CN103675802A - System and method for achieving large-power radar short-distance detection with double-path feed line - Google Patents
System and method for achieving large-power radar short-distance detection with double-path feed line Download PDFInfo
- Publication number
- CN103675802A CN103675802A CN201310700510.5A CN201310700510A CN103675802A CN 103675802 A CN103675802 A CN 103675802A CN 201310700510 A CN201310700510 A CN 201310700510A CN 103675802 A CN103675802 A CN 103675802A
- Authority
- CN
- China
- Prior art keywords
- receiving
- feeder line
- transmitting
- feed
- radar antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
- 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
-
- 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
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S7/032—Constructional details for solid-state radar subsystems
Abstract
The invention relates to a detection system and a detection method, in particular to a system and method for achieving large-power radar short-distance detection with a double-path feed line and belongs to the technical field of radar detection. According to the technical scheme, the system for achieving large-power radar short-distance detection with the double-path feed line comprises a radar antenna and a transmitting and receiving feed line channel located at the focus of the radar antenna. The transmitting and receiving feed line channel comprises a transmitting and receiving feed source located at the focus of the radar antenna. At least one receiving feed line channel is arranged at the place adjacent to the focus of the radar antenna. The receiving feed line channel comprises a receiving feed source adjacent to the focus of the radar antenna. The receiving feed source is connected with a second receiving machine through the receiving feed line. The detection system is simple and compact in structure, capable of achieving effective short-distance detection and reducing detection cost, wide in application range, safe and reliable.
Description
Technical field
The present invention relates to a kind of detection system and method, especially a kind of system and method for realizing high powered radar proximity detection with two-way feeder line, belongs to the technical field of radar detection.
Background technology
In radar detection field; particularly when radar transmitter is worked with pulse mode; in order to realize the effective detection to target; the transmitter power of radar generally can not done too littlely; the microwave limiter parts such as transmit-receive switch, discharge tube (or PIN pipe), high power amplitude limiter must be set, to be used for the protecting emissive power that receiver is not come by leakage to burn at receiver inlet.There is one " release time " in the microwave device of above-mentioned protection use; when powerful transponder pulse can could recover the conducting state of passage time delay a period of time in the past; although during this period of time can be very short; but can there is C*(τ+△ T)/2 detection blind area (C: the light velocity; τ: fire pulse width; △ T: release time), therefore in theory just cannot accomplish the T to C*(τ+△) detection of/2 this section of point blank internal objects.
In order to realize proximity detection, often can only adopt two-antenna scheme (surveying the scope of not studying in this case with continuous wave).Usually, two-antenna scheme comprises number one antenna and No. second antenna, realizes the transmitting of radar and the effect of reception (can measure in theory blind area signal in addition), with No. second antenna reception echo with number one antenna.Because No. second antenna is without emission function, therefore can in receiving cable, the microwave device that has " release time " need not be set, in theory just can realize in-plant detection.
But there are a lot of problems in the scheme of above-mentioned double antenna: 1), need two slave antennas, complex structure, cost is high; 2), in order to ensure basic detection performance, antenna can not be done too littlely, so just causes existing between target and two slave antennas an angle, along with nearlyer this angle of distance is larger.In order to ensure detection performance, antenna must be made very strong directivity.For in-plant target, No. second antenna reception to microwave energy may not increase, and also can decline to the measuring accuracy of angle.Therefore the performance that, two-antenna scheme is surveyed point blank declines on the contrary.
In addition, in some particular application, such as realizing the detection to insect with radar, toward contact, require antenna beam to make conical scanning mode, the speed of conical scanning can be very high, and the angle of conical scanning has strict demand, if two-antenna scheme is just difficult to implement in engineering for this demand.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of system and method for realizing high powered radar proximity detection with two-way feeder line is provided, it is simple and compact for structure, can realize in-plant effective detection, reduce and survey cost, wide accommodation, safe and reliable.
According to technical scheme provided by the invention, the described system that realizes high powered radar proximity detection with two-way feeder line, comprises radar antenna and is positioned at the transmitting-receiving feeder line passage at described radar antenna focus place; Described transmitting-receiving feeder line passage comprises the transmitting-receiving feed that is positioned at radar antenna focus place; At the focus place of contiguous described radar antenna, at least one road is set and receives feeder line passage, described reception feeder line passage comprises the reception feed at contiguous radar antenna focus place, and described reception feed is connected with the second receiver by receiving feeder line.
Described transmitting-receiving feeder line passage also comprises transmit-receive switch, transmitter, limiter and the first receiver, transmit-receive switch is connected with transmitting-receiving feed by transmitting-receiving feeder line, transmit-receive switch is connected with transmitter, and transmit-receive switch is connected with the input end of the first receiver by limiter.
When described transmitter carries out signal transmitting by transmitting-receiving feed, the second receiver receives signal power by receiving feed and reception feeder line is not more than the power that the second receiver can bear.
Described radar antenna comprises feed-forward type radar antenna, feedback type radar antenna or offset-feed type radar antenna.
A similar technical scheme, the described system that realizes high powered radar proximity detection with two-way feeder line, comprises radar antenna and is positioned at the transmitting-receiving feeder line passage at described radar antenna focus place; Described transmitting-receiving feeder line passage comprises the transmitting-receiving feed that is positioned at radar antenna focus place; At the focus place of contiguous described radar antenna, at least one road is set and receives feeder line passage, described reception feeder line passage comprises the reception feed at contiguous radar antenna focus place, and described reception feed is connected by the input end of the first receiver in receiving feeder line and microwave gating switch and receiving and dispatching feeder line passage.
The input end of described the first receiver is also connected with the output terminal of receiving and dispatching the limiter of feeder line passage by microwave gating switch, the input end of limiter is connected with transmit-receive switch, transmit-receive switch is connected with transmitter, and transmit-receive switch is connected with transmitting-receiving feed by transmitting-receiving feeder line.
With two-way feeder line, realize a method for high powered radar proximity detection, the method for described proximity detection comprises the steps:
A, transmitting-receiving feeder line passage is set at the focus place of radar antenna, and at least one road is set at the focus place of radar antenna receives feeder line passage, described reception feeder line passage comprises reception feed and receives feeder line, receives feed and is connected with receiver system by receiving feeder line;
The transmitter of b, transmitting-receiving feeder line passage is by transmitting-receiving feed to radar antenna microwave radiation energy, and radar antenna radiate powerful microwave energy to dimensional orientation;
C, after the fire pulse width of launching highpowerpulse signal through transmitter and reached before release time of limiter of transmitting-receiving feeder line passage, the microwave signal of returning by receiving feed receiving radar antenna-reflected, and by receiving feeder line, the echoed signal that receives feed reception is transferred to signal processing terminal system by receiver system, to realize the detection to close-in target;
D, after the release time through limiter, the microwave signal of returning by transmitting-receiving feeder line passage receiving radar antenna-reflected, through limiter, the echoed signal of reception is transferred to signal processing terminal system by receiver system, to realize the detection to required separation distance target.
Described receiver system comprises the first receiver and the second receiver, receiving feed is connected with the input end of the second receiver by receiving feeder line, the input end of the first receiver connects limiter, limiter is connected with transmit-receive switch, transmit-receive switch is connected with transmitter, and transmit-receive switch is connected with transmitting-receiving feed by transmitting-receiving feeder line.
Described transmitting-receiving feed and receive feed around same axle High Rotation Speed, obtains receiving and dispatching the conical scanning that feed is the transmitting-receiving wave beam of passage, and take and receive the conical scanning of the received beam that feed is passage.
In described steps d, in the microwave signal of returning by transmitting-receiving feeder line passage receiving radar antenna-reflected, when the echoed signal of reception being transferred to signal processing terminal system by receiver system through limiter, signal processing terminal system also receives by receiving feed, receiving the echoed signal that feeder line transmits.
Advantage of the present invention: under the prerequisite sharing with common antenna, receive feeder line passage by least one road is set, avoid using the limiter shielding, realize the detection to point blank target; By the locus of the reception feed that receives feeder line passage is set, rationally adjust the angle that received beam departs from antenna normal direction, and jointly do the technological means of conical scanning with transmitting-receiving feeder line passage, realization, to closely effective detection of moving target characteristic, can solve the excessive technical barrier in high powered radar detection blind area, improves the detectivity to point blank target, when improving detection performance, also can reduce costs, simple and compact for structure, wide accommodation, safe and reliable.
Accompanying drawing explanation
Fig. 1 is a kind of enforcement structural drawing of receiver system of the present invention.
Fig. 2 is that the another kind of receiver system of the present invention is implemented structural drawing.
Fig. 3 is the schematic diagram of the present invention when carrying out conical scanning Industrial detection.
Description of reference numerals: 1-antenna, 2-transmitting-receiving feed, 3-transmitting-receiving feeder line, 4-transmit-receive switch, 5-transmitter, 6-limiter, 7-the first receiver, 8-receive feed, 9-receives feeder line, 10-the second receiver and 11-microwave gating switch.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1: in order to realize in-plant target detection, the present invention includes radar antenna 1 and be positioned at the transmitting-receiving feeder line passage at described radar antenna 1 focus place; Described transmitting-receiving feeder line passage comprises the transmitting-receiving feed 2 that is positioned at radar antenna 1 focus place; At the focus place of contiguous described radar antenna 1, at least one road is set and receives feeder line passage, described reception feeder line passage comprises the reception feed 8 at contiguous radar antenna 1 focus place, and described reception feed 8 is connected with the second receiver 10 by receiving feeder line 9.
Particularly, described transmitting-receiving feeder line passage also comprises transmit-receive switch 4, transmitter 5, limiter 6 and the first receiver 7, transmit-receive switch 4 is connected with transmitting-receiving feed 2 by transmitting-receiving feeder line 3, transmit-receive switch 4 is connected with transmitter 5, and transmit-receive switch 4 is connected with the input end of the first receiver 7 by limiter 6.
Detection performance in order to ensure radar to distant object, transmitting-receiving feed 2 is often set at the focus place of radar antenna 1, the highpowerpulse signal that transmitter 5 is launched outputs to backward radar antenna 1 microwave radiation energy of transmitting-receiving feed 2 through transmit-receive switch 4, transmitting-receiving feeder line 3, and radar antenna 1 radiate powerful microwave energy again to dimensional orientation.When in accepting state, radar antenna 1 arrives focus place by the most of energy centralization receiving, the transmitting-receiving feed 2 that is arranged on focus place can receive and converge near the most of energy of focus, by receiving and dispatching feeder line 3, transmit-receive switch 4, limitting secondary device 6, finally being transferred to the first receiver 7 amplifies, the first receiver 7 is transferred to signal processing terminal system by the echo information obtaining, after the echo information of the first receiver 7 transmission being processed by signal processing terminal system, complete the detection mission to target.Above-mentioned transmitting-receiving process is the detection method of normal radar, can effectively detect distance to be: the C*(τ+△ T) echo beyond/2 blind areas.
Further, when described transmitter 5 carries out signal transmitting by transmitting-receiving feed 2, the second receiver 10 receives signal power by receiving feed 8 and reception feeder line 9 is not more than the power that the second receiver 10 can bear.
When reception feed 8 is set near the focus at radar antenna 1 again, by receiving feeder line 9, be connected with the second receiver 10, during transmitter 5 transmittings, owing to receiving feeder line passage and receiving and dispatching feeder line passage not in same branch road, be coupled to the power P of the second receiver 10 input ends
mfor:
P
M=[P
S*(S
J/S)*K
1+P
H]*K
0
Wherein: P
sfor radar antenna 1 to dimensional orientation launched microwave the power in Antenna aperture equivalent area.S
jfor receiving the power projected area of feed 8 in Antenna aperture.S is the power projected area of Antenna aperture.K
1for receiving the reception coefficient of the microwave of 8 pairs of Antenna aperture transmittings of feed.P
hbe to comprise that transmitting-receiving feed 2, transmitting-receiving feeder line 3,5 pairs, transmitter receive feed 8 by the microwave power of Space Coupling.K
0for receiving the loss factor of feeder line 9.
Owing to receiving the power projected area of feed 8 in Antenna aperture, be very little with the ratio of the power projected area of Antenna aperture, the power [P being coupled to
s* (S
j/ S) * K
1] be little.Power P for Space Coupling
halso be very little, and total power can also be by receiving the loss factor K of feeder line 9
0regulate; therefore can guarantee that the power that is input to the second receiver 10 input ends during transmitter 5 transmittings is less than or equal to the power that the second receiver 10 can bear completely; thereby the MICROWAVE PROTECTION device of amplitude limit device class can be set, avoid occurring occurring that the situation that connects " release time " 7 reception signals to hinder the first receipts machine occurs in transmitting-receiving feeder line passage.Receiving feed 8 can directly be connected with the first receiver 10 by receiving feeder line 9.The microwave signal that just can reflect by the second receiver 10 receiving antennas after the fire pulse width τ time, therefore aspect detection range, blind area only has: C* τ/2.
While receiving feed 8 reception signal, be input to the echoed signal power P of the second receiver 10
in:
P
in=?P
i*?K
2*?K
0
Wherein: P
ithe echo power receiving for radar antenna 1; K
2for receiving the reception coefficient of feed 8.
Although the echo power major part that radar antenna 1 receives concentrates on the focus place of radar antenna, but be actually " a power spot " with certain area that concentrates on focus place, receive feed 8 and be just arranged near transmitting-receiving feed 2, the reception coefficient that receives feed 8 can be too not little.And with the various attenuation ratios of the echo of maximum distance, receive coefficient and be far longer than remote echo attenutation, closely the reflective power of echo is also very strong, can guarantee to be input to the echoed signal power P of the second receiver 10
inbe far longer than the sensitivity of the second receiver 10, therefore, can effectively survey in-plant target.
This state blind area is compared with normal radar and has been reduced C* △ T/2.Such as; when the fire pulse width of transmitter 5 is 0.1 μ s; are 2 μ s " release times " of the limiter 6 shielding; so existing radar detection just cannot be surveyed the target within the scope of 315m; but while surveying by the scheme of the embodiment of the present invention, just may detect the target (being only the detection blind area that fire pulse width causes) outside 15m.
Although the distance of C* △ T/2 (being 300m in above-mentioned example) seems insignificant to the total detection range of radar, very important in many special application scenarios.Such as, when insect detection radar is surveyed vertically upward when antenna, because most of distribution of insects is in low-latitude flying, by original Detection Techniques, cannot detect, will lose a lot of echo information.
In the embodiment of the present invention, described radar antenna 1 comprises feed-forward type radar antenna, feedback type radar antenna or offset-feed type radar antenna.
As shown in Figure 2: further, the present invention includes radar antenna 1 and be positioned at the transmitting-receiving feeder line passage at described radar antenna 1 focus place; Described transmitting-receiving feeder line passage comprises the transmitting-receiving feed 2 that is positioned at radar antenna 1 focus place; At the focus place of contiguous described radar antenna 1, at least one road is set and receives feeder line passage, described reception feeder line passage comprises the reception feed 8 at contiguous radar antenna 1 focus place, and described reception feed 8 is connected by the input end of the first receiver 7 in receiving feeder line 9 and microwave gating switch 11 and receiving and dispatching feeder line passage.
Described microwave gating switch 11 can be multiselect one selector switch, the echo information that reception feeder line passage receives can be transferred to signal processing terminal system by the first receiver 7, and transmitting-receiving feeder line passage also can be transferred to signal processing terminal system by the first receiver 7 by the echo information receiving.Described signal processing terminal system can adopt signal handling equipment conventional in existing radar-probing system, repeats no more herein.When the first receiver 7 is connected with reception feed 8, reception feeder line 9 by microwave gating switch 11, and while receiving echoed signal, the first receiver 7 receives signal power by receiving feed 8 and reception feeder line 9 is not more than the power that the first receiver 7 can bear, illustrate and can, with reference to the above-mentioned explanation to the second receiver 10, repeat no more herein.
The input end of described the first receiver 7 is also connected with the output terminal of receiving and dispatching the limiter 6 of feeder line passage by microwave gating switch 11, the input end of limiter 6 is connected with transmit-receive switch 4, transmit-receive switch 4 is connected with transmitter 5, and transmit-receive switch 4 is connected with transmitting-receiving feed 2 by transmitting-receiving feeder line 3.
With two-way feeder line, realize a method for high powered radar proximity detection, the method for described proximity detection comprises the steps:
A, transmitting-receiving feeder line passage is set at the focus place of radar antenna 1, and at least one road is set at the focus place of radar antenna 1 receives feeder line passage, described reception feeder line passage comprises reception feed 8 and receives feeder line 9, receives feed 8 and is connected with receiver system by receiving feeder line 9;
Described receiver system comprises the first receiver 7 and the second receiver 10, receiving feed 8 is connected with the input end of the second receiver 10 by receiving feeder line 9, the input end of the first receiver 7 connects limiter 6, limiter 6 is connected with transmit-receive switch 4, transmit-receive switch 4 is connected with transmitter 5, and transmit-receive switch 4 is connected with transmitting-receiving feed 2 by transmitting-receiving feeder line 3.
In another kind of embodiment, receiver system only comprises the first receiver 7, and described reception feed 8 is connected by the input end of the first receiver 7 in receiving feeder line 9 and microwave gating switch 11 and receiving and dispatching feeder line passage.The input end of described the first receiver 7 is also connected with the output terminal of receiving and dispatching the limiter 6 of feeder line passage by microwave gating switch 11, the input end of limiter 6 is connected with transmit-receive switch 4, transmit-receive switch 4 is connected with transmitter 5, and transmit-receive switch 4 is connected with transmitting-receiving feed 2 by transmitting-receiving feeder line 3.
The transmitter 5 of b, transmitting-receiving feeder line passage is by transmitting-receiving feed 2 to radar antenna 1 microwave radiation energy, and radar antenna 1 radiate powerful microwave energy to dimensional orientation;
Specifically emission process is, the highpowerpulse signal that transmitter 5 is launched outputs to backward radar antenna 1 microwave radiation energy of transmitting-receiving feed 2 through transmit-receive switch 4, transmitting-receiving feeder line 3, and radar antenna 1 radiate powerful microwave energy again to dimensional orientation.
C, after the fire pulse width of launching highpowerpulse signal through transmitter 5 and reached before release time of limiter 6 of transmitting-receiving feeder line passage, the microwave signal reflecting by receiving feed 8 receiving radar antennas 1, and by receiving feeder line 9, the echoed signal that receives feed 8 receptions is transferred to signal processing terminal system by receiver system, to realize the detection to close-in target;
From the above, when the powerful pulse signal of transmitter 5 transmitting, limiter 6 need to just can carry out work through a release time, and be △ T release time.Before reaching the release time of limiter 6, in order to realize the detection to close-in target, need to echoed signal be transferred to receiver system by receiving the reception feed 8 of feeder line passage and receiving feeder line 9, and transfer to signal processing terminal system by receiver system, by signal processing terminal system docking, received after the echo signal processing of feed 8 receptions, realize the detection to close-in target.
D, after the release time through limiter 6, the microwave signal reflecting by transmitting-receiving feeder line passage receiving radar antenna 1, through limiter 6, the echoed signal of reception is transferred to signal processing terminal system by receiver system, to realize the detection to required separation distance target.
In described steps d, in the microwave signal reflecting by transmitting-receiving feeder line passage receiving radar antenna 1, when the echoed signal of reception being transferred to signal processing terminal system by receiver system through limiter 6, signal processing terminal system also receives by receiving feed 8, receiving the echoed signal that feeder line 9 transmits.The echoed signal receiving by transmitting-receiving feeder line passage, after signal processing terminal system is processed, can realize the detection of distant object.In the specific implementation, signal processing terminal system is when carrying out long-range detection, can by the echoed signal of transmitting-receiving feeder line passage, process and obtain, also can obtain by receiving the echo signal processing of feeder line passage, signal processing terminal system is known by the art personnel the processing procedure of echoed signal, repeats no more herein.
Described transmitting-receiving feed 2 and receive feed 8 around same axle High Rotation Speed, obtains receiving and dispatching the conical scanning of the transmitting-receiving wave beam that feed 2 is passage, and take and receive the conical scanning of the received beam that feed 8 is passage.
As shown in Figure 3, O point is the center of radar antenna 1, and OF is the sensing (being normal direction) of the central shaft of radar antenna 1, and the sensing of receiving and dispatching the transmitting-receiving wave beam that feed 2 is passage of take is OA, and the angle between the normal of radar antenna 1 is made as α; It is OC that the received beam that the reception feed 7 of take is passage points to, and the angle between the normal of radar antenna 1 is made as β.When transmitting-receiving feed 1, receive feed 8 round the normal of radar antenna 1 during with angular velocity omega High Rotation Speed, have two wave beams to take respectively angle α and β and do round antenna normal the high speed conical scanning that angular velocity is ω.
The characteristic of radar antenna wave beam performance index such as () beam angle, directivity, gains and antenna form, transmitting-receiving feed 2, to receive feed 8 relevant with the locus of radar antenna 1 focal length.Owing to receiving feed 8 than receiving and dispatching the center line of feed 2 away from radar antenna 1, this can cause angle β to be a bit larger tham angle α, and these characteristics are more conducive to the closely detection of moving target.
Suppose α=0.1 °, when projector distance is that L(is assumed to be 2000m) locate, have a moving object M(such as insect M) from direction shown in Fig. 3, fly over the dead ahead of radar antenna 1, if the rotational speed omega of radar antenna 1 and the combination of radar transmitter frequency can allow the wave beam OA(angle be α just) in often turning, over against mobile object M, carry out twice sweep, can calculate well like this movement velocity and the direction of motion of mobile object M.If R(is assumed to be 150m at projector distance) locate a duplicate moving object N(of kinetic characteristic such as insect N) by direction shown in Fig. 3, fly over the dead ahead of radar antenna 1, if continue, with wave beam OA, survey, obviously except the factor of detection blind area, spatial relationship, can find, wave beam does not effectively irradiate target, and detection performance cannot guarantee.Only have with wave beam OC(: with compared with mitre β) carry out conical scanning and just likely effectively survey.
The value of angle β is relevant with distance R, antenna rotation rate ω, the frequency of transmitting and the speed V of moving target that emphasis is surveyed.Therefore, the locus that receives feed 8 can be rationally set as required, the angle β that adjusts its received beam effectively surveys target to desirable position.For surveying the target of multistage emphasis distance, can set up a plurality of receiving cables that are similar to reception feed 8 and the second receiver 10 and realize.
In Fig. 3, suppose antenna rotational speed omega (revolutions per second) just can allow wave beam OC over against moving object N, carry out twice sweep in often turning with the combination of transmission frequency, time T=0.5/ ω of twice sweep, the angle β of wave beam OC, has
β=?arctg(V/ω/2/R)
If wave beam OA(angle is α) also just can in often turning, over against moving object M, carry out twice sweep, the pass of β and α is:
β=arctg(L·tgα/R)
If L=2000m, α=0.1 °, R=150m:
β=arctg(2000·tg0.1/150)=1.33°。
1), to the research emphasis of radar range, be the long-range detection to target in radar detection field, often think:.2), feed departs from the detection performance of antenna Focus Club reduction radar to target; 3), the conical scanning wave beam of mitre, no matter the radar of Precision tracking radar or other purposes is had little significance.
In the embodiment of the present invention, by the focus place at radar antenna 1, arrange simultaneously and receive feeder line passage and transmitting-receiving feeder line passage, by receiving feeder line passage, before the release time that reaches limiter 6, receive reflection echo signal, realize in-plant target detection, understanding mistaken ideas have in the past not only been changed, the frontier of radar antenna feeder research, the research topic that extension makes new advances can also be widened, the radar kind making new advances can be developed accordingly.
The present invention, under the prerequisite sharing with common antenna, receives feeder line passage by least one road is set, and avoids using the limiter 6 shielding, and realizes the detection to point blank target; By the locus of the reception feed 8 that receives feeder line passage is set, rationally adjust the angle that received beam departs from antenna normal direction, and jointly do the technological means of conical scanning with transmitting-receiving feeder line passage, realization is to closely effective detection of moving target characteristic, can solve the excessive technical barrier in high powered radar detection blind area, the detectivity of raising to point blank target also can reduce costs when improving detection performance, reaches beyond thought Effect on Detecting.
Claims (10)
1. with two-way feeder line, realize a system for high powered radar proximity detection, comprise radar antenna (1) and be positioned at the transmitting-receiving feeder line passage at described radar antenna (1) focus place; Described transmitting-receiving feeder line passage comprises the transmitting-receiving feed (2) that is positioned at radar antenna (1) focus place; It is characterized in that: at the focus place of contiguous described radar antenna (1), at least one road is set and receives feeder line passage, described reception feeder line passage comprises the reception feed (8) at contiguous radar antenna (1) focus place, and described reception feed (8) is connected with the second receiver (10) by receiving feeder line (9).
2. the system that realizes high powered radar proximity detection with two-way feeder line according to claim 1, it is characterized in that: described transmitting-receiving feeder line passage also comprises transmit-receive switch (4), transmitter (5), limiter (6) and the first receiver (7), transmit-receive switch (4) is connected with transmitting-receiving feed (2) by transmitting-receiving feeder line (3), transmit-receive switch (4) is connected with transmitter (5), and transmit-receive switch (4) is connected with the input end of the first receiver (7) by limiter (6).
3. the system that realizes high powered radar proximity detection with two-way feeder line according to claim 2, it is characterized in that: when described transmitter (5) carries out signal transmitting by transmitting-receiving feed (2), the second receiver (10) receives signal power by receiving feed (8) and reception feeder line (9) is not more than the power that the second receiver (10) can bear.
4. the system that realizes high powered radar proximity detection with two-way feeder line according to claim 1, is characterized in that: described radar antenna (1) comprises feed-forward type radar antenna, feedback type radar antenna or offset-feed type radar antenna.
5. with two-way feeder line, realize a system for high powered radar proximity detection, comprise radar antenna (1) and be positioned at the transmitting-receiving feeder line passage at described radar antenna (1) focus place; Described transmitting-receiving feeder line passage comprises the transmitting-receiving feed (2) that is positioned at radar antenna (1) focus place; It is characterized in that: at the focus place of contiguous described radar antenna (1), at least one road is set and receives feeder line passage, described reception feeder line passage comprises the reception feed (8) at contiguous radar antenna (1) focus place, and described reception feed (8) is connected by the input end of the first receiver (7) in receiving feeder line (9) and microwave gating switch (11) and receiving and dispatching feeder line passage.
6. with two-way feeder line, realize according to claim 5 the system of high powered radar proximity detection, it is characterized in that: the input end of described the first receiver (7) is also connected with the output terminal of receiving and dispatching the limiter (6) of feeder line passage by microwave gating switch (11), the input end of limiter (6) is connected with transmit-receive switch (4), transmit-receive switch (4) is connected with transmitter (5), and transmit-receive switch (4) is connected with transmitting-receiving feed (2) by transmitting-receiving feeder line (3).
7. with two-way feeder line, realize a method for high powered radar proximity detection, it is characterized in that, the method for described proximity detection comprises the steps:
(a), transmitting-receiving feeder line passage is set at the focus place of radar antenna (1), and at least one road is set at the focus place of radar antenna (1) receives feeder line passage, described reception feeder line passage comprises reception feed (8) and receives feeder line (9), receives feed (8) and is connected with receiver system by receiving feeder line (9);
(b), the transmitter (5) of transmitting-receiving feeder line passage is by transmitting-receiving feed (2) to radar antenna (1) microwave radiation energy, radar antenna (1) radiate powerful microwave energy to dimensional orientation;
(c), after the fire pulse width of launching highpowerpulse signal through transmitter (5) and reached before release time of limiter (6) of transmitting-receiving feeder line passage, the microwave signal reflecting by receiving feed (8) receiving radar antenna (1), and by receiving feeder line (9), the echoed signal that receives feed (8) reception is transferred to signal processing terminal system by receiver system, to realize the detection to close-in target;
(d), after the release time through limiter (6), the microwave signal reflecting by transmitting-receiving feeder line passage receiving radar antenna (1), through limiter (6), the echoed signal of reception is transferred to signal processing terminal system by receiver system, to realize the detection to required separation distance target.
8. with two-way feeder line, realize according to claim 7 the method for high powered radar proximity detection, it is characterized in that: described receiver system comprises the first receiver (7) and the second receiver (10), receiving feed (8) is connected with the input end of the second receiver (10) by receiving feeder line (9), the input end of the first receiver (7) connects limiter (6), limiter (6) is connected with transmit-receive switch (4), transmit-receive switch (4) is connected with transmitter (5), and transmit-receive switch (4) is connected with transmitting-receiving feed (2) by transmitting-receiving feeder line (3).
9. with two-way feeder line, realize according to claim 7 the method for high powered radar proximity detection, it is characterized in that: described transmitting-receiving feed (2) and reception feed (8) are around same axle High Rotation Speed, the conical scanning of the transmitting-receiving wave beam that to obtain receiving and dispatching feed (2) be passage, and take and receive the conical scanning of the received beam that feed (8) is passage.
10. with two-way feeder line, realize according to claim 7 the method for high powered radar proximity detection, it is characterized in that: in described step (d), in the microwave signal reflecting by transmitting-receiving feeder line passage receiving radar antenna (1), when the echoed signal of reception being transferred to signal processing terminal system by receiver system through limiter (6), signal processing terminal system also receives by receiving feed (8), receiving the echoed signal that feeder line (9) transmits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310700510.5A CN103675802B (en) | 2013-12-18 | 2013-12-18 | The system and method for high powered radar proximity detection is realized with two-way feeder line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310700510.5A CN103675802B (en) | 2013-12-18 | 2013-12-18 | The system and method for high powered radar proximity detection is realized with two-way feeder line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103675802A true CN103675802A (en) | 2014-03-26 |
| CN103675802B CN103675802B (en) | 2017-06-09 |
Family
ID=50313941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310700510.5A Active CN103675802B (en) | 2013-12-18 | 2013-12-18 | The system and method for high powered radar proximity detection is realized with two-way feeder line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103675802B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569942A (en) * | 2014-12-18 | 2015-04-29 | 北京无线电计量测试研究所 | Monostation radar target characteristic measurement method for identifying positions of synchronous scattering points |
| CN104569943A (en) * | 2014-12-18 | 2015-04-29 | 北京无线电计量测试研究所 | Method for identifying radar target characteristic measuring synchronous scattering point position of compact range |
| CN104569940A (en) * | 2014-12-18 | 2015-04-29 | 北京无线电计量测试研究所 | Method for determining radar target characteristic measuring synchronous scattering point area of compact range |
| CN110927716A (en) * | 2019-12-11 | 2020-03-27 | 中国航空工业集团公司沈阳飞机设计研究所 | Radar scanning terrain blind spot and blind spot shielding determination method thereof |
| CN117075128A (en) * | 2023-09-11 | 2023-11-17 | 深圳市速腾聚创科技有限公司 | Ranging method, ranging apparatus, electronic device, and computer-readable storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038360A (en) * | 1988-06-02 | 1989-12-27 | 中国国防科技信息中心 | Chinese-character input method using lightpen |
| CN2051358U (en) * | 1989-06-02 | 1990-01-17 | 浙江大学 | Single-aerial multipolarization frequency modulated continous-wave radar |
| CN1808177A (en) * | 2005-01-20 | 2006-07-26 | 株式会社日立制作所 | Automotive radar |
| CN202119908U (en) * | 2011-05-31 | 2012-01-18 | 安徽四创电子股份有限公司 | All-solid-state S-waveband short-range primary surveillance radar |
| CN103064057A (en) * | 2012-12-26 | 2013-04-24 | 北京遥测技术研究所 | Method of improving multipoint time-difference positioning accuracy |
| US20130128257A1 (en) * | 2011-09-15 | 2013-05-23 | Advanced Scientific Concepts Inc. | Automatic range corrected flash ladar camera |
-
2013
- 2013-12-18 CN CN201310700510.5A patent/CN103675802B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038360A (en) * | 1988-06-02 | 1989-12-27 | 中国国防科技信息中心 | Chinese-character input method using lightpen |
| CN2051358U (en) * | 1989-06-02 | 1990-01-17 | 浙江大学 | Single-aerial multipolarization frequency modulated continous-wave radar |
| CN1808177A (en) * | 2005-01-20 | 2006-07-26 | 株式会社日立制作所 | Automotive radar |
| CN202119908U (en) * | 2011-05-31 | 2012-01-18 | 安徽四创电子股份有限公司 | All-solid-state S-waveband short-range primary surveillance radar |
| US20130128257A1 (en) * | 2011-09-15 | 2013-05-23 | Advanced Scientific Concepts Inc. | Automatic range corrected flash ladar camera |
| CN103064057A (en) * | 2012-12-26 | 2013-04-24 | 北京遥测技术研究所 | Method of improving multipoint time-difference positioning accuracy |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569942A (en) * | 2014-12-18 | 2015-04-29 | 北京无线电计量测试研究所 | Monostation radar target characteristic measurement method for identifying positions of synchronous scattering points |
| CN104569943A (en) * | 2014-12-18 | 2015-04-29 | 北京无线电计量测试研究所 | Method for identifying radar target characteristic measuring synchronous scattering point position of compact range |
| CN104569940A (en) * | 2014-12-18 | 2015-04-29 | 北京无线电计量测试研究所 | Method for determining radar target characteristic measuring synchronous scattering point area of compact range |
| CN110927716A (en) * | 2019-12-11 | 2020-03-27 | 中国航空工业集团公司沈阳飞机设计研究所 | Radar scanning terrain blind spot and blind spot shielding determination method thereof |
| CN110927716B (en) * | 2019-12-11 | 2023-02-28 | 中国航空工业集团公司沈阳飞机设计研究所 | Radar scanning terrain blind spot and blind spot shielding determination method thereof |
| CN117075128A (en) * | 2023-09-11 | 2023-11-17 | 深圳市速腾聚创科技有限公司 | Ranging method, ranging apparatus, electronic device, and computer-readable storage medium |
| CN117075128B (en) * | 2023-09-11 | 2024-04-09 | 深圳市速腾聚创科技有限公司 | Ranging method, ranging apparatus, electronic device, and computer-readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103675802B (en) | 2017-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103675802A (en) | System and method for achieving large-power radar short-distance detection with double-path feed line | |
| CN104865567B (en) | Missile-borne frequency modulation continuous wave off-target measurement radar system | |
| CN107121674B (en) | Adaptive strain waveform switch tracks mesh calibration method | |
| CN104502909A (en) | Composite detection system with optics and millimeter-wave radar sharing aperture | |
| CN110501677B (en) | Wide-area compensation millimeter wave radar sensor and use method thereof | |
| CN105116406A (en) | Composite distance measuring instrument and distance measuring method thereof | |
| EP3855211A1 (en) | Multistatic radar utilizing 5g signals | |
| CN110780281A (en) | Optical phased array laser radar system | |
| CN105811113A (en) | K-wave band microstrip patch antenna array | |
| CN101329397B (en) | Method and apparatus for rapidly detecting multi-wave beam | |
| CN108469607A (en) | Unmanned plane detection radar angle-measuring method based on frequency scan antenna | |
| CN103874020A (en) | Ultra-wideband positioning method of single receiver in indirect path environment | |
| CN111562573B (en) | Ultra-low altitude defense radar detection system and method | |
| CN113504517A (en) | Integrated multifunctional automatic radar photoelectric calibration system | |
| CN208751370U (en) | A kind of infrared multi-mode seeker of radar | |
| CN102832462A (en) | Design method of W-wave band single-pulse Cassegrain antenna | |
| US20200158848A1 (en) | Method and apparatus for coded radar signals | |
| CN203630358U (en) | System for realizing short-distance detection of high-power radar by employing two-way feed line | |
| CN109164431A (en) | Lidar transmit-receive coaxial optical engine structure | |
| CN101339248A (en) | Method and system for enlarging ultrasound signal and infrared signal receiving angle and distance | |
| CN110579756A (en) | Distributed optical transmission wave control system | |
| CN105158757B (en) | A kind of radar Multichannel combination control box and its method of work | |
| JPS5911876B2 (en) | stacked beam radar | |
| CA1138077A (en) | Secondary surveillance radar | |
| CN105629242A (en) | Ultrasonic ranging system of environment detection robot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190624 Address after: 214000 Qianqiao Nanshuiqu Village, Huishan District, Wuxi City, Jiangsu Province Patentee after: Wuxi Liyang Electronic Technology Co., Ltd. Address before: Room 302, No. 93, Cotton Lane, Beitang District, Wuxi City, Jiangsu Province Patentee before: Zhang Luping |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210428 Address after: 214000 e-16, Xinwu District, Wuxi City, Jiangsu Province Patentee after: Wuxi tanjida Electronic Technology Co.,Ltd. Address before: 214000 Qianqiao Nanshuiqu Village, Huishan District, Wuxi City, Jiangsu Province Patentee before: Wuxi Liyang Electronic Technology Co.,Ltd. |