CN106597433A - Low-altitude monitoring radar - Google Patents
Low-altitude monitoring radar Download PDFInfo
- Publication number
- CN106597433A CN106597433A CN201611259511.0A CN201611259511A CN106597433A CN 106597433 A CN106597433 A CN 106597433A CN 201611259511 A CN201611259511 A CN 201611259511A CN 106597433 A CN106597433 A CN 106597433A
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- Prior art keywords
- signal
- extension set
- phased array
- antenna
- control
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Classifications
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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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
-
- 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
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention, which belongs to the technical field of the radar, discloses a low-altitude monitoring radar comprising a processing extension unit, a one-dimensional phased-array antenna extension unit and a servo extension unit. The processing extension unit sends a control signal to the one-dimensional phased-array antenna extension unit; the one-dimensional phased-array antenna extension unit receives the control signal; according to the control signal, a linear frequency-modulation pulse signal is sent to a T/R assembly; power amplification is carried out on the received linear frequency-modulation pulse signal and the processed signal is transmitted to an antenna array plane; a radio-frequency signal is transmitted outwardly to the antenna array plane; the servo extension unit controls the one-dimensional phased-array antenna extension unit to carry out azimuth scanning; the one-dimensional phased-array antenna extension unit sends the received signal to the processing extension unit; and the processing extension unit receives the received signal and processed the received signal. Therefore, problems of many T/R assemblies in the two-dimensional phased-array antenna extension unit and complicated radio-frequency beam forming can be solved; and thus effects of T/R assembly number reduction, complexity of radio-frequency beam forming reduction, and radar cost lowering can be realized.
Description
Technical field
The present embodiments relate to Radar Technology field, more particularly to a kind of low-altitude surveillance radar.
Background technology
As the propulsion of low altitude airspace administrative reform, unmanned plane, dalta wing, paraglider, fire balloon, model plane etc. fly
Highly low, small volume, slow-footed all purpose aircraft quantity continue to increase, and the monitoring and control to all purpose aircraft increased difficulty
Degree.
In prior art, generally adopt and used the radar that two-dimentional electricity sweeps phased-array technique to supervise all purpose aircraft
Control.Two-dimentional electricity has been used to sweep using two dimensional phased array in the phased array antenna of the radar of phased-array technique, by digital beam
Formation technology adjusts rapidly angle of the scanning beam in orientation and pitch orientation, and electric scanning speed is scanned far above traditional mechanical
Radar, realizes the quick detection to covering spatial domain moving target and tracking.
But, used two-dimentional electricity to sweep T/R (Transmitter in the two dimensional phased array in the radar of phased-array technique
And Receiver, transmitting and receive) component count is more, feeding network and Wave beam forming are complicated.
The content of the invention
In order to solve problem of the prior art, a kind of low-altitude surveillance radar is embodiments provided.The technical scheme
It is as follows：
First aspect, there is provided a kind of low-altitude surveillance radar, the low-altitude surveillance radar includes：Process extension set, one-dimensional phased
Array antenna extension set and servo extension set；
The One-dimension Phased Array antenna extension set at least includes ripple control machine unit, sends reception T/R components, antenna array；
The process extension set at least includes circuit back panel and signal-processing board, and the signal-processing board is arranged on the circuit
On backboard；
The process extension set, for utilizing the circuit back panel by the signal-processing board, to the One-dimension Phased Array
Antenna extension set sends control signal；
The One-dimension Phased Array control antenna extension set, for receiving the control signal by the ripple control machine unit；
The One-dimension Phased Array control antenna extension set, for by the ripple control machine unit according to the control signal to described
T/R components send chirp pulse signal；
The One-dimension Phased Array control antenna extension set, for controlling the T/R components to receiving by the ripple control machine unit
To the chirp pulse signal carry out power amplification, and by the chirp pulse signal after power amplification
Transmit to the antenna array；
The One-dimension Phased Array control antenna extension set, for by the antenna array according to power amplification after it is described linear
Chirp signal is to emission radiofrequency signal；
The servo extension set, for controlling the One-dimension Phased Array antenna extension set azimuth scan is carried out；
The One-dimension Phased Array control antenna extension set, for receiving reflected signal, the reflection letter by the antenna array
Number it is signal that the radiofrequency signal is subject to be formed after the reflection of testee；
The One-dimension Phased Array control antenna extension set, for generating according to the reflected signal signal is received, and is connect described
The collection of letters number is sent to the process extension set；
The process extension set, for receiving the reception signal, and is processed the reception signal, obtains the quilt
Survey the flight information of object, the flight information include the testee apart from the distance of the low-altitude surveillance radar, speed,
At least one in orientation angles, luffing angle.
Optionally, the servo extension set at least includes slip ring；
The process extension set, for utilizing the circuit back panel and the slip ring by the signal-processing board, to institute
State ripple control machine unit and send control signal.
Optionally, the One-dimension Phased Array antenna extension set also includes Frequency Synthesizer and feed element；
The One-dimension Phased Array control antenna extension set, according to the control signal, is controlled for by the ripple control machine unit
The Frequency Synthesizer generates the chirp pulse signal；
The One-dimension Phased Array control antenna extension set, for by the feed element by the chirp pulse signal work(
T/R components described in Fen Zhixiangge roads.
Optionally, the One-dimension Phased Array antenna extension set also includes two-channel receiver, and the reception signal includes and road
Intermediate-freuqncy signal and difference road intermediate-freuqncy signal；
The One-dimension Phased Array control antenna extension set, for amplifying the reflected signal by the T/R components, and will amplify
The reflected signal afterwards is sent to the feed element；
The One-dimension Phased Array control antenna extension set, for by the feed element to amplification after the reflected signal enter
Row work(is closed, and obtains described and road intermediate-freuqncy signal and the poor road intermediate-freuqncy signal；
The One-dimension Phased Array antenna extension set, for by the feed element by described and road intermediate-freuqncy signal and the difference
Road intermediate-freuqncy signal is sent to the two-channel receiver；
The One-dimension Phased Array control antenna extension set, for by the two-channel receiver to described and road intermediate-freuqncy signal and
The poor road intermediate frequency number is carried out after down-converted, and by described in after down-converted and road intermediate-freuqncy signal and the difference
Road intermediate-freuqncy signal is sent to the process extension set.
Optionally, the servo extension set also includes triple channel joint；
The One-dimension Phased Array control antenna extension set, for the reception signal being sent to institute using the triple channel joint
State process extension set.
Optionally, the process extension set also includes AD sampling plates, and the AD sampling plates are arranged on the circuit back panel；
The process extension set, for described and road intermediate-freuqncy signal and the poor road intermediate-freuqncy signal work(to be divided to two AD
Sampling plate；
The process extension set, for passing through two AD sampling plates by described and road intermediate-freuqncy signal and the poor road intermediate frequency
Signal is transformed to two digital signals；
The process extension set, for being processed two digital signals respectively by the signal-processing board, is obtained
To the flight information of the testee.
Optionally, the servo extension set also includes motor, electric machine controller and motor power；
The one-dimensional antenna phased array extension set also includes antenna power unit；
The process extension set also includes radar power supply；
The radar power supply, for being that the motor power and the antenna power unit are powered；
The antenna power unit, for powering for the unit in the one-dimensional phase battle array control extension set；
The motor power, for powering for the motor；
The motor, for driving slip ring and the rotation of triple channel joint；
The motor, is additionally operable to drive the One-dimension Phased Array antenna extension set to rotate by conduction mechanism；
The electric machine controller, for receiving the motor control signal that the process extension set sends, according to the motor control
Signal processed drives the motor.
Optionally, the One-dimension Phased Array antenna extension set also includes Frequency Synthesizer；
The Frequency Synthesizer, is additionally operable to provide local oscillation signal and block signal for the two-channel receiver；
The local oscillation signal is the mixing local vibration source of the double reception passage down coversion, and the block signal is used to control institute
State two-channel receiver to be turned on and off according to scheduled timing relationship.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
By using One-dimension Phased Array antenna extension set, servo extension set and processing extension set, from process extension set to one-dimensional phased
Array antenna extension set sends control signal, and One-dimension Phased Array antenna extension set is sent out radiofrequency signal, servo point according to control signal
Machine drives One-dimension Phased Array antenna extension set to carry out azimuth scan, solves in prior art T/R in two dimensional phased array antenna extension set
The quantity of component is more, and radio frequency beam forms the problem of complexity, and having reached reduces the quantity of T/R components, lowers radio frequency beam shape
Into complexity, reduce radar cost effect.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structured flowchart of the low-altitude surveillance radar according to an exemplary embodiment；
Fig. 2 is a kind of structural representation of the application scenarios of the low-altitude surveillance radar according to an exemplary embodiment.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 schematically illustrates a kind of structured flowchart of low-altitude surveillance radar.As shown in figure 1, the low-altitude surveillance radar
Including：One-dimension Phased Array antenna extension set 100, process extension set 200 and servo extension set 300；
One-dimension Phased Array antenna extension set 100 at least includes ripple control machine unit 130, T/R (Transmitter and
Receiver, send receive) component 122, antenna array 121.
Optionally, T/R components are at least all the way.
Processing extension set 200 at least includes circuit back panel 240 and signal-processing board 221, and signal-processing board 221 is arranged on circuit
On backboard 240.
Extension set 200 is processed, for utilizing circuit back panel 240 by signal-processing board 221, to One-dimension Phased Array antenna extension set
Send out 100 and send control signal.
Optionally, circuit back panel 240 is connected with ripple control machine unit 130 by RS422 buses.
Optionally, process extension set 200 and send control signal to ripple control machine unit 130.
One-dimension Phased Array control antenna extension set 100, for receiving control signal by ripple control machine unit 130.
One-dimension Phased Array control antenna extension set 100, for passing through ripple control machine unit 130 according to control signal to T/R components 122
Send chirp pulse signal 23.
Ripple control machine unit 130 is pointed to according to the pitching of control signal and antenna beam and requires each road T/R components 122 of control
Phase shift and decay.
Ripple control machine unit is realized using ripple control machine hardware and ripple control algorithm.Specifically, ripple control machine hardware is by FPGA
(Field Programmable Gate Array, field programmable gate array) chip and NOR FLASH (nonvolatile flash memory) are deposited
Storage chip composition, fpga chip is mainly used in completing the phase shift and decay of T/R components, and NOR FLASH storage chips are used to deposit
Phase information is matched somebody with somebody in storage.
Low-altitude surveillance radar provided in an embodiment of the present invention adopts X-band working frequency range, by using in the cloth that pitches up
Ripe X-band dual pathways T/R component is set to, using ripple control machine hardware and ripple control algorithm, pitching up quick electric scanning is carried out,
Realize the quick detection to covering spatial domain target.
One-dimension Phased Array control antenna extension set 100, for controlling what T/R components 122 pairs were received by ripple control machine unit 130
Chirp pulse signal 23 carries out power amplification, and the chirp pulse signal 23 after power amplification is transmitted to day
Linear array face 121.
One-dimension Phased Array control antenna extension set 100, for by antenna array 121 according to the linear frequency modulation arteries and veins after power amplification
Signal 23 is rushed to emission radiofrequency signal.
Servo extension set 300, for controlling One-dimension Phased Array antenna extension set 100 azimuth scan is carried out.
The control One-dimension Phased Array antenna of servo extension set 300 extension set 100 carries out the covering of 360 degrees omnidirection spatial domain.
Optionally, servo extension set 300 provides various scanning demands, and such as ring is swept or fan sweeping, it is possible to achieve 120 degree, 180 degree,
270 degree, 360 degree of rings sweep.
One-dimension Phased Array control antenna extension set 100, for receiving reflected signal by antenna array 121, reflected signal is to penetrate
Frequency signal is subject to the signal formed after the reflection of testee.
One-dimension Phased Array control antenna extension set 100, for generating according to reflected signal signal is received, and will receive signal transmission
To process extension set 200.
Optionally, receiving signal includes and road intermediate-freuqncy signal and difference road intermediate-freuqncy signal.
Extension set 200 is processed, is processed for receiving signal, and docking the collection of letters number, obtain the flight of testee
Information, flight information includes testee in distance, speed, orientation angles, the luffing angle of low-altitude surveillance radar extremely
Few one kind.
Processing the extension set docking collection of letters number carries out correlative accumulation, two dimension CFAR (Constant false alarm rate, perseverance
False alarm rate) target detection, TWS (Track-While-Scan is tracked in scanning) signal processing and the data such as multiple target tracking
Treatment technology, radar can be detected and tracked to aerial all kinds of targets automatically, and movement locus and trend to target and
Tracking and prediction.
It should be noted that the unit or component in One-dimension Phased Array antenna extension set is by wired or wireless connection.
In sum, low-altitude surveillance radar provided in an embodiment of the present invention, by using One-dimension Phased Array antenna extension set, watch
Take extension set and process extension set, from process extension set to One-dimension Phased Array antenna extension set control signal, One-dimension Phased Array antenna are sent
Extension set is sent out radiofrequency signal according to control signal, and servo extension set drives One-dimension Phased Array antenna extension set to carry out azimuth scan,
The quantity for solving T/R components in two dimensional phased array antenna extension set in prior art is more, and radio frequency beam forms the problem of complexity,
Having reached reduces the quantity of T/R components, lowers the complexity that radio frequency beam is formed, and reduces the effect of the cost of radar.
As shown in figure 1, servo extension set 300 at least includes slip ring 310.
Specifically, extension set is processed by signal-processing board 221 using circuit back panel 240 and slip ring 310, to ripple control machine list
Unit 130 sends control signal.
One-dimension Phased Array antenna extension set 100 also includes Frequency Synthesizer 141 and feed element 123.One-dimension Phased Array antenna extension set
100 also include two-channel receiver 142.Wherein, Frequency Synthesizer 141 and two-channel receiver 142 are constituted and receive the comprehensive unit 140 of frequency.
Ripple control machine unit 130 sends the comprehensive control signal 22 of reception frequency, control according to control signal to the comprehensive unit 140 of frequency is received
Frequency Synthesizer 141 and two-channel receiver 142, including control working frequency points, frequency hopping, waveform parameter etc..
Specifically, One-dimension Phased Array antenna extension set 100 is used for by ripple control machine unit 130 according to control signal, control frequency
Comprehensive device 141 generates chirp pulse signal 23；One-dimension Phased Array antenna extension set 100 is additionally operable to line by feed element 123
Property chirp signal 23 sends to each road T/R components 122.
Wherein, feed element 123 includes circulator and combiner, chirp pulse signal 23 after circulator,
Again feeding network is sent into by combiner Zhong He roads.
Wherein, Frequency Synthesizer 141 is that dual channel receiver extension set 142 provides local oscillation signal 42 and block signal 41；Local oscillation signal
42 is the mixing local vibration source of double reception passage down coversion；Block signal 41 is used to control two-channel receiver according to predetermined timed-shutoff
System is turned on and off, namely block signal 41 controls two-channel receiver according to scheduled timing relationship in the mistake for launching radiofrequency signal
Receiving channel is opened in journey, transmitting process is carried out, or, block signal 41 controls two-channel receiver according to scheduled timing relationship
Receiving channel is closed during transmitting radiofrequency signal, reception processing is carried out.
Reflected signal is formed after radiofrequency signal is subject to the reflection of testee, reflected signal is along the contrary biography of radiofrequency signal
Defeated direction transmission.
One-dimension Phased Array antenna extension set 100 receives reflected signal by antenna array 121, is amplified instead by T/R components 122
Signal is penetrated, and the reflected signal after amplification is sent to feed element 123.
One-dimension Phased Array antenna extension set 100, will be with road intermediate-freuqncy signal and difference road intermediate-freuqncy signal for passing through feed element 123
Send to two-channel receiver 142.
Specifically, the reflected signal after amplification sends into combiner after being closed by the feeding network work(in feed element 123, and poor
Qi Jianghe roads intermediate-freuqncy signal 25 and difference road intermediate-freuqncy signal 26 separate, and send to two-channel receiver 142.
One-dimension Phased Array control antenna extension set 100, for by two-channel receiver 142 pairs and road intermediate-freuqncy signal 25 and difference road
Intermediate frequency number 26 is carried out after down-converted, and will be through down-converted Hou He road intermediate-freuqncy signal 25 and difference road intermediate-freuqncy signal 26
Send to process extension set 200.
Servo extension set 300 also includes triple channel joint 320.
One-dimension Phased Array control antenna extension set 100, sends to process extension set for receiving signal using triple channel joint 320
200。
Specifically, dual pathways extension set 142 will be through down-converted Hou He road intermediate-freuqncy signal using triple channel joint 320
25 send to process extension set 200 with difference road intermediate-freuqncy signal 26.
Processing extension set 200 also includes two AD sampling plates, respectively AD sampling plates 211 and AD sampling plates 212, and two AD are adopted
Model is arranged on circuit back panel 240.The quantity for processing the signal-processing board in extension set 200 is two.
Extension set is processed, for being divided to two AD sampling plates with road intermediate-freuqncy signal and difference road intermediate-freuqncy signal work(.
Specifically, process the Qiang He roads intermediate-freuqncy signal of extension set 200 to send to AD sampling plates 211, difference road intermediate-freuqncy signal is sent
To AD sampling plates 212.
Extension set is processed, for by two AD sampling plates two numbers will to be transformed to road intermediate-freuqncy signal and difference road intermediate-freuqncy signal
Word signal.
Specifically, AD sampling plates 211 will be transformed to digital signal with road intermediate-freuqncy signal 25, and send to signal-processing board
221；AD sampling plates 212 will be transformed to digital signal with road intermediate-freuqncy signal 26, and send to signal-processing board 222.
Extension set is processed, for processing two digital signals respectively by signal-processing board, testee is obtained
Flight information.
As shown in figure 1, servo extension set 300 also includes motor 350, electric machine controller 340 and motor power 330.
One-dimensional antenna phased array extension set 200 also includes antenna power unit 110.
Processing extension set 200 also includes radar power supply 230；Radar power supply 230 is arranged on circuit back panel 240, by outside
220V alternating current power supplys are powered for radar power supply 230.
Radar power supply 230, for being that motor power 330 and antenna power unit 110 are powered.
Antenna power unit 110, for powering for the unit in one-dimensional phase battle array control antenna extension set 100.
Motor power 330, for powering for motor 350.
Motor 340, for driving slip ring 310 and triple channel joint 320 to rotate.Wherein, slip ring is used to realize power supply
And the sound conversion of control signal, triple channel joint is used to realize the sound conversion of radiofrequency signal.
Motor 350, is additionally operable to drive One-dimension Phased Array antenna extension set 100 to rotate by conduction mechanism.
Electric machine controller 340, for the motor control signal 31 that reception processing extension set 200 sends, believes according to motor control
Number 31 drive stepping motor 350.
Optionally, in the alternative embodiment based on embodiment as shown in Figure 1, processing extension set 200 can also pass through wired
Network or wireless network are connected with control centre 400, process extension set 200 and report testee data, tested to control centre 400
Object risk assessment information etc., and in the controlling in the heart 400 to showing that radar is believed on the aobvious control picture of low-altitude surveillance radar
Breath.
Optionally, low-altitude surveillance radar can also receive the STATUS control commands that control centre 400 intends by network.
Low-altitude surveillance radar provided in an embodiment of the present invention carries out measured object by coherent system, pulse Doppler processing mode
The detection of body.Low-altitude surveillance radar adopts 5 heavy MPRF ((Medium Pulse Repetition Frequency, middle pulse weights
Complex frequency) waveform, velocity ambiguity and range ambiguity when efficiently solving the problems, such as to measure testee.
By the way that using One-dimension Phased Array antenna system, pitching is mechanical with reference to orientation to sweeping ± 30 ° of scopes of covering by electricity
Scanning effectively covers low clearance area；Using Doppler to FFT (Fast Fourier Transformation, discrete fourier transform
Fast algorithm) and the two dimension technology such as CFAR and doppler filtering, it is good to the Effect on Detecting of target at a slow speed；One-dimension Phased Array antenna
Antenna element in extension set by the comprehensive unit of frequency is received and including antenna array, T/R components, feed element carries out integrated design,
System loss is little, improves the detection performance to Small object echo.So as to can effectively detect and track low-altitude low-velocity small targets.
Low-altitude surveillance radar provided in an embodiment of the present invention can be detected and tracked to aerial all kinds of targets automatically,
And the movement locus and trend to target are tracked and predict.In monitoring process, without the need for scope head's observation on duty, nothing
Need artificial judgment, identification and track, and with extremely low false-alarm/false dismissal probability, target is positioned and tracking accuracy is higher.
Low-altitude surveillance radar provided in an embodiment of the present invention by taking above-mentioned design, radar system can reach as
Under performance indications：
1st, operating distance (Pc=0.8, average false alarm rate is not more than 1 flight path/min)：To RCS (Radar Cross-
Section, Radar Cross Section) >=5m2Aerial target (such as helicopter) operating distance：29km；To RCS >=0.1m2Sky
Small Target (SUAV) operating distance：11km.
2nd, minimum detectable target radial speed (absolute value)：5m/s.
3rd, the scope that tests the speed is not obscured：±200m/s.
4th, antenna bearingt sweep speed：30 °～40 °/s.
5th, azimuth scan scope：Fan sweeping or ring sweep optional, respectively 120 °, 180 °, 270 °, 360 °.
6th, pitching electricity sweeps wave beam maximum magnitude：± 30 ° (with respect to front center).
7th, apart from range：32km.
8th, radar detection blind area：≤600m.
9th, range resolution ratio：≤30m.
10th, altimetry precision：In the distance of 10km, better than 300m.
One of ordinary skill in the art will appreciate that realizing that all or part of above-described embodiment can be by hardware come complete
Into, it is also possible to the hardware that correlation is instructed by program is completed, and described program can be stored in a kind of computer-readable storage
In medium, storage medium mentioned above can be read only memory, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. a kind of low-altitude surveillance radar, it is characterised in that include：Process extension set, One-dimension Phased Array antenna extension set and servo extension set；
The One-dimension Phased Array antenna extension set at least includes ripple control machine unit, sends reception T/R components, antenna array；
The process extension set at least includes circuit back panel and signal-processing board, and the signal-processing board is arranged on the circuit back panel
On；
The process extension set, for utilizing the circuit back panel by the signal-processing board, to the One-dimension Phased Array antenna
Extension set sends control signal；
The One-dimension Phased Array control antenna extension set, for receiving the control signal by the ripple control machine unit；
The One-dimension Phased Array control antenna extension set, for by the ripple control machine unit according to the control signal to the T/R
Component sends chirp pulse signal；
The One-dimension Phased Array control antenna extension set, for controlling the T/R components to receiving by the ripple control machine unit
The chirp pulse signal carries out power amplification, and the chirp pulse signal after power amplification is transmitted
To the antenna array；
The One-dimension Phased Array control antenna extension set, for by the antenna array according to power amplification after the linear frequency modulation
Pulse signal is to emission radiofrequency signal；
The servo extension set, for controlling the One-dimension Phased Array antenna extension set azimuth scan is carried out；
The One-dimension Phased Array control antenna extension set, for receiving reflected signal by the antenna array, the reflected signal is
The radiofrequency signal is subject to the signal formed after the reflection of testee；
The One-dimension Phased Array control antenna extension set, for generating according to the reflected signal signal is received, and described reception is believed
Number send to the process extension set；
The process extension set, for receiving the reception signal, and is processed the reception signal, obtains the measured object
The flight information of body, the flight information includes the testee apart from distance, speed, the orientation of the low-altitude surveillance radar
At least one in angle, luffing angle.
2. low-altitude surveillance radar according to claim 1, it is characterised in that the servo extension set at least includes slip ring；
The process extension set, for utilizing the circuit back panel and the slip ring by the signal-processing board, to the ripple
Control machine unit sends control signal.
3. low-altitude surveillance radar according to claim 1, it is characterised in that the One-dimension Phased Array antenna extension set also includes
Frequency Synthesizer and feed element；
The One-dimension Phased Array control antenna extension set, for, according to the control signal, control to be described by the ripple control machine unit
Frequency Synthesizer generates the chirp pulse signal；
The One-dimension Phased Array control antenna extension set, for being divided the chirp pulse signal work(extremely by the feed element
To T/R components described in each road.
4. low-altitude surveillance radar according to claim 1, it is characterised in that the One-dimension Phased Array antenna extension set also includes
Two-channel receiver, the reception signal includes and road intermediate-freuqncy signal and difference road intermediate-freuqncy signal；
The One-dimension Phased Array control antenna extension set, for amplifying the reflected signal by the T/R components, and by after amplification
The reflected signal is sent to the feed element；
The One-dimension Phased Array control antenna extension set, for by the feed element to amplification after the reflected signal carry out work(
Close, obtain described and road intermediate-freuqncy signal and the poor road intermediate-freuqncy signal；
The One-dimension Phased Array antenna extension set, for by the feed element by described and road intermediate-freuqncy signal and the poor road
Frequency signal is sent to the two-channel receiver；
The One-dimension Phased Array control antenna extension set, for by the two-channel receiver to described and road intermediate-freuqncy signal and described
Difference road intermediate frequency number is carried out after down-converted, and by described in after down-converted and in road intermediate-freuqncy signal and the poor road
Frequency signal is sent to the process extension set.
5. the low-altitude surveillance radar according to claim 1 or 4, it is characterised in that the servo extension set also includes triple channel
Joint；
The One-dimension Phased Array control antenna extension set, for the reception signal being sent to the place using the triple channel joint
Reason extension set.
6. low-altitude surveillance radar according to claim 4, it is characterised in that the process extension set also includes AD sampling plates,
The AD sampling plates are arranged on the circuit back panel；
The process extension set, for described and road intermediate-freuqncy signal and the poor road intermediate-freuqncy signal work(to be divided to two AD samplings
Plate；
The process extension set, for passing through two AD sampling plates by described and road intermediate-freuqncy signal and the poor road intermediate-freuqncy signal
It is transformed to two digital signals；
The process extension set, for processing two digital signals respectively by the signal-processing board, obtains institute
State the flight information of testee.
7. according to the arbitrary described low-altitude surveillance radar of claim 1 to 6 described in, it is characterised in that the servo extension set is also wrapped
Include motor, electric machine controller and motor power；
The one-dimensional antenna phased array extension set also includes antenna power unit；
The process extension set also includes radar power supply；
The radar power supply, for being that the motor power and the antenna power unit are powered；
The antenna power unit, for powering for the unit in the one-dimensional phase battle array control extension set；
The motor power, for powering for the motor；
The motor, for driving slip ring and the rotation of triple channel joint；
The motor, is additionally operable to drive the One-dimension Phased Array antenna extension set to rotate by conduction mechanism；
The electric machine controller, for receiving the motor control signal that the process extension set sends, believes according to the motor control
Number drive the motor.
8. low-altitude surveillance radar according to claim 4, it is characterised in that the One-dimension Phased Array antenna extension set also includes
Frequency Synthesizer；
The Frequency Synthesizer, is additionally operable to provide local oscillation signal and block signal for the two-channel receiver；
The local oscillation signal is the mixing local vibration source of the double reception passage down coversion, and the block signal is used to control described pair
Channel receiver is turned on and off according to scheduled timing relationship.
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