing, the point mark of point mark thresholding suppression are carried out successively
Filtering process obtains result data；
S5, result data is sent to terminal display monitoring system by network it is presented to user.
2. the three-dimensional surveillance radar Target dots processing method based on AESA technical system as claimed in claim 1, its
It is characterised by：The place Optimal Parameters include Track In Track ripple door processing parameter, noise spot mark suppresses processing parameter, fixation is miscellaneous
Ripple suppresses processing parameter, point mark thresholding suppresses parameter.
3. the three-dimensional surveillance radar Target dots processing method based on AESA technical system as claimed in claim 2, its
It is characterised by, step S2 concrete operation step includes：
The point mark data for crossing thresholding are carried out with the big processing of channel choosing, selects the point mark data after big processing to carry out standard channel
Change storage processing, the point mark data after standardization storage processing are set with the clutter frequency threshold of unruly-value rejecting, will be standardized
Target Doppler frequency is less than the point mark data conduct of the clutter frequency threshold of unruly-value rejecting in point mark data after storage processing
Clutter point mark data filter out, so as to obtain the point mark data after initial echo processing.
4. the three-dimensional surveillance radar Target dots processing method based on AESA technical system as claimed in claim 3, its
It is characterised by, step S3 concrete operation step includes：
S31, apart from upper agglomeration process：Point mark data after initial echo processing are carried out with a mark data apart from upper cohesion,
Mark data are put after obtaining distance cohesion, mark data are put after the distance cohesion includes target after the timestamp of target, distance cohesion
Distance, after distance cohesion after the orientation of target, distance cohesion target and the difference of target is led to after channel amplitude value, distance cohesion
The Doppler frequency information of target after road range value, distance cohesion, target terminate list apart from start element, the distance of target
Member, the starting of the distance of target and distance terminate in each range cell target range value；
S32, apart from upper resolution handle：Point mark data after condensing of adjusting the distance carry out target physical length and judged in advance, set target
Length preset value, if target physical length is more than target length preset value, distance starting and the distance of target are traveled through successively
In end in each range cell target range value, obtain the maximum range cell of the range value of target, the range value of target
The minimum range cell of the range value of secondary big range cell and target, mark data are put after distance cohesion with the range value of target
Minimum range cell is boundary, and mark data are put after obtaining Range resolution processing；
S33 and difference beam vertical beam survey high disposal：Point after Range resolution is handled is calculated using with difference beam angle measuring algorithm
The angle information of mark data, elevation information, range cell information, azimuth information, the target point number for condensing data；
S34, the agglomeration process in orientation：Range cell letter in mark data is put according to being surveyed with difference beam vertical beam after high disposal
Breath, elevation information, azimuth information, same distance unit, identical height, the point mark data of different azimuth are searched, obtain same mesh
Punctuate mark data broadening data in the azimuth direction, then to broadening data on azimuth direction according to and channel amplitude value select it is big,
Obtain the point mark data after orientation cohesion；
S35, resolution is handled in orientation：The direction that point mark data after orientation is condensed scan according to radar antenna carries out target
Orientation developed width judges in advance, wherein, the distance that the target bearing developed width is equal to target terminates orientation and subtracts target
1 is added apart from Initial Azimuth, target bearing width preset value is set, if target bearing developed width is more than target bearing width
Preset value, then after orientation is condensed point mark data in target apart from Initial Azimuth plus target bearing width preset value progress
Differentiate, so as to Plot coherence data after being handled.
5. the three-dimensional surveillance radar Target dots processing method based on AESA technical system as claimed in claim 4, its
It is characterised by, step S4 concrete operation step includes：
S41, the processing of Track In Track ripple door：It is right according to the place Optimal Parameters of terminal display monitoring system feedback and enabled control
Plot coherence data carry out the processing of Track In Track ripple door after processing, by centered on the Trajectory Prediction value in the Optimal Parameters of place
Trajectory Prediction tracking gate is established, is flight path by Plot coherence Data Identification after the processing in the Trajectory Prediction tracking gate
Treat reconnaissance mark；
S42, noise spot mark suppression processing：Processing parameter is suppressed according to the noise spot mark of terminal display monitoring system feedback and enabled
Control, is noise spot mark by Plot coherence Data Identification after the processing in interference region；
S43, fixed clutter suppression processing：Processing parameter is suppressed according to the fixed clutter of terminal display monitoring system feedback and enabled
Control, is fixed clutter point mark by Plot coherence Data Identification after the processing in fixed clutter region；
The point mark filtering process that S44, point mark thresholding suppress：Parameter is suppressed according to the point mark thresholding of terminal display monitoring system feedback
With enabled control, it is less than a thresholding for mark thresholding suppression parameter setting for the target point number of Plot coherence data after processing
Plot coherence data, it is condensed and a little filters out processing and obtain the filtered data of a mark.
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