CN109507660B - Multistage radar cascade detection system and method - Google Patents
Multistage radar cascade detection system and method Download PDFInfo
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- CN109507660B CN109507660B CN201811374486.XA CN201811374486A CN109507660B CN 109507660 B CN109507660 B CN 109507660B CN 201811374486 A CN201811374486 A CN 201811374486A CN 109507660 B CN109507660 B CN 109507660B
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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
- G01S13/04—Systems determining presence of a target
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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
Abstract
The invention discloses a multistage radar cascade detection system and a method, wherein the system comprises: the main control radar module is configured to issue a detection instruction and an antenna rotation operation instruction, send the detection instruction and the antenna rotation operation instruction to the first-stage radar directional antenna module in a radar wave form, and receive and display a detection result; the radar directional antenna module is configured to receive the radar waves of the main control radar module or the upper-stage radar directional antenna module, transmit the radar waves to the relay processor, and transmit the radar waves to the lower-stage radar directional antenna module or the detection radar processor through the relay processor; the last-stage radar directional antenna module receives the detection result and transmits the detection result to the main control radar module step by step; the detection radar processor is configured to receive radar waves of the last-stage radar directional antenna module, process the radar waves, send the radar waves to the detection radar antenna, receive target return signals received by the detection radar antenna, and transmit detection results to the last-stage radar directional antenna module after processing.
Description
Technical Field
The disclosure belongs to the technical field of radar detection, and relates to a multistage radar cascade detection system and method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
At present, a long-range early warning radar is a early warning radar for detecting a submarine-launched ground-attacking trajectory missile. The U.S. has a paving claw which adopts a double-sided array radar, all devices are 32 meters high, the detection distance of the radar to a submarine projectile channel missile with the cross section of 10 square meters can reach 5550 kilometers, the working frequency is 420-450 MHz (the wavelength is about 70 centimeters), the average power is 145 kilowatts, and the peak value: 582.4 kw, two circular radio fronts are angled at 60 ° to each other, each front is tilted back by 20 °, has a diameter of 30m, consists of 2000 array elements, and is swept once in 6 seconds. The former Soviet Union Volneri-DM measures distance 6000 km, width 35 m, frequency 30-300 MHz, and adopts 12000 array elements. The cost of the Sudd radar is 10 billion dollars, the antenna array surface is 9.2 square meters, the X wave band (3 cm wavelength) is adopted, and 30464 antenna elements are provided. The mechanical rotation range is as follows: -178 ° - +178 °, range of elevation maneuvers: 0 to 90 degrees, the radar pair has a target with a section of 1 square meter, and the detection distance is 1200 kilometers. The expected location of the warhead is identified at a distance of 580 kilometers.
The radar working principle is as follows: and transmitting electromagnetic waves, reflecting the electromagnetic waves by the target, and returning and receiving the electromagnetic waves. And determining the distance, the direction and the size of the detection target according to the time, the direction and the size of the image. The transmitting power is proportional to 4 times of the square of the detection distance, each country is safe, the detection distance is increased, the transmitting power is increased, and the limit of human beings is almost reached. Although the radar parameters are almost reaching their limits, they do not meet the requirements of people. Especially, the long-range early warning radar has huge physique and large reflecting surface, and is easy to be found and destroyed.
The satellite and the unmanned aerial vehicle detect and emit radar waves in centimeter wave bands. The diameter of the antenna housing of the large early warning machine such as an E-3 early warning machine is 9.1 meters, and the height of the antenna housing is 1.8 meters. Radar operating band: 300MHz to-3 GHz; the wavelength is as follows: 1 decimeter to 10 decimeters. The detection distance is 320 kilometers. The ground radar has: centimeter, decimeter, meter; the corresponding frequency is, meter band: 30MHz to 300 MHz; the decimetric wave band is as follows: 300MHz to-3 GHz; centimeter wave: corresponding to frequencies 3 GHz-30 GHz.
At present, radars are mainly used for centimeters and decimeters, and airplane stealth is mainly used for centimeter and decimeter radar wave stealth. Cannot be hidden by meter wave radar. Therefore, the development of the meter-wave radar is started in various countries for defending stealth airplanes.
The radar, especially the long-range early warning radar, has higher and higher resolution ratio and longer detection distance. The radar wavelength of the airborne radar and the satellite radar is shorter, and the purpose is to reduce the size of an antenna and reduce the weight of the radar. Essentially in the x-band, at wavelengths around 3 cm, at frequencies from 8 to 12ghz, and in the wavelength range from 2.5 to 3.75 cm. The working principle is as follows: and transmitting an x-waveband electromagnetic wave, wherein the electromagnetic wave meets an object, is reflected back and is received. The distance of the target is judged according to the time of the wave back and forth, and the direction of the target can be judged according to the wave returning direction.
The meter-wave radar has long detection distance but low precision. The accuracy of decimeter and centimeter wave radar is improved, but the detection distance is general. The millimeter wave radar has high precision, but the detection distance is short. The chasing detection distance of people is large, and the accuracy is high. The prior art can not meet the requirements of people.
Disclosure of Invention
In view of the deficiencies in the prior art, one or more embodiments of the present disclosure provide a multistage radar cascade detection system and method, which effectively achieve high detection accuracy while achieving a large detection distance.
In accordance with one aspect of one or more embodiments of the present disclosure, a multi-stage radar cascade detection system is provided.
A multi-stage radar cascade detection system, the system comprising: the system comprises a main control radar module, at least one stage of radar directional antenna module, a relay processor, a detection radar processor and a detection radar antenna;
the main control radar module is configured to issue a detection instruction and an antenna rotation operation instruction, send the detection instruction and the antenna rotation operation instruction to the first-stage radar directional antenna module in a radar wave form, and receive and display a detection result;
the radar directional antenna module is configured to receive the radar waves of the main control radar module or the upper-stage radar directional antenna module, transmit the radar waves to the relay processor, and transmit the radar waves to the lower-stage radar directional antenna module or the detection radar processor through the relay processor; the last-stage radar directional antenna module receives the detection result and transmits the detection result to the main control radar module step by step;
the detection radar processor is configured to receive radar waves of the last-stage radar directional antenna module, process the radar waves, send the radar waves to the detection radar antenna, receive target return signals received by the detection radar antenna, and transmit detection results to the last-stage radar directional antenna module after processing.
Furthermore, the main control radar module serves as an information source, and stores, encodes and encrypts the detection instruction and the antenna rotation operation instruction before sending the detection instruction and the antenna rotation operation instruction to the radar directional antenna.
Further, the radar directional antenna module comprises a directional transmitting antenna and a directional receiving antenna; a first-stage directional transmitting antenna of the first-stage radar directional antenna module receives the radar waves sent by the main control radar module and sends the radar waves to a first-stage directional receiving antenna; the first stage directional receiving antenna receives radar waves and transmits the radar waves to the relay processor, and the relay processor transmits the radar waves to a directional transmitting antenna of a next stage radar directional antenna module or a detection radar processor.
Further, the relay processor is also configured to perform filtering processing, balancing processing and method processing on the received radar wave.
Furthermore, the directional transmitting antenna comprises a radar controller which is used as an information sink and used for receiving transmitted radar wave signals and carrying out decoding, decoding and decryption processing.
In accordance with an aspect of one or more embodiments of the present disclosure, there is provided a multi-stage radar cascade detection method.
A multi-stage radar cascade detection method is based on a multi-stage radar cascade detection system and comprises the following steps:
the main control radar module issues a detection instruction and an antenna rotation operation instruction and sends the detection instruction and the antenna rotation operation instruction to the first-stage radar directional antenna module in a radar wave form;
the radar directional antenna module receives the master control radar module and transmits the master control radar module to the relay processor, and the relay processor transmits radar waves to the next level of radar directional antenna module and transmits the radar waves to the detection radar processor step by step;
the detection radar processor receives radar waves of the last-stage radar directional antenna module, processes the radar waves, sends the radar waves to the detection radar antenna, receives a target return signal received by the detection radar antenna, and transmits a detection result to the last-stage radar directional antenna module;
the last-stage radar directional antenna module receives the detection result and transmits the detection result to the main control radar module step by step;
and the master control radar module receives and displays the detection result.
Furthermore, the main control radar module serves as an information source, and stores, encodes and encrypts the detection instruction and the antenna rotation operation instruction before sending the detection instruction and the antenna rotation operation instruction to the radar directional antenna.
Furthermore, a first-stage directional transmitting antenna of the first-stage radar directional antenna module receives the radar waves sent by the main control radar module and sends the radar waves to a first-stage directional receiving antenna; the first stage directional receiving antenna receives radar waves and transmits the radar waves to the relay processor, and the relay processor transmits the radar waves to a directional transmitting antenna of a next stage radar directional antenna module or a detection radar processor.
Further, the relay processor performs filtering processing, balancing processing and method processing on the received radar waves.
Furthermore, the radar controller of the directional transmitting antenna is used as an information sink to receive transmitted radar wave signals and perform decoding, decoding and decryption processing.
The beneficial effect of this disclosure:
according to the multistage radar cascade detection system and method, the detection distance of the radar can be increased and the detection precision can be improved through the cascade of the multistage radar. And the cost is low, and the effect is good.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a block diagram of a multi-stage radar cascade detection system in accordance with one or more embodiments;
fig. 2 is a flow diagram of a method for multi-level radar cascade detection in accordance with one or more embodiments.
The specific implementation mode is as follows:
technical solutions in one or more embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in one or more embodiments of the present disclosure, and it is apparent that the described embodiments are only a part of the embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art based on one or more embodiments of the disclosure without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It is noted that the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods and systems according to various embodiments of the present disclosure. It should be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Without conflict, the embodiments and features of the embodiments in the present disclosure may be combined with each other, and the present disclosure will be further described with reference to the drawings and the embodiments.
In view of the deficiencies in the prior art, one or more embodiments of the present disclosure provide a multistage radar cascade detection system and method, which effectively achieve high detection accuracy while achieving a large detection distance.
In accordance with one aspect of one or more embodiments of the present disclosure, a multi-stage radar cascade detection system is provided.
A multi-stage radar cascade detection system, the system comprising: the system comprises a main control radar module, at least one stage of radar directional antenna module, a relay processor, a detection radar processor and a detection radar antenna;
the main control radar module is configured to issue a detection instruction and an antenna rotation operation instruction, send the detection instruction and the antenna rotation operation instruction to the first-stage radar directional antenna module in a radar wave form, and receive and display a detection result;
the radar directional antenna module is configured to receive the radar waves of the main control radar module or the upper-stage radar directional antenna module, transmit the radar waves to the relay processor, and transmit the radar waves to the lower-stage radar directional antenna module or the detection radar processor through the relay processor; the last-stage radar directional antenna module receives the detection result and transmits the detection result to the main control radar module step by step;
the detection radar processor is configured to receive radar waves of the last-stage radar directional antenna module, process the radar waves, send the radar waves to the detection radar antenna, receive target return signals received by the detection radar antenna, and transmit detection results to the last-stage radar directional antenna module after processing.
As shown in fig. 1, a multi-stage radar cascade detection system is provided with a one-stage radar directional antenna module.
Furthermore, the main control radar module serves as an information source, and stores, encodes and encrypts the detection instruction and the antenna rotation operation instruction before sending the detection instruction and the antenna rotation operation instruction to the radar directional antenna.
Further, the radar directional antenna module comprises a directional transmitting antenna and a directional receiving antenna; a first-stage directional transmitting antenna of the first-stage radar directional antenna module receives the radar waves sent by the main control radar module and sends the radar waves to a first-stage directional receiving antenna; the first stage directional receiving antenna receives radar waves and transmits the radar waves to the relay processor, and the relay processor transmits the radar waves to a directional transmitting antenna of a next stage radar directional antenna module or a detection radar processor.
Further, the relay processor is also configured to perform filtering processing, balancing processing and method processing on the received radar wave.
Furthermore, the directional transmitting antenna comprises a radar controller which is used as an information sink and used for receiving transmitted radar wave signals and carrying out decoding, decoding and decryption processing.
In accordance with an aspect of one or more embodiments of the present disclosure, there is provided a multi-stage radar cascade detection method.
A multi-stage radar cascade detection method is based on a multi-stage radar cascade detection system and comprises the following steps:
the main control radar module issues a detection instruction and an antenna rotation operation instruction and sends the detection instruction and the antenna rotation operation instruction to the first-stage radar directional antenna module in a radar wave form;
the radar directional antenna module receives the master control radar module and transmits the master control radar module to the relay processor, and the relay processor transmits radar waves to the next level of radar directional antenna module and transmits the radar waves to the detection radar processor step by step;
the detection radar processor receives radar waves of the last-stage radar directional antenna module, processes the radar waves, sends the radar waves to the detection radar antenna, receives a target return signal received by the detection radar antenna, and transmits a detection result to the last-stage radar directional antenna module; and the detection radar processor controls the rotation direction and the elevation angle of the detection antenna according to the detection instruction and the antenna rotation operation instruction.
The last-stage radar directional antenna module receives the detection result and transmits the detection result to the main control radar module step by step;
and the master control radar module receives and displays the detection result. The computer calculates, processes and analyzes the transmitting signal and the return signal. The results are displayed on a screen.
And the operator judges the target to be measured according to the radar reflected wave information on the display.
Furthermore, the main control radar module serves as an information source, and stores, encodes and encrypts the detection instruction and the antenna rotation operation instruction before sending the detection instruction and the antenna rotation operation instruction to the radar directional antenna.
Furthermore, a first-stage directional transmitting antenna of the first-stage radar directional antenna module receives the radar waves sent by the main control radar module and sends the radar waves to a first-stage directional receiving antenna; the first stage directional receiving antenna receives radar waves and transmits the radar waves to the relay processor, and the relay processor transmits the radar waves to a directional transmitting antenna of a next stage radar directional antenna module or a detection radar processor.
Further, the relay processor performs filtering processing, balancing processing and method processing on the received radar waves.
Furthermore, the radar controller of the directional transmitting antenna is used as an information sink to receive transmitted radar wave signals and perform decoding, decoding and decryption processing.
The multistage radar cascade detection system and the multistage radar cascade detection method can be used for land radar double-range design, and improve radar detection distance and detection precision.
The multistage radar cascade detection system and the method can also be used for the double-range of the early warning radar, improve the detection precision of the early warning radar and have a short detection distance. After the multiplication technology is adopted, the detection distance is increased, and the detection precision is improved.
The beneficial effect of this disclosure:
according to the multistage radar cascade detection system and method, the detection distance of the radar can be increased and the detection precision can be improved through the cascade of the multistage radar. And the cost is low, and the effect is good.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A multi-stage radar cascade detection system, comprising: the system comprises a main control radar module, at least one stage of radar directional antenna module, a relay processor, a detection radar processor and a detection radar antenna;
the main control radar module is configured to issue a detection instruction and an antenna rotation operation instruction, send the detection instruction and the antenna rotation operation instruction to the first-stage radar directional antenna module in a radar wave form, and receive and display a detection result;
the radar directional antenna module is configured to receive the radar waves of the main control radar module or the upper-stage radar directional antenna module, transmit the radar waves to the relay processor, and transmit the radar waves to the lower-stage radar directional antenna module or the detection radar processor through the relay processor; the last-stage radar directional antenna module receives the detection result and transmits the detection result to the main control radar module step by step;
the detection radar processor is configured to receive radar waves of the last-stage radar directional antenna module, process the radar waves, send the radar waves to the detection radar antenna, receive target return signals received by the detection radar antenna, and transmit detection results to the last-stage radar directional antenna module after processing.
2. The multi-stage radar cascading detection system of claim 1, wherein the master radar module serves as a source for storing, encoding and encrypting the detection instructions and the antenna rotation operation instructions before sending the detection instructions and the antenna rotation operation instructions to the radar directional antenna.
3. The multi-stage radar cascade detection system of claim 1, wherein the radar directional antenna module comprises a directional transmit antenna and a directional receive antenna; a first-stage directional transmitting antenna of the first-stage radar directional antenna module receives the radar waves sent by the main control radar module and sends the radar waves to a first-stage directional receiving antenna; the first stage directional receiving antenna receives radar waves and transmits the radar waves to the relay processor, and the relay processor transmits the radar waves to a directional transmitting antenna of a next stage radar directional antenna module or a detection radar processor.
4. The multi-stage radar cascade detection system of claim 1, wherein the relay processor is further configured to perform filtering, balancing, and methods on the received radar waves.
5. The multi-stage radar cascade detection system of claim 1, wherein the directional transmitting antenna comprises a radar controller, and the radar controller acts as a signal sink, receives the transmitted radar wave signal, and decodes, decodes and decrypts the received radar wave signal.
6. A multistage radar cascade detection method based on a multistage radar cascade detection system according to any one of claims 1 to 5, comprising:
the main control radar module issues a detection instruction and an antenna rotation operation instruction and sends the detection instruction and the antenna rotation operation instruction to the first-stage radar directional antenna module in a radar wave form;
the radar directional antenna module receives the master control radar module and transmits the master control radar module to the relay processor, and the relay processor transmits radar waves to the next level of radar directional antenna module and transmits the radar waves to the detection radar processor step by step;
the detection radar processor receives radar waves of the last-stage radar directional antenna module, processes the radar waves, sends the radar waves to the detection radar antenna, receives a target return signal received by the detection radar antenna, and transmits a detection result to the last-stage radar directional antenna module;
the last-stage radar directional antenna module receives the detection result and transmits the detection result to the main control radar module step by step;
and the master control radar module receives and displays the detection result.
7. The multi-stage radar cascade detection method according to claim 6, wherein the master radar module is used as a source to store, encode and encrypt the detection command and the antenna rotation operation command before sending the detection command and the antenna rotation operation command to the radar directional antenna.
8. The multi-stage radar cascade detection method according to claim 6, wherein a first-stage directional transmitting antenna of the first-stage radar directional antenna module receives the radar waves sent by the master radar module and sends the radar waves to a first-stage directional receiving antenna; the first stage directional receiving antenna receives radar waves and transmits the radar waves to the relay processor, and the relay processor transmits the radar waves to a directional transmitting antenna of a next stage radar directional antenna module or a detection radar processor.
9. The multi-stage radar cascade detection method of claim 6, wherein the relay processor performs filtering, balancing and method processing on the received radar waves.
10. The multi-stage radar cascade detection method as claimed in claim 6, wherein the radar controller of the directional transmitting antenna acts as a signal sink, receives the transmitted radar wave signal, and performs decoding, decoding and decryption processes.
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