CN1190466A - Airport surface detection radar - Google Patents
Airport surface detection radar Download PDFInfo
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- CN1190466A CN1190466A CN96193823A CN96193823A CN1190466A CN 1190466 A CN1190466 A CN 1190466A CN 96193823 A CN96193823 A CN 96193823A CN 96193823 A CN96193823 A CN 96193823A CN 1190466 A CN1190466 A CN 1190466A
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- signal
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- monopulse
- asdr
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
- G01S13/343—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using sawtooth modulation
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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
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
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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
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/933—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of aircraft or spacecraft
- G01S13/934—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of aircraft or spacecraft on airport surfaces, e.g. while taxiing
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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
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
- G01S2013/916—Airport surface monitoring [ASDE]
Abstract
An Airport Surface Detection Radar (ASDR) including a transmitting antenna (116), a transmitter (110), which transmits a substantially linearly frequency modulated CW signal via the transmitting antenna (116), a monopulse receiving antenna (118) and a monopulse receiver which receives at least one response from a target on an airport surface via the receiving antenna (118), generates azimuthal sum and difference signals and determines the position of the target responsive to the instantaneous sum and difference signals and orientation of the antennas.
Description
Invention field
The present invention relates to field of radar, relate more specifically to use the airport surface detection radar of high range resolution.
Background of invention
Airport surface detection radar is known and has used above 35 years in the U.S..This system offers the control personnel with the radar detection figure on an airport, and he will use radar graphic to determine position and the direction of boarding a plane in ground.Usually, skyborne aircraft is by this class radar detection, unless when their very near during the taking off and land of ground.
This class radar is strict to the requirement of resolution, because need aircraft figure on the radar can represent that the existence of aircraft can represent its orientation again usually.Therefore, these systems have the true shape that enough resolution represents to board a plane in the airport usually.In addition, other delivery vehicle, for example automobile also must distinguish on display screen.Another requirement to this system is that they were worked in rainy day or greasy weather, because this is when normally needing most them.When fair weather, be commonly referred to be enough to the visual surveillance on airport.
In order to satisfy these requirements, they convert technical requirement to and are very narrow angle resolution (about 0.1 °-0.2 °) and point-device apart from resolution, just need the wide pulse of nanosecond of high-power Ku frequency band.Therefore, need very large antenna (4 to 5 meters) and these antenna to rotate so that the short update cycle to be provided usually with two-forty.
The angle resolution depends on: the design of radar antenna, the characteristic of employed frequency and detected target and classification.But, be appreciated that poor range resolution also can influence radar system and distinguish the ability of its angular distance greater than each object of aerial angle resolution.In some radar application, for example follow the tracks of isolated target, use the monopulse reception of reflection can improve the angle resolution.Yet, in using, ASDR is detected that object normally very closely arranges, owing to receive from last a plurality of targets of giving set a distance, the monopulse reception is normally insecure.
Be known in the art the FM/CW radar system.For example FM/CW has been used in the modified CW radar (ICWR) of Hawk missile system.This radar emission CW signal, its frequency changes in time linearly.By in the distance of on preset time the measurement of the difference on the frequency between the signal that transmits and receive from object being determined object.If the slope of frequency change is known (for example being Δ f HZ/sec), the difference on the frequency δ f that then obtains will be equivalent to the distance of (δ/Δ) * C.
Summary of the invention
A purpose of some aspect of the present invention provides a kind of radar system, and it has high angle and degree of depth resolution.Preferably the present invention uses the FM/CW radar system.
A purpose of some aspect of the present invention provides the modified airport surface detection radar (ASDR) with the power lower than existing system, improved reliability and smaller szie.
The present invention be based on use improved rise from resolution radar, preferably the FM/CW radar is determined the position and the distance of object.Because the target of ASDR provides the echo of a complexity usually, the present invention can separate from the echo of adjacent object and the identification echo group from same object by its very high position resolution.
The FM/CW radar is as the main body of one aspect of the invention, uses highly stable, best very linear FM/CW signal.Sort signal is produced by digital synthesizer.This produces the high range resolution from the object echo.By using monopulse reception to improve the angle resolution to reflection.This radar system has sufficiently high range resolution, can prevent that therefore the echo of the last a plurality of targets of the given distance of monopulse angle resolution from doing poor.This allows this system to use than the little antenna of traditional antenna and is operated on the low-power, produces system littler, solid-state, high reliability.
Therefore, provide a kind of airport surface detection radar (ASDR) according to a preferred embodiment of the present invention, it comprises:
Emitting antenna;
Transmitter, it passes through the transmission antennas transmit CW signal of linear frequency modulation in fact;
The monopulse receiving antenna; And
The monopulse receiver, it receives at least from the response signal of a target on the ground, airport by receiving antenna, produces orientation and signal and difference signal, and in response to instantaneous and and the instantaneous direction of difference signal and antenna determine the position of target.
In a preferred embodiment of the invention, ASDR comprises the waveform generator of a kind of Direct Digital compositor (DDS).Best, this DDS waveform generator produces a FM/CW signal, and it is launched the antenna emission, so that the response signal that at least one coverlet pulse receiver receives comprises the response signal to the FM/CW signal.
In a preferred embodiment of the invention, the monopulse receiver has the angle resolution that is better than about 0.5 degree.Additionally or alternatively, the range resolution that the monopulse receiver has is better than about 4 meters, preferably is better than about 2 meters.
In addition, according to a preferred embodiment of the present invention, provide a kind of FM/CW radar, it comprises:
Direct Digital compositor (DDS) waveform generator, it produces a FM/CW signal;
Antenna system, its emission FM/CW signal;
Receiver, it receives the reflection FM/CW signal from target; And
Signal analyzer, it relatively transmits and also determines the distance of target with the instantaneous frequency of received signal thus.
In a preferred embodiment of the invention, this signal analyzer is a kind of monopulse analyzer, its receive from receiver with signal and difference signal.
In addition, according to a preferred embodiment of the present invention, provide a kind of radar system that is used for surveying and drawing the target of being scheduled to the visual field, it comprises:
Emitting antenna;
Transmitter, it is by the transmission antennas transmit signal;
The monopulse receiving antenna; And
The monopulse receiver, it receives at least from a response signal of target in the visual field by receiving antenna, produces orientation and signal and difference signal, and in response to instantaneous and and the instantaneous direction of difference signal and antenna determine the position of target,
Wherein the position of target is to determine to be better than about 4 meters range resolution.
In a preferred embodiment of the invention, the position of target is to determine to be better than about 2 meters range resolution.Additionally or alternatively, the position of target is to determine with the position angle resolution that is better than about 0.5 degree.
In a preferred embodiment of the invention, the predetermined visual field comprises ground, airport.
In a preferred embodiment of the invention, the signal of being launched by transmitter is warbled CW signal, preferably linear in fact frequency modulation (PFM) CW signal.
In a preferred embodiment of the invention, this radar system comprises the waveform generator of a Direct Digital compositor (DDS), and it produces frequency modulation (PFM) CW signal.
Brief description of drawings
From below in conjunction with the detailed description of accompanying drawing to the preferred embodiment of the present invention, will be better understood the present invention, accompanying drawing is:
Figure 1A represents to illustrate that according to a preferred embodiment of the present invention distance determines the waveform that transmits and receives in the linear FM/CW radar of method;
Figure 1B is a simplified block diagram of representing FM/CW emission/receiving radar system according to a preferred embodiment of the present invention;
Fig. 1 C represents the typical case's output by the system shown in the block diagram of Figure 1B;
Fig. 2 is the simplified block diagram of airport surface detection radar (ASDR) in accordance with a preferred embodiment of the present invention;
Fig. 3 be in accordance with a preferred embodiment of the present invention, use the general block diagram in the ASDR of Fig. 2 based on the oscillator of DDS; And
Fig. 4 be in accordance with a preferred embodiment of the present invention radar signal and the general block diagram of data processor.
The detailed description of the preferred embodiments of the present invention
Figure 1A represents the transmitted waveform and the reflection configuration of FM/CW radar system according to a preferred embodiment of the present invention in simplified form.Having the warbled CW signal that changes with diagonal manner is launched away by antenna.The frequency change of this signal is represented with block curve 100 in Fig. 1.Being arranged in the frequency change that has a single goal reflected signal of single return to set a distance apart from transmitter from one represents at Fig. 1 with dashed lines curve 102.Because primary event only occurs for this simplification example, the frequency of the reflected signal of reception will be followed the tracks of the frequency that transmits with a time delay δ t=2r/c, and r is that the distance and the c of object are the lighies velocity in the formula.
Compare near the point (except that the illustrated discrete frequency point) at any time with the frequency of reflected signal if will transmit, difference on the frequency between these two kinds of signals is δ f=s δ t, wherein s is a frequency to the rate of change of time, i.e. slope of a curve among Figure 1A.
Figure 1B represents the simple emittor/receiver according to a FM/CW radar system of Figure 1A principle work.Generator 110 has the signal of frequency change as shown in Figure 1A.This signal is amplified by power amplifier 112 and is launched away by the direct path of sensor 114 to emitting antenna 116.
The return signal that receives from the sample that transmits of sensor 114 and by receiving antenna 118 in a frequency mixer 120 by mixing, and by bandpass filter (BPF) 122 filtering, this wave filter is removed unwanted return signal, as the signal elimination that the extraneous object of given object distance is returned.Mixing and filtered signal spin frequently be basically rely on by the mapping object apart from linear change.From the signal of BPF122 then by 124 digitizings of a modulus (A/D) converter, this digitized signal comprises from transmitting and both LFM frequency components of received signal, and analyze by Fast Fourier Transform (FFT) (FFT) or other frequency analyzer 126, to produce the frequency spectrum shown in Fig. 1 c.
Should be appreciated that Figure 1B is the form extremely simplified of a kind of FM/CW radar and the many modification that have circuit part.For example, can use circulator and single antenna to replace the system of sensor shown in Fig. 1 and double antenna and/or carry out digitizing or system earlier in signal path is simulation system fully.In addition, preferably use the monopulse receiver to improve the angle resolution of receiving antenna, as described below.Just as is known in the art, other modification of circuit shown in Fig. 1 also is possible.
Fig. 1 c represents to be used for the output of the frequency analyzer 126 of simple reflex shown in Figure 1A.Spiking 125 when the signal output that representative transmits is represented as corresponding to frequency If (fo).This signal plays the effect of the reference signal of reflected signal, a spiking 127 that is expressed as in the drawings greater than reference signal frequency δ f place in the reflected signal.If receive reflection more than 1 simultaneously from one or more targets, they will be by representing corresponding to the branch spectrum component on each frequency of their distances.
A kind of FM/CW radar is differentiated range resolution and the angle resolution that the ability of different components in all reflections depends on system.When if the angle resolution is not enough, the frequency component of two targets of then separating on the angle will overlap and can not differentiate between them.Similarly, if range resolution is not enough, then can not differentiate the object that radially separates.
When the close object of mapping distance, must obtain high angle resolution with very large antenna usually, because at the authentication technique that uses other in such cases, receive normally unpractiaca as monopulse.But the present invention uses extra high range resolution, differentiates that this will be as described in detail below so that needing to avoid just to make angle by the simple venation receiver with big antenna.This system is inapplicable when not having high range resolution.
The present invention is a kind of FM/CW radar system described in upper and lower literary composition, and it is as preferred example.But, should be appreciated that other method and system, for example also replaceable the making of short-pulse radar system is used to provide high range resolution required for the present invention.Yet this FM/CW embodiment is for preferably always simpler lower with implementation cost because of it.
Basic demand to high range resolution when using the FM/CW radar is the split hair linearity of signal source 110, or it is very stable and predictable over time at least, so that can make correction for any non-linear of frequency sweeping.Show that as following this system obtains according to an aspect of the present invention.
As mentioned above, prior art system is not used for the ASDR system with the FM/CW system, is because the target of ASDR system is differentiated the surperficial incompatibility between requirement and the FM/CW method ability.This has just caused being used for the high power of ASDR system, the big system of common insecure very short pulse.
The simplification circuit block diagram of ASDR system according to one preferred embodiment of the present invention is illustrated among Fig. 2.A basic FM/CW signal that produces as shown in fig. 1 based on the waveform generator 130 of DDS below will describing more comprehensively.This waveform by one for example the step-up frequency changer 132 of traditional approach transform to the Ku frequency band, this step-up frequency changer receives a reference frequency by lead 136 from driver.Driver 134 also produces one or more fixed frequency signals, and it is used from lead 138 receptions and with the control signal of coming self-controller 140 that receives from lead 142 by waveform generator 130, to produce basic FM/CW signal.
The output of step-up frequency changer 132 is launched from emitting antenna 144 after being launched device 146 amplifications.
The signal coverlet reception of impulse antenna 148 of the target reflection from antenna 144 is surveyed receives, and antenna 148 is with high relatively speed, as being that the speed 60RPM of 1HZ is with antenna 144 rotations corresponding to renewal frequency.The signal that is received by monopulse antenna 148 is converted to and signal and difference signal by the fore-end 150 of traditional design.Should and signal and difference signal be converted to the signal of intermediate frequency (IF) by down-converter 152 frequency reducings ground, this down-converter 152 receives reference signals through leads 154 from step-up frequency changer 132.This IF and signal and difference signal are transformed into video and signal and video difference signal by IF transducer 156, and IF transducer 156 receives the IF reference signal through lead 157 from driver 134.This video and and difference signal converted to the reflected signal of high angular resolution and send processor 160 to by the video unit 158 of traditional design.
Fore-end 150, down-converter 152, IF transducer 156 and video unit 158 can all be implemented in the mode of beat receiver, as known in the art.
A preferred embodiment of digital waveform generator 130 is illustrated among Fig. 3.In the preferred embodiment of Fig. 3, waveform generator 130 comprises Direct Digital compositor (DDS) 170, PLESSEY SP2002 for example, it is subjected to the control that logical block (ALU)/counter 172 is stated in a calculation, and the latter provides control signal via 174 couples of DDS170 of bus.These control signal indications are with respect to being exported by the instantaneous frequency of the DDS170 of the signal of driver 134 receptions through lead 138.ALU/ counter 172 produces control signal in response to FM initiating signal and the FM rate signal with each time clock indication frequency shift of an indication DDS starting frequency.These two signals are that ALU/ counter 172 receives through lead 142 slave controllers 140.
As noted above, careful range resolution can be arranged and can produce lower powered, compact relatively all solid state ASDR system thus as the regulated linear waveform that is produced by generator 130.Particularly, transmitter 146 can use any suitable solid-state amplifier to produce 10 watts output power.
In a preferred embodiment of the invention, 134 pairs of waveform generators 130 of driver provide the signal of 24MHZ and 1.44GHZ, provide the signal of 1.44GHZ and 1.68MHZ to step-up frequency changer 132, down-converter 152 is provided the signal of 1.68GHZ and IF transducer 156 provided the signal of 1.656GHZ.All these frequencies are based on that the host crystal oscillator that is operated in the driver on the 240MHZ produces.The output of waveform generator 130 is swung on the scope of 240MHZ and 480MHZ in the scope of 360MHZ and according to required resolution.The output of step-up frequency changer is 15, on the 960MHZ, therefore transmits in the scope of 16GHZ and swings on the scope of ± 120MHZ.Antenna 144 is the electromagnetic horn/parabola antennas with horizontal extent 0.4-0.6 rice and vertical range 1.2-1.5 rice.
In a preferred embodiment of the invention, receiving antenna 148 is dual electromagnetic horn/parabola antennas of a kind of similar size, and has the intrinsic angle resolution of about 1 degree.As the result that monopulse receives, this resolution is improved to 0.3 degree or more.This angle resolution has produced linear orientation resolution about 2.5 meters on 500 meters distances.
The scope of this system is usually between 100 meters to 4000 meters.This allows range resolution to be better than 4 meters, is generally 1-2 rice.The vertical sounding width of antenna system is preferably 25 number of degrees magnitudes, for example under surface level and the surface level 25 the degree between, this has guaranteed flying object is foreclosed.
A preferred embodiment of the present invention has used 1, the IF frequency of 680MHZ and the 2nd IF frequency of 24MHZ.Aforesaid waveform generator 130 based on DDS preferably uses as the known a kind of accurate crystal oscillator of prior art source, and it can provide has the extremely accurately FM/CW signal of the linearity, and this requirement for range resolution of the present invention can be satisfied.
Fig. 4 summarily represent according to a preferred embodiment of the present invention radar signal and the frame circuit diagram of data processor 190, this processor combines the function of video unit 158 and processor 160.With signal and difference signal ∑ and Δ by dual A/D converter 192 digitizings and be sent to two FFT transducers 194 and 196 respectively.For example, the digitizings that received by FFT transducer 194 and 196 and and the difference signal input comprise the signal of 10MHZ, as shown in Figure 4.FFT transducer 194 produces the numeral and the signal of a FFT conversion, a 5MHZ signal shown in Fig. 4 for example, and it is by amplitude gate 197 filtering.FFT transducer 196 produces the digital difference of a FFT conversion, a 5MHZ signal shown in Fig. 4 for example, it by one and-199 filtering of difference comparer.Filtering and and difference signal 198 and 200 received by quick input/output interface unit 202 respectively, this interface unit also receives an orientation indication from shaft encoder 166, and producing a bearing signal 204, it is sent to a high-speed computer 206, as the DEC2100 computing machine.
The information that is produced by computing machine 206 sends video-stream processor and VME I/F208 to by radio network.Most of unit of radar signal and data processor 190 are by 210 communications of VME bus.Based on the information that computing machine 206 produces, video-stream processor adds the data characteristics position on display, send the alarm that runway is invaded, report caution and alarm, the obstruction of the delivery vehicle on effective runway and the inlet passage etc.
Those of skill in the art for present technique are appreciated that the present invention is not limited on the content of above concrete diagram and description.And scope of the present invention is only by defined in following claims.
Claims (15)
1, a kind of airport surface detection radar (ASDR) comprising:
Emitting antenna;
Transmitter, it passes through the transmission antennas transmit CW signal of linear frequency modulation in fact;
The monopulse receiving antenna; And
The monopulse receiver, it receives at least from the response signal of a target on the ground, airport by receiving antenna, produces orientation and signal and difference signal, and in response to instantaneous and and the instantaneous direction of difference signal and antenna determine the position of target.
2,, comprise the waveform generator of a kind of Direct Digital compositor (DDS) according to the ASDR of claim 1.
3, according to the system of claim 2, wherein the DDS waveform generator produces a FM/CW signal, and wherein the response signal of transmission antennas transmit FM/CW signal and wherein at least one coverlet pulse receiver reception comprises the response signal to the FM/CW signal.
4, according to each ASDR among the claim 1-3, wherein the angle resolution that has of monopulse receiver is better than about 0.5 degree.
5, according to each ASDR in the above claim, wherein the range resolution that has of monopulse receiver is better than about 4 meters.
6, according to the ASDR of claim 5, wherein the range resolution that has of monopulse receiver is better than 2 meters.
7, a kind of radar system that is used for surveying and drawing the target of being scheduled to the visual field comprises:
Emitting antenna;
Transmitter, it is by the transmission antennas transmit signal;
The monopulse receiving antenna; And
The monopulse receiver, it receives at least one response signal from target in the visual field by receiving antenna, produces orientation and signal and difference signal, and in response to instantaneous and and the instantaneous direction of difference signal and antenna determine the position of target,
Wherein the position of target is to determine to be better than about 4 meters range resolution.
8, according to the system of claim 7, wherein the position of target is to determine to be better than about 2 meters range resolution.
9, according to the system of claim 7 or 8, wherein the position of target is to determine with the position angle resolution that is better than 0.5 degree.
10, according to each system among the claim 7-9, the wherein predetermined visual field comprises ground, airport.
11, according to each system among the claim 7-10, wherein the signal by the transmitter emission is warbled CW signal.
12, according to the system of claim 11, comprise the waveform generator of Direct Digital compositor (DDS), it produces warbled CW signal.
13, according to the system of claim 11 or 12, wherein warbled CW signal is linear in fact frequency modulation (PFM) CW signal.
14, a kind of airport surface detection radar (ASDR) comprising:
Direct Digital compositor (DDS) waveform generator, it produces a FM/CW signal;
Antenna system, its emission FM/CW signal;
Receiver, it receives the reflection FM/CW signal from target; And
Signal analyzer, it relatively transmits and also determines the distance of target with the instantaneous frequency of received signal thus.
15, according to the FM/CW radar of claim 14, wherein signal analyzer is a kind of monopulse analyzer, its receive from receiver with signal and difference signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL11367695A IL113676A (en) | 1995-05-09 | 1995-05-09 | Airport surface detection radar |
| IL113,676 | 1995-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1190466A true CN1190466A (en) | 1998-08-12 |
Family
ID=11067456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96193823A Pending CN1190466A (en) | 1995-05-09 | 1996-05-08 | Airport surface detection radar |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0824707A4 (en) |
| KR (1) | KR19990014672A (en) |
| CN (1) | CN1190466A (en) |
| AU (1) | AU5731496A (en) |
| BR (1) | BR9609372A (en) |
| CA (1) | CA2220150A1 (en) |
| IL (1) | IL113676A (en) |
| PL (1) | PL323317A1 (en) |
| TR (1) | TR199701318T1 (en) |
| WO (1) | WO1996035961A1 (en) |
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| KR100689421B1 (en) * | 2004-12-31 | 2007-03-08 | 삼성전자주식회사 | Base station antenna system and method for estimating mobile station direction in a wireless communication system |
| US7965227B2 (en) | 2006-05-08 | 2011-06-21 | Era Systems, Inc. | Aircraft tracking using low cost tagging as a discriminator |
| CN101706569B (en) * | 2009-11-05 | 2012-01-25 | 民航数据通信有限责任公司 | Method and device for estimating covering precision of multipoint positioning system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2115088B1 (en) * | 1970-11-30 | 1975-03-21 | Labo Cent Telecommunicat | |
| SE7415631L (en) * | 1973-12-14 | 1975-06-16 | Thomson Csf | |
| DE3012616C2 (en) * | 1980-04-01 | 1982-11-04 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Airport surveillance facility |
| FR2555319B1 (en) * | 1983-11-23 | 1987-07-31 | Trt Telecom Radio Electr | FREQUENCY MODULATED SINGLE-PULSE CONTINUOUS WAVE RADAR SYSTEM WITH IMPROVED AXIS STABILITY |
| US4994810A (en) * | 1990-03-26 | 1991-02-19 | Allied-Signal Inc. | Monopulse processor digital correction circuit |
| US5173706A (en) * | 1991-04-16 | 1992-12-22 | General Electric Company | Radar processor with range sidelobe reduction following doppler filtering |
| WO1993000737A1 (en) * | 1991-06-25 | 1993-01-07 | The Commonwealth Of Australia | Arbitrary waveform generator architecture |
| US5173700A (en) * | 1992-03-03 | 1992-12-22 | General Electric Co. | Mainbeam jammer nulling with monopulse angle correction |
| FR2706624B1 (en) * | 1993-06-14 | 1995-09-29 | Dassault Electronique | Ground surveillance radar device, especially for airports. |
-
1995
- 1995-05-09 IL IL11367695A patent/IL113676A/en not_active IP Right Cessation
-
1996
- 1996-05-08 CA CA002220150A patent/CA2220150A1/en not_active Abandoned
- 1996-05-08 TR TR97/01318T patent/TR199701318T1/en unknown
- 1996-05-08 PL PL96323317A patent/PL323317A1/en unknown
- 1996-05-08 EP EP96915567A patent/EP0824707A4/en not_active Withdrawn
- 1996-05-08 KR KR1019970708013A patent/KR19990014672A/en not_active Application Discontinuation
- 1996-05-08 WO PCT/US1996/006440 patent/WO1996035961A1/en not_active Application Discontinuation
- 1996-05-08 AU AU57314/96A patent/AU5731496A/en not_active Abandoned
- 1996-05-08 BR BR9609372A patent/BR9609372A/en not_active Application Discontinuation
- 1996-05-08 CN CN96193823A patent/CN1190466A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417951C (en) * | 2004-07-13 | 2008-09-10 | 富士通株式会社 | Radar apparatus, radar apparatus controlling method |
| CN101153911B (en) * | 2004-07-13 | 2010-10-20 | 富士通株式会社 | Radar apparatus, radar apparatus controlling method |
| CN101198884B (en) * | 2005-04-14 | 2012-12-26 | 秦内蒂克有限公司 | Method and apparatus for detecting a target in a scene |
| CN102540263A (en) * | 2011-12-28 | 2012-07-04 | 成都芯通科技股份有限公司 | Method for solving safety problem of airport runways |
| CN108459352A (en) * | 2017-02-21 | 2018-08-28 | 上海和璞电子技术有限公司 | Unmanned plane detects and drives system |
| CN110888134A (en) * | 2019-11-04 | 2020-03-17 | 电子科技大学 | Non-cooperative and cooperative integrated airport scene monitoring system |
| CN110888134B (en) * | 2019-11-04 | 2023-07-18 | 电子科技大学 | Non-cooperative and cooperative integrated airport scene monitoring system |
| CN113030943A (en) * | 2021-03-05 | 2021-06-25 | 中国人民解放军空军工程大学航空机务士官学校 | Multi-target tracking algorithm for collecting azimuth range profile based on monopulse radar signals |
| CN113030943B (en) * | 2021-03-05 | 2023-08-18 | 中国人民解放军空军工程大学航空机务士官学校 | Multi-target tracking algorithm based on monopulse radar signal acquisition azimuth range profile |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0824707A4 (en) | 1999-08-11 |
| KR19990014672A (en) | 1999-02-25 |
| BR9609372A (en) | 1999-07-27 |
| EP0824707A1 (en) | 1998-02-25 |
| WO1996035961A1 (en) | 1996-11-14 |
| TR199701318T1 (en) | 1998-03-21 |
| CA2220150A1 (en) | 1996-11-14 |
| IL113676A (en) | 1999-05-09 |
| AU5731496A (en) | 1996-11-29 |
| PL323317A1 (en) | 1998-03-16 |
| MX9708610A (en) | 1998-06-28 |
| IL113676A0 (en) | 1996-12-05 |
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