CN109444835A - A kind of receiving channel self checking method and system based on standing wave reflection - Google Patents
A kind of receiving channel self checking method and system based on standing wave reflection Download PDFInfo
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- CN109444835A CN109444835A CN201811363575.4A CN201811363575A CN109444835A CN 109444835 A CN109444835 A CN 109444835A CN 201811363575 A CN201811363575 A CN 201811363575A CN 109444835 A CN109444835 A CN 109444835A
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- receiving channel
- transmitter
- control code
- gain control
- self
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 210000000056 organ Anatomy 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4008—Means for monitoring or calibrating of parts of a radar system of transmitters
-
- 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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4021—Means for monitoring or calibrating of parts of a radar system of receivers
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a kind of receiving channel self checking methods and system based on standing wave reflection.The block switch of receiving channel is set to occlusion in transmitter-off first and obtains the gain control code of receiving channel at this time by the method, then the block switch of receiving channel is set to conducting in transmitter-on and obtains the gain control code of receiving channel at this time, the result that finally difference of the gain control code of the receiving channel according to transmitter-on and when shutting down carries out threshold judgement, exports receiving channel self-test.The characteristics of present invention must open transmitter when carrying out transmitter self-test project using radar seeker, standing wave by detecting the transmission power that receiving channel receives reflects signal, has reached and has examined the whether normal purpose of receiving channel automatically in the case where no cooperative target.Both the time that receiving channel carries out a large amount of signal processings, saves self-test had been avoided, artificial complex operations has been in turn avoided and corollary equipment is equipped with cooperative target, saves cost of human and material resources.
Description
Technical field
The present invention relates to a kind of receiving channel self checking methods and system based on standing wave reflection.
Background technique
Verify that radar seeker whether there is hardware fault when in order to before MISSILE LAUNCHING, ground test, it is problematic most
The early discovery of amount, early solution reduce loss as much as possible, improve success rate, and usual radar seeker needs to have self-checking function, especially
It is to carry out self-test to transmitter and receiving channel.
Common transmitter and the self checking method of receiving channel are that timesharing successively carries out self-test to transmitter and receiving channel,
And cooperative target is needed when receiving channel self-test.Firstly, timesharing successively carries out self-test to transmitter and receiving channel, compared to
Self-test is carried out simultaneously, needs to spend twice of time.Secondly, needing cooperative target when receiving channel self-test, usually wave is being inhaled
One pyramidal horn antenna is installed and connects radar seeker as cooperative target, by radio-frequency cable in the top of cover or missile shell
Output drive signal and pyramidal horn antenna, to guarantee that radar seeker is able to detect that target in signal processing, with this
Judge whether the receiving channel of radar seeker is normal.Such test method needs the artificial company's make and break for carrying out radio-frequency cable
Open, and need to inhale wave cover or missile shell installation cooperative target, not only occupied human resources but cause the hardware of corollary equipment at
Originally it raises.
Summary of the invention
It is an object of that present invention to provide a kind of receiving channel self checking methods based on standing wave reflection, solve receiving channel self-test
The problem of be unableing to do without cooperative target.
In view of this, present invention provide the technical scheme that it is a kind of based on standing wave reflection receiving channel self checking method,
It is characterized in that, comprising:
The block switch of receiving channel is set to occlusion in transmitter-off and obtains the gain of receiving channel at this time
Control code；
The block switch of receiving channel is set to conducting in transmitter-on and obtains the gain of receiving channel at this time
Control code；
The difference of the gain control code of receiving channel when according to transmitter-on and shutdown carries out threshold judgement, and output connects
Receive the result of channel self-test.
Another object of the present invention is to provide a kind of receiving channel self-checking system based on standing wave reflection, feature exists
In, comprising:
First processing units, for the block switch of receiving channel to be set to occlusion in transmitter-off and is obtained at this time
Receiving channel gain control code；
The second processing unit, for the block switch of receiving channel to be set to conducting in transmitter-on and is obtained at this time
Receiving channel gain control code；
Control output unit, for according to transmitter-on and shutdown when receiving channel gain control code difference into
Row threshold judgement exports the result of receiving channel self-test.
The present invention realize it is following significant the utility model has the advantages that
It realizes simple, the block switch of receiving channel is set to occlusion in transmitter-off first and obtains connecing at this time
The gain control code in channel is received, the block switch of receiving channel is then set to conducting in transmitter-on and is obtained at this time
The gain control code of receiving channel, finally according to transmitter-on and shutdown when receiving channel gain control code difference into
Row threshold judgement, the result for exporting receiving channel self-test.It must when the present invention is using radar seeker progress transmitter self-test project
The characteristics of transmitter must be opened, the standing wave by detecting the transmission power that receiving channel receives reflect signal, and having reached is not having
Automatically the whether normal purpose of receiving channel is examined in the case where cooperative target.Both receiving channel had been avoided to carry out at a large amount of signals
The time for managing, saving self-test in turn avoids artificial complex operations and corollary equipment is equipped with cooperative target, saves manpower and object
Power cost.
Detailed description of the invention
Fig. 1 is a kind of receiving channel self checking method flow chart based on standing wave reflection of the invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments, is wanted according to following explanation and right
Book is sought, advantages and features of the invention will become apparent from.It should be noted that attached drawing is all made of very simplified form and is applicable in
Non-accurate ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
It should be noted that present invention spy is for multiple embodiments with further in order to clearly demonstrate the contents of the present invention
Illustrate different implementations of the invention, wherein multiple embodiment is enumeration and non-exhaustive.In addition, in order to illustrate
Succinctly, the content having been mentioned in preceding embodiment is often omitted in rear embodiment, therefore, unmentioned interior in rear embodiment
Appearance can accordingly refer to preceding embodiment.
Although the invention can modification in a variety of forms and replacement extend, also listed in specification some specific
Implement legend and is described in detail.It should be understood that the starting point of inventor is not that the invention is limited to illustrated spy
Determine embodiment, antithesis, the starting point of inventor is to protect in all spirit or scope given and defined by this rights statement
The improvement of progress, equivalent alterations and modifications.Same component number is likely to be used for all attached drawings to represent identical or class
As part.
Please refer to Fig. 1, a kind of receiving channel self checking method based on standing wave reflection of the invention, comprising: step S101,
The block switch of receiving channel is set to occlusion when transmitter-off and obtains the gain control code of receiving channel at this time；Step
S102, is set to conducting for the block switch of receiving channel in transmitter-on and the gain for obtaining receiving channel at this time controls
Code；The difference of step S103, the gain control code of receiving channel when according to transmitter-on and shutdown carry out threshold judgement, defeated
The result of receiving channel self-test out.
In one embodiment, described that the block switch of receiving channel is set to occlusion in transmitter-off and obtains this
When receiving channel gain control code include: obtain only have noise when receiving channel gain control code AGC value.
In one embodiment, described that the block switch of receiving channel is set to conducting in transmitter-on and obtains this
When receiving channel gain control code include: obtain have transmission power standing wave reflection signal when receiving channel gain control
Code AGC value processed.
In one embodiment, the difference of the gain control code of the receiving channel according to transmitter-on and when shutting down
Threshold judgement is carried out, the result of output receiving channel self-test includes: the increasing of receiving channel when judging transmitter-on and shutdown
Whether the difference DELTA of beneficial control code AGC is greater than threshold deltath, if more than thresholding, then export receiving channel self-detection result be it is normal, it is no
It is abnormal for then exporting receiving channel self-detection result.
In one embodiment, the threshold deltathThe occlusion amount set by the block switch of receiving channel determines.
The present invention also provides a kind of receiving channel self-checking systems based on standing wave reflection, comprising: first processing units are used for
The block switch of receiving channel is set to occlusion in transmitter-off and obtains the gain control code of receiving channel at this time；The
Two processing units, for the block switch of receiving channel to be set to conducting and the receiving channel of acquisition at this time in transmitter-on
Gain control code；Output unit is controlled, the gain control code of receiving channel when for according to transmitter-on and shutdown
Difference carries out threshold judgement, exports the result of receiving channel self-test.
In one embodiment, the first processing units include trigger module and the first input module, first touching
Hair module is for being set to occlusion for the block switch of receiving channel in transmitter-off；First input module is for obtaining
Only noise when receiving channel gain control code AGC value.
In one embodiment, described the second processing unit includes the second trigger module and the second input module, and described the
Two trigger modules are for being set to conducting for the block switch of receiving channel in transmitter-on；Second input module is used for
Obtain the gain control code AGC value of receiving channel when thering is the standing wave of transmission power to reflect signal.
In one embodiment, the control output unit includes judgment module, for according to first input module
The difference of the gain control code of the receiving channel obtained with second input module carries out threshold judgement.
In one embodiment, the judgment module is comparator.
As specific embodiment, a kind of specific steps of receiving channel self checking method based on standing wave reflection of the invention
Are as follows:
The block switch of receiving channel is set to occlusion in transmitter-off by the first step
When the transmitter-off of radar seeker, signal is not launched outward, does not generate the standing wave reflection signal of transmission power,
The block switch of receiving channel is set to blocked state, there was only noise in receiving channel.
Second step obtains the gain control code AGC value Δ of receiving channel in transmitter-offoff
When the transmitter-off of radar seeker, the gain control code AGC value of receiving channel when there was only noise is obtained,
The size of AGC value directly reflects that the AGC value when size, only noise of receives echo-signal power is minimum value.
The block switch of receiving channel is set to conducting in transmitter-on by third step
When the transmitter-on self-test of radar seeker, during emitting signal, most of transmission power passes through antenna spoke
It is mapped to exterior space, sub-fraction power is reflected into inside radar seeker in the form of standing wave.The power of standing wave is lower, will connect
The block switch for receiving channel is placed on state, not will cause hardware and burns.
4th step obtains the gain control code AGC value Δ of receiving channel in transmitter-onon
When the transmitter-on self-test of radar seeker, during emitting signal, obtaining has the standing wave of transmission power to reflect
The gain control code AGC value of receiving channel when signal.
The difference DELTA of the gain control code AGC of receiving channel when 5th step calculates transmitter-on and shuts down
The gain control code AGC value Δ of receiving channel when according to transmitter-ononIt is logical with reception when transmitter-off
The gain control code AGC value Δ in roadoffCalculate the difference DELTA of AGC, i.e. Δ=Δon-Δoff。
6th step threshold judgement simultaneously exports receiving channel self-detection result
Judge whether the difference DELTA of the gain control code AGC of receiving channel when transmitter-on and shutdown is greater than thresholding
Δth(the occlusion amount usually set by the block switch of receiving channel determines), if more than thresholding, then exports receiving channel self-detection result
To be normal, it is abnormal for otherwise exporting receiving channel self-detection result.
So far the receiving channel self checking method based on standing wave reflection is completed.
The present invention realize it is following significant the utility model has the advantages that
It realizes simple, the block switch of receiving channel is set to occlusion in transmitter-off first and obtains connecing at this time
The gain control code in channel is received, the block switch of receiving channel is then set to conducting in transmitter-on and is obtained at this time
The gain control code of receiving channel, finally according to transmitter-on and shutdown when receiving channel gain control code difference into
Row threshold judgement, the result for exporting receiving channel self-test.It must when the present invention is using radar seeker progress transmitter self-test project
The characteristics of transmitter must be opened, the standing wave by detecting the transmission power that receiving channel receives reflect signal, and having reached is not having
Automatically the whether normal purpose of receiving channel is examined in the case where cooperative target.Both receiving channel had been avoided to carry out at a large amount of signals
The time for managing, saving self-test in turn avoids artificial complex operations and corollary equipment is equipped with cooperative target, saves manpower and object
Power cost.
Obviously, the above embodiments are merely examples for clarifying the description, rather than the restriction to embodiment.For
For person of an ordinary skill in the technical field, other various forms of variations can also be made on the basis of the above description
Or it changes.There is no necessity and possibility to exhaust all the enbodiments.And obvious variation extended from this
Or change the protection scope for still falling within the invention.
Claims (10)
1. a kind of receiving channel self checking method based on standing wave reflection characterized by comprising
The block switch of receiving channel is set to occlusion in transmitter-off and the gain for obtaining receiving channel at this time controls
Code；
The block switch of receiving channel is set to conducting in transmitter-on and the gain for obtaining receiving channel at this time controls
Code；
The difference of the gain control code of receiving channel when according to transmitter-on and shutdown carries out threshold judgement, and output receives logical
The result of road self-test.
2. the receiving channel self checking method according to claim 1 based on standing wave reflection, which is characterized in that described to emit
The block switch of receiving channel is set to occlusion when organ's machine and the gain control code for obtaining receiving channel at this time includes: to obtain
Only noise when receiving channel gain control code AGC value.
3. the receiving channel self checking method according to claim 2 based on standing wave reflection, which is characterized in that described to emit
The block switch of receiving channel is set to conducting when machine is switched on and the gain control code for obtaining receiving channel at this time includes: to obtain
The gain control code AGC value of receiving channel when thering is the standing wave of transmission power to reflect signal.
4. the receiving channel self checking method according to claim 3 based on standing wave reflection, which is characterized in that described according to hair
The difference of the gain control code of receiving channel when penetrating machine startup and shutdown carries out threshold judgement, exports the knot of receiving channel self-test
Fruit includes: whether the difference DELTA of the gain control code AGC of receiving channel when judging transmitter-on and shutdown is greater than thresholding
Δth, if more than thresholding, then export receiving channel self-detection result be it is normal, it is abnormal for otherwise exporting receiving channel self-detection result.
5. the receiving channel self checking method according to claim 4 based on standing wave reflection, which is characterized in that the thresholding
ΔthThe occlusion amount set by the block switch of receiving channel determines.
6. a kind of receiving channel self-checking system based on standing wave reflection characterized by comprising
First processing units, for the block switch of receiving channel to be set to occlusion in transmitter-off and obtains connecing at this time
Receive the gain control code in channel；
The second processing unit, for the block switch of receiving channel to be set to conducting in transmitter-on and obtains connecing at this time
Receive the gain control code in channel；
Output unit is controlled, the difference of the gain control code of receiving channel when for according to transmitter-on and shutdown carries out door
Limit judgement, exports the result of receiving channel self-test.
7. the receiving channel self-checking system according to claim 6 based on standing wave reflection, which is characterized in that at described first
Reason unit includes trigger module and the first input module,
First trigger module is for being set to occlusion for the block switch of receiving channel in transmitter-off；
First input module is used to obtain the gain control code AGC value of receiving channel when there was only noise.
8. the receiving channel self-checking system according to claim 7 based on standing wave reflection, which is characterized in that at described second
It manages unit and includes the second trigger module and the second input module,
Second trigger module is for being set to conducting for the block switch of receiving channel in transmitter-on；
Second input module be used for obtains have transmission power standing wave reflect signal when receiving channel gain control code
AGC value.
9. the receiving channel self-checking system according to claim 8 based on standing wave reflection, which is characterized in that the control is defeated
Unit includes judgment module out, the receiving channel for being obtained according to first input module and second input module
The difference of gain control code carries out threshold judgement.
10. the receiving channel self-checking system according to claim 9 based on standing wave reflection, which is characterized in that the judgement
Module is comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811363575.4A CN109444835A (en) | 2018-11-16 | 2018-11-16 | A kind of receiving channel self checking method and system based on standing wave reflection |
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| CN201811363575.4A CN109444835A (en) | 2018-11-16 | 2018-11-16 | A kind of receiving channel self checking method and system based on standing wave reflection |
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Application publication date: 20190308 |