CN104200112A - Omnidirectional radar angle-measurement method and system based on rotating-field antenna - Google Patents
Omnidirectional radar angle-measurement method and system based on rotating-field antenna Download PDFInfo
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Abstract
The invention relates to the technical field of omnidirectional radar and discloses an omnidirectional radar angle-measurement method and system based on a rotating-field antenna. The method comprises the steps that airspace is divided according to an antenna combination mode; the azimuthal angle theta of a target trace point is calculated in an amplitude comparison and angle measurement mode; the tract point and flight path data association calculation is carried out, and flight paths meeting relevant requirements are updated; for flight paths not meeting the relevant requirements, a target true azimuthal angle is calculated, and flight paths are set, or trace point condensation processing is carried out. According to the omnidirectional radar angle-measurement method and system based on the rotating-field antenna, by the adoption of signal emitting time and space diversity technology, the problem that a measurement angle is fuzzy is solved, an omnidirectional radar angle-measurement theory based on the rotating-field antenna is perfected, and the omnidirectional radar with various advantages can be put into actual engineering application.
Description
Technical field
The present invention relates to more particularly, relate to a kind of omnidirectional's radar angle measurement method and system based on rotating-field antenna.
Background technology
At present, rotating-field antenna is widely used at radar and other numerous areas, as for communication, electromagnetic comprehensive the transmitting and receiving of field of broadcast televisions.Omnidirectional's radar based on rotating-field antenna is a kind of new system radar, has as little in volume, the advantage such as power is little, lightweight, cost is low and reliability is high.In azimuth plane theaomni-directional transmission with to receive electromagnetic beam in the situation that the how position angle of measurement target be the key issue that first this radar faces.
Omnidirectional's radar based on rotating-field antenna mainly comes the position angle of measurement target by measuring angle by comparing amplitude, in the time that target echo enters receiving antenna with certain position angle, corresponding three passages of equally distributed receiving antenna oscillator can receive the echoed signal of different amplitudes, can obtain azimuth of target by the mode of solving equations in theory.While realization in engineering, triple channel measuring angle by comparing amplitude precision is affected by noise large and calculate loaded down with trivial details, therefore can be according to the beam feature of rotating-field antenna, synthesize and form the consistent left-handed and dextrorotation passage of signal amplitude by passage, then calculate the position angle of target by comparing the phasometer of two passages.Be illustrated in figure 1 the rotating-field antenna receiving target echo schematic diagram of two pairs of oscillators, because the oscillator of receiving antenna has 180 ° of symmetry characteristics, can not distinguish target echo and enter receiving antenna with θ angle or θ+180 °, measuring angle by comparing amplitude method exists angle to resolve fuzzy problem.The fuzzy problem of omnidirectional's radar angle measurement based on rotating-field antenna is the inherent feature of this radar, needs new technological means to solve this problem.
Summary of the invention
For the above-mentioned defect of prior art, technical matters to be solved by this invention is the angle measurement fuzzy problem that how to solve existing omnidirectional radar.
For solving the problems of the technologies described above, on the one hand, the invention provides a kind of omnidirectional's radar angle measurement method based on rotating-field antenna, described omnidirectional radar comprises independently emitting antenna of 4 pairs, described 4 slave antennas differ 90 ° of configurations successively; Described method comprises step:
Radar detection spatial domain is divided into 2 combined transmit districts and 2 public crossover regions by the array mode of described 4 slave antennas, and described 4 slave antennas are simultaneously to air-launched wave beam;
Receiving target echo, forms the consistent left-handed and dextrorotation passage of signal amplitude, and more left-handed and phasometer dextrorotation passage calculates the azimuth angle theta of target;
Carry out a mark and flight path data correlation and calculate, first use described azimuth angle theta and the flight path of some mark to carry out correlated judgment, if meet related request, upgrade flight path by described azimuth angle theta; If do not meet related request, carry out correlated judgment with flight path again after the position angle in a mark being become to θ+180 °, if now meet related request, upgrade flight path with azimuth angle theta+180 °;
Whether judgement meets with incoherent some mark of flight path the criterion of setting up flight path, carries out a mark agglomeration process if be not inconsistent; If met before setting up flight path, judge target region according to the described azimuth angle theta of a mark, close relevant antenna combination, calculate target true bearing angle.
Preferably, describedly radar detection spatial domain is divided into 2 combined transmit districts by the array mode of described 4 slave antennas and 2 public crossover regions comprise step:
The the second combined transmit district that radar detection spatial domain is divided into the first combined transmit district, third antenna and the combination of the 4th antenna of the first antenna and the combination of the second antenna obtains the second public crossover region between the first public crossover region, the second antenna and the third antenna between the first antenna and the 4th antenna simultaneously.
Preferably, the described described azimuth angle theta according to a mark judges target region, closes relevant antenna combination, calculates target true bearing angle and comprises step:
If target, in the first combined transmit district, region, is turn-offed third antenna and the 4th antenna within 3 frame periods, if still can receive the information of target, determine that target is in the first combined transmit district, the true bearing angle of target is θ; Otherwise, determine that target is in the second combined transmit district, the true bearing angle of target is θ+180 °;
If target, in the first public crossover region, is turn-offed the second antenna and third antenna within 3 frame periods, if still can receive the information of target, determine that target is in the first public crossover region, the true bearing angle of target is θ; Otherwise, determine that target is in the second public crossover region, the true bearing angle of target is θ+180 °;
If target is in the second public crossover region, equally within 3 frame periods, turn-off the second antenna and third antenna, if still can receive the information of target, determine that target is in the first public crossover region, the true bearing angle of target is θ+180 °, otherwise, determine that target is in the second public crossover region, the true bearing angle of target is θ.
Preferably, in described method, form the consistent left-handed and dextrorotation passage of signal amplitude through synthetic processing of passage.
Preferably, whether incoherent some mark of described judgement and flight path meets the criterion of setting up flight path and comprises step:
The point mark information that judges whether to receive same target within the multiframe cycle, if it is meets; Otherwise do not meet.
On the other hand, the present invention also provides a kind of omnidirectional's radar angle measurement system based on rotating-field antenna simultaneously, and described omnidirectional radar comprises independently emitting antenna of 4 pairs, and described 4 slave antennas differ 90 ° of configurations successively; Described system comprises:
Module is divided in spatial domain, and for radar detection spatial domain is divided into 2 combined transmit districts and 2 public crossover regions by the array mode of described 4 slave antennas, described 4 slave antennas are simultaneously to air-launched wave beam;
Measuring angle by comparing amplitude module, for receiving target echo, forms the consistent left-handed and dextrorotation passage of signal amplitude, and more left-handed and phasometer dextrorotation passage calculates the azimuth angle theta of target;
Associated computing module, calculates for carrying out a mark and flight path data correlation, first uses described azimuth angle theta and the flight path of some mark to carry out correlated judgment, if meet related request, upgrades flight path by described azimuth angle theta; If do not meet related request, carry out correlated judgment with flight path again after the position angle in a mark being become to θ+180 °, if now meet related request, upgrade flight path with azimuth angle theta+180 °;
True angle measurement module, for judging with incoherent some mark of flight path whether meet the criterion of setting up flight path, carries out a mark agglomeration process if be not inconsistent; If met before setting up flight path, judge target region according to the described azimuth angle theta of a mark, close relevant antenna combination, calculate target true bearing angle.
Preferably, described spatial domain division module further comprises:
Module is divided in region, the the second combined transmit district combining for radar detection spatial domain being divided into the first combined transmit district, third antenna and the 4th antenna of the first antenna and the combination of the second antenna obtains the second public crossover region between the first public crossover region, the second antenna and the third antenna between the first antenna and the 4th antenna simultaneously.
Preferably, described true angle measurement module further comprises:
Launch site angle measurement module, for in the time that preliminary judgement target is in the first combined transmit district, region, within 3 frame periods, turn-off third antenna and the 4th antenna, if still can receive the information of target, determine that target is in the first combined transmit district, the true bearing angle of target is θ; Otherwise, determine that target is in the second combined transmit district, the true bearing angle of target is θ+180 °;
The first crossover region angle measurement module, for in the time that preliminary judgement target is in the first public crossover region, within 3 frame periods, turn-off the second antenna and third antenna, if still can receive the information of target, determine that target is in the first public crossover region, the true bearing angle of target is θ; Otherwise, determine that target is in the second public crossover region, the true bearing angle of target is θ+180 °;
The second crossover region angle measurement module, for in the time that preliminary judgement target is in the second public crossover region, within 3 frame periods, turn-off the second antenna and third antenna, if still can receive the information of target, determine that target is in the first public crossover region, the true bearing angle of target is θ+180 °, otherwise, determine that target is in the second public crossover region, the true bearing angle of target is θ.
Preferably, in described measuring angle by comparing amplitude module, form the consistent left-handed and dextrorotation passage of signal amplitude through synthetic processing of passage.
Preferably, in described true angle measurement module, judge whether to receive the some mark information of same target within the multiframe cycle, if it is meet the criterion of setting up flight path; Otherwise do not meet.
The present invention adopts signal transmission time space diversity reception to communicate, has solved angle measurement fuzzy problem, perfect omnidirectional's radar angle measurement theory based on rotating-field antenna, and this radar that makes to have numerous advantages is put into practical engineering application becomes possibility.
Brief description of the drawings
Fig. 1 is the rotating-field antenna receiving target echo schematic diagram of two pairs of oscillators;
Fig. 2 is the formation schematic diagram of left passage and right passage;
Fig. 3 is the structural representation of omnidirectional's transmitting radar antenna in one embodiment of the present of invention;
Fig. 4 is omnidirectional's radar emission time and space diversity schematic diagram in one embodiment of the present of invention;
Fig. 5 is the schematic flow sheet of the omnidirectional's radar angle measurement method based on rotating-field antenna in a preferred embodiment 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 clearly and completely described.Obviously, described embodiment is for implementing preferred embodiments of the present invention, and described description is to illustrate that rule of the present invention is object, not in order to limit scope of the present invention.Protection scope of the present invention should with claim the person of being defined be as the criterion, based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
The basic skills of the angle measurement based on rotating-field antenna is measuring angle by comparing amplitude, as shown in Figure 1, in the time that target echo enters receiving antenna with θ angle, equally distributed A, B two can receive the echoed signal of different amplitudes to corresponding two passages of oscillator, can obtain θ angle by the mode of solving equations.While realization in engineering, multichannel measuring angle by comparing amplitude precision is affected by noise large and calculate loaded down with trivial details, therefore can be according to the beam feature of rotating-field antenna, synthesize and form signal amplitude unanimously but the different left and right passage of phase place by passage, as shown in Figure 2, then calculate the position angle of target by comparing the phasometer of two passages.
But in actual conditions, because the oscillator of receiving antenna physically has 180 ° of symmetry characteristics, can not distinguish target echo and enter receiving antenna with θ angle or θ+180 °, measuring angle by comparing amplitude method exists angle to resolve fuzzy problem, while showing solving equation group, in 0 °～360 ° codomains, obtain and have two solutions that differ 180 °.For this defect, the present invention proposes signal transmission time space diversity method and solves the angle measurement fuzzy problem of the omnidirectional's radar based on rotating-field antenna.
Signal transmission time space diversity is to adopt to transmit alternately to cover two fuzzy spatial domains of angle measurement on the time and reach the object of ambiguity solution.Launch time, space diversity needed emitting antenna to possess the ability of spatial direction, form two wave beams at azimuth plane, each wave beam covers the spatial domain of 180 °, but two wave beams exist overlapping problem in real work, and the target in crossover region still can not solve angle measurement fuzzy problem.
The present invention adopts and comprises the independently problem of emitting antenna solution wave beam crossover region of 4 pairs, is illustrated in figure 3 omnidirectional's transmitting radar antenna composition schematic diagram.4 slave antennas can need to be configured to two kinds of overlapping situations according to angle measurement, when the first antenna 1 and the second antenna 2 are that one group, third antenna 3 and the 4th antenna 4 are while organizing for another, as shown in the figure as left in Fig. 4 of crossover region; When the first antenna 1 and the 4th antenna 4 are that one group, the second antenna 2 and third antenna 3 are while organizing for another, as shown in the figure as right in Fig. 4 of crossover region.In the present invention, adopt signal transmission time space diversity reception to communicate, solved angle measurement fuzzy problem.Its method is divided spatial domain by the combination of antenna; First utilize measuring angle by comparing amplitude to calculate the azimuth angle theta of Targets Dots; Carry out again a mark and flight path data correlation and calculate, upgrade the flight path that meets related request; To not meeting the flight path of related request, calculate target true bearing angle and set up flight path, or carrying out a mark agglomeration process and after details, carry out again above-mentioned processing wait obtaining more.
More specifically, as shown in Figure 5, solve target angle measurement fuzzy problem and radar data processing system closely related, Fig. 5 has described the true bearing angle that how to obtain target:
As shown in figure as left in Fig. 4, radar detection spatial domain is divided into the first antenna 1 and the second antenna 2 combined transmit district SECTOR_1_2, third antenna 3 and the 4th antenna 4 combined transmit district SECTOR_3_4, public crossover region SECTOR_COM_1, SECTOR_COM_2, and 4 slave antennas are simultaneously to air-launched wave beam.
Receiving antenna is received target echo, form the consistent left-handed and dextrorotation passage of signal amplitude through processing such as passage close, more left-handed and phasometer dextrorotation passage of radar signal processor calculates the position angle of target, and to radar data processing system sending point mark information (azimuth angle theta), the region that some mark may occur is SECTOR_1_2, SECTOR_COM_1, SECTOR_COM_2.
Data handling system carries out a mark and flight path data correlation calculates, and first uses some mark (azimuth angle theta) to carry out correlated judgment with flight path, if meet related request, upgrades flight path with some mark (azimuth angle theta); If do not meet related request, the position angle in a mark is become to θ+180 °, and then carry out a mark (azimuth angle theta+180 °) and flight path correlated judgment, if meet related request, upgrade flight path with some mark (azimuth angle theta+180 °).
Radar data processing system will carry out with incoherent some mark of flight path (azimuth angle theta) processing such as a mark cohesion, if receive the some mark information of same target within the multiframe cycle, meet radar data Processing Algorithm and set up the accurate side of flight path, before setting up flight path, data handling system judges target region according to a mark (azimuth angle theta), close relevant antenna combination, calculate target true bearing angle.
Particularly, if target, in the SECTOR_1_2 of region, is turn-offed third antenna 3 and the 4th antenna 4 within 3 frame periods, if still can receive the information of target, determine that target is in the SECTOR_1_2 of region, the true bearing angle of target is θ; Otherwise, determine that target is in the SECTOR_3_4 of region, the true bearing angle of target is θ+180 °.
If target is in the SECTOR_COM_1 of region, within 3 frame periods, turn-off the second antenna 2 and third antenna 3, if still can receive the information of target, determine that target is in the SECTOR_COM_1 of region, the true bearing angle of target is θ, otherwise, determine that target is in the SECTOR_COM_2 of region, the true bearing angle of target is θ+180 °.
If target is in the SECTOR_COM_2 of region, equally within 3 frame periods, turn-off the second antenna 2 and third antenna 3, if still can receive the information of target, determine that target is in the SECTOR_COM_1 of region, the true bearing angle of target is θ+180 °, otherwise, determine that target is in the SECTOR_COM_2 of region, the true bearing angle of target is θ.
The present invention adopts to transmit and alternately covers two fuzzy spatial domains of angle measurement on the time and reach the object of ambiguity solution.Because employing possesses the antenna of the ability of spatial direction, form two wave beams at azimuth plane, each wave beam covers the spatial domain of 180 °, closely in conjunction with radar data treatment scheme, by controlling certain antenna combination of open and close, alternately cover the fuzzy spatial domain of angle measurement, solve angle measurement ambiguity solution problem.Akin with the present invention, also can adopt transmission frequency space diversity scheme to substitute and solve angle measurement fuzzy problem, concrete grammar is to adopt transmitting of two different frequencies to cover two spatial domains that angle measurement is fuzzy, arrives the object of ambiguity solution when reception by frequency diversity processing.Which and launch time of the present invention space diversity method similar, need emitting antenna to possess the ability of spatial direction, emitting antenna at least can form two wave beams at azimuth plane, each wave beam covers the spatial domain of 180 °, but this scheme needs the more resource of processing, thereby cause system cost higher, do not repeat them here.
One of ordinary skill in the art will appreciate that, the all or part of step realizing in above-described embodiment method is can carry out the hardware that instruction is relevant by program to complete, described program can be stored in a computer read/write memory medium, this program is in the time carrying out, comprise each step of above-described embodiment method, and described storage medium can be: ROM/RAM, magnetic disc, CD, storage card etc.Therefore, relevant technical staff in the field will be understood that, corresponding with method of the present invention, the present invention also comprises a kind of omnidirectional's radar angle measurement system based on rotating-field antenna simultaneously, wherein said omnidirectional radar comprises independently emitting antenna of 4 pairs, described 4 slave antennas differ 90 ° of configurations successively, with said method step correspondingly, this system comprises:
Module is divided in spatial domain, and for radar detection spatial domain is divided into 2 combined transmit districts and 2 public crossover regions by the array mode of described 4 slave antennas, described 4 slave antennas are simultaneously to air-launched wave beam;
Measuring angle by comparing amplitude module, for receiving target echo, forms the consistent left-handed and dextrorotation passage of signal amplitude, and more left-handed and phasometer dextrorotation passage calculates the azimuth angle theta of target;
Associated computing module, calculates for carrying out a mark and flight path data correlation, first uses described azimuth angle theta and the flight path of some mark to carry out correlated judgment, if meet related request, upgrades flight path by described azimuth angle theta; If do not meet related request, carry out correlated judgment with flight path again after the position angle in a mark being become to θ+180 °, if now meet related request, upgrade flight path with azimuth angle theta+180 °;
True angle measurement module, for judging with incoherent some mark of flight path whether meet the criterion of setting up flight path, carries out a mark agglomeration process if be not inconsistent; If met before setting up flight path, judge target region according to the described azimuth angle theta of a mark, close relevant antenna combination, calculate target true bearing angle.
Omnidirectional's radar based on rotating-field antenna is a new system radar at home, has as little in volume, the advantage such as power is little, lightweight, cost is low and reliability is high.But because the oscillator of receiving antenna has 180 ° of symmetry characteristics, the solution procedure of azimuth of target exists fuzzy problem, angle measurement is fuzzy is the inherent shortcoming of this new system radar.The present invention adopts signal transmission time space diversity reception to communicate, has solved angle measurement fuzzy problem, perfect omnidirectional's radar angle measurement theory based on rotating-field antenna, and this radar that makes to have numerous advantages is put into practical engineering application becomes possibility.
Above-mentioned explanation illustrates and has described some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, amendment and environment, and can, in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not depart from the spirit and scope of the present invention, all should be in the protection domain of claims of the present invention.
Claims (10)
1. the omnidirectional's radar angle measurement method based on rotating-field antenna, is characterized in that, described omnidirectional radar comprises independently emitting antenna of 4 pairs, and described 4 slave antennas differ 90 ° of configurations successively; Described method comprises step:
Radar detection spatial domain is divided into 2 combined transmit districts and 2 public crossover regions by the array mode of described 4 slave antennas, and described 4 slave antennas are simultaneously to air-launched wave beam;
Receiving target echo, forms the consistent left-handed and dextrorotation passage of signal amplitude, and more left-handed and phasometer dextrorotation passage calculates the azimuth angle theta of target;
Carry out a mark and flight path data correlation and calculate, first use described azimuth angle theta and the flight path of some mark to carry out correlated judgment, if meet related request, upgrade flight path by described azimuth angle theta; If do not meet related request, carry out correlated judgment with flight path again after the position angle in a mark being become to θ+180 °, if now meet related request, upgrade flight path with azimuth angle theta+180 °;
Whether judgement meets with incoherent some mark of flight path the criterion of setting up flight path, carries out a mark agglomeration process if be not inconsistent; If met before setting up flight path, judge target region according to the described azimuth angle theta of a mark, close relevant antenna combination, calculate target true bearing angle.
2. method according to claim 1, is characterized in that, describedly radar detection spatial domain is divided into 2 combined transmit districts by the array mode of described 4 slave antennas and 2 public crossover regions comprise step:
The the second combined transmit district that radar detection spatial domain is divided into the first combined transmit district, third antenna and the combination of the 4th antenna of the first antenna and the combination of the second antenna obtains the second public crossover region between the first public crossover region, the second antenna and the third antenna between the first antenna and the 4th antenna simultaneously.
3. method according to claim 2, is characterized in that, the described described azimuth angle theta according to a mark judges target region, closes relevant antenna combination, calculates target true bearing angle and comprises step:
If target, in the first combined transmit district, region, is turn-offed third antenna and the 4th antenna within 3 frame periods, if still can receive the information of target, determine that target is in the first combined transmit district, the true bearing angle of target is θ; Otherwise, determine that target is in the second combined transmit district, the true bearing angle of target is θ+180 °;
If target, in the first public crossover region, is turn-offed the second antenna and third antenna within 3 frame periods, if still can receive the information of target, determine that target is in the first public crossover region, the true bearing angle of target is θ; Otherwise, determine that target is in the second public crossover region, the true bearing angle of target is θ+180 °;
If target is in the second public crossover region, equally within 3 frame periods, turn-off the second antenna and third antenna, if still can receive the information of target, determine that target is in the first public crossover region, the true bearing angle of target is θ+180 °, otherwise, determine that target is in the second public crossover region, the true bearing angle of target is θ.
4. according to the method described in any one in claim 1-3, it is characterized in that, in described method, form the consistent left-handed and dextrorotation passage of signal amplitude through synthetic processing of passage.
5. according to the method described in any one in claim 1-3, it is characterized in that, whether incoherent some mark of described judgement and flight path meets the criterion of setting up flight path and comprises step:
The point mark information that judges whether to receive same target within the multiframe cycle, if it is meets; Otherwise do not meet.
6. the omnidirectional's radar angle measurement system based on rotating-field antenna, is characterized in that, described omnidirectional radar comprises independently emitting antenna of 4 pairs, and described 4 slave antennas differ 90 ° of configurations successively; Described system comprises:
Module is divided in spatial domain, and for radar detection spatial domain is divided into 2 combined transmit districts and 2 public crossover regions by the array mode of described 4 slave antennas, described 4 slave antennas are simultaneously to air-launched wave beam;
Measuring angle by comparing amplitude module, for receiving target echo, forms the consistent left-handed and dextrorotation passage of signal amplitude, and more left-handed and phasometer dextrorotation passage calculates the azimuth angle theta of target;
Associated computing module, calculates for carrying out a mark and flight path data correlation, first uses described azimuth angle theta and the flight path of some mark to carry out correlated judgment, if meet related request, upgrades flight path by described azimuth angle theta; If do not meet related request, carry out correlated judgment with flight path again after the position angle in a mark being become to θ+180 °, if now meet related request, upgrade flight path with azimuth angle theta+180 °;
True angle measurement module, for judging with incoherent some mark of flight path whether meet the criterion of setting up flight path, carries out a mark agglomeration process if be not inconsistent; If met before setting up flight path, judge target region according to the described azimuth angle theta of a mark, close relevant antenna combination, calculate target true bearing angle.
7. system according to claim 6, is characterized in that, described spatial domain is divided module and further comprised:
Module is divided in region, the the second combined transmit district combining for radar detection spatial domain being divided into the first combined transmit district, third antenna and the 4th antenna of the first antenna and the combination of the second antenna obtains the second public crossover region between the first public crossover region, the second antenna and the third antenna between the first antenna and the 4th antenna simultaneously.
8. system according to claim 7, is characterized in that, described true angle measurement module further comprises:
Launch site angle measurement module, for in the time that preliminary judgement target is in the first combined transmit district, region, within 3 frame periods, turn-off third antenna and the 4th antenna, if still can receive the information of target, determine that target is in the first combined transmit district, the true bearing angle of target is θ; Otherwise, determine that target is in the second combined transmit district, the true bearing angle of target is θ+180 °;
The first crossover region angle measurement module, for in the time that preliminary judgement target is in the first public crossover region, within 3 frame periods, turn-off the second antenna and third antenna, if still can receive the information of target, determine that target is in the first public crossover region, the true bearing angle of target is θ; Otherwise, determine that target is in the second public crossover region, the true bearing angle of target is θ+180 °;
The second crossover region angle measurement module, for in the time that preliminary judgement target is in the second public crossover region, within 3 frame periods, turn-off the second antenna and third antenna, if still can receive the information of target, determine that target is in the first public crossover region, the true bearing angle of target is θ+180 °, otherwise, determine that target is in the second public crossover region, the true bearing angle of target is θ.
9. according to the system described in any one in claim 6-8, it is characterized in that, in described measuring angle by comparing amplitude module, form the consistent left-handed and dextrorotation passage of signal amplitude through synthetic processing of passage.
10. according to the system described in any one in claim 6-8, it is characterized in that, in described true angle measurement module, judge whether to receive the some mark information of same target within the multiframe cycle, if it is meet the criterion of setting up flight path; Otherwise do not meet.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993220A (en) * | 2015-06-12 | 2015-10-21 | 四川九洲电器集团有限责任公司 | Rotating-field-type omnidirectional antenna, low-altitude short-range radar system and signal processing method |
| CN110209988A (en) * | 2019-05-05 | 2019-09-06 | 中国人民解放军63921部队 | The method and apparatus for determining antenna noise temperature caused by spherical shape black body radiation |
| CN111682303A (en) * | 2020-05-09 | 2020-09-18 | 四川九洲电器集团有限责任公司 | Common-aperture full-airspace coverage antenna |
| CN113820687A (en) * | 2021-10-19 | 2021-12-21 | 中安锐达(北京)电子科技有限公司 | Radar point track correlation algorithm considering first-order velocity ambiguity |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2349436A1 (en) * | 1998-11-04 | 2000-05-11 | Checkpoint Systems, Inc. | Rotating field antenna with a magnetically coupled quadrature loop |
| CN102520398A (en) * | 2011-12-20 | 2012-06-27 | 四川九洲电器集团有限责任公司 | Broadband amplitude monopulse system secondary radar monopulse angle measurement visualization method |
-
2014
- 2014-09-10 CN CN201410458047.2A patent/CN104200112B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2349436A1 (en) * | 1998-11-04 | 2000-05-11 | Checkpoint Systems, Inc. | Rotating field antenna with a magnetically coupled quadrature loop |
| CN102520398A (en) * | 2011-12-20 | 2012-06-27 | 四川九洲电器集团有限责任公司 | Broadband amplitude monopulse system secondary radar monopulse angle measurement visualization method |
Non-Patent Citations (1)
| Title |
|---|
| 张鑫 等: "毫米波超近程LFMCW雷达运动目标参数估计", 《现代雷达》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993220A (en) * | 2015-06-12 | 2015-10-21 | 四川九洲电器集团有限责任公司 | Rotating-field-type omnidirectional antenna, low-altitude short-range radar system and signal processing method |
| CN104993220B (en) * | 2015-06-12 | 2018-11-16 | 四川九洲电器集团有限责任公司 | Rotating field formula omnidirectional antenna, low altitude short range radar system and signal processing method |
| CN110209988A (en) * | 2019-05-05 | 2019-09-06 | 中国人民解放军63921部队 | The method and apparatus for determining antenna noise temperature caused by spherical shape black body radiation |
| CN110209988B (en) * | 2019-05-05 | 2022-11-25 | 中国人民解放军63921部队 | Method and apparatus for determining antenna noise temperature due to spherical blackbody radiation |
| CN111682303A (en) * | 2020-05-09 | 2020-09-18 | 四川九洲电器集团有限责任公司 | Common-aperture full-airspace coverage antenna |
| CN113820687A (en) * | 2021-10-19 | 2021-12-21 | 中安锐达(北京)电子科技有限公司 | Radar point track correlation algorithm considering first-order velocity ambiguity |
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