CN105022056A - Ship radar system based on optical fiber communication, and signal transmission method thereof - Google Patents
Ship radar system based on optical fiber communication, and signal transmission method thereof Download PDFInfo
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- CN105022056A CN105022056A CN201510391446.6A CN201510391446A CN105022056A CN 105022056 A CN105022056 A CN 105022056A CN 201510391446 A CN201510391446 A CN 201510391446A CN 105022056 A CN105022056 A CN 105022056A
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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
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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
- 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
Abstract
The invention discloses a ship radar system based on optical fiber communication, and a signal transmission method thereof. The radar system comprises radar transceiver function equipment, radar signal display equipment, and distributed-type power supply equipment. The radar transceiver function equipment transmits a microwave signal for radar scanning through a radar antenna, and receives a radar echo signal. The radar signal display equipment is used for displaying radar video information, and the bidirectional signal transmission between the radar transceiver function equipment and the radar signal display equipment is achieved in a mode of double-fiber communication. The signal transmission method comprises the steps: 1, obtaining a radar digital signal through the radar transceiver function equipment, transmitting the radar digital signal to the radar signal display equipment; 2, setting a control signal through the radar signal display equipment, and enabling the control signal to be transmitted to the radar transceiver function equipment. According to the invention, the wiring is easy, the anti-interference capability is strong, and the image quality is high.
Description
Technical field
The present invention relates to a kind of digital radar system, especially relate to a kind of digital radar system based on optical fiber communication, the invention still further relates to a kind of method for transmitting signals of the digital radar system based on optical fiber communication.
Background technology
There are very long shore line, numerous lakes, inland river in China, and corresponding is exactly the huge various ships such as transport fleet, ocean ship, fishing boat, Military Warship with it.In the operation of various ships, radar and be often need equipment with the matching used peripherals of radar, it grasps boats and ships ambient conditions at any time for crewman, improves navigation safety and provides important leverage.Current digital radar peculiar to vessel mainly adopts coaxial cable transmission of video information, and the synchronizing signal between various types of peripheral devices and radar is also transmitted with cable form.Cable due to signal transmission requires that wire diameter is comparatively thick, but its signal transmission distance is shorter, and this just causes, and wiring difficulty is comparatively large, cost is relatively high.In addition, also there is the shortcomings such as poor image quality, transmission band be narrow with cable form signal transmissions such as coaxial cables, deposit in a large number in case in various microwave information, be easy to be interfered in signals transmission.Therefore, how avoiding electromagnetic interference (EMI), improving picture quality is another technical matters of carrying out the solution of Signal transmissions needs with coaxial cable, and this can make wiring difficulty strengthen equally.
Summary of the invention
The object of this invention is to provide a kind of digital radar system peculiar to vessel based on optical fiber communication and method for transmitting signals thereof, radar system has implements convenient, that wiring is easy, antijamming capability is strong, picture quality is high advantage, and its method for transmitting signals has safe and reliable, that execution efficiency is high feature.
In order to solve in prior art the radar system adopting cable to carry out Signal transmissions, to there is wiring difficulty large, signal transmission distance is short, easily by electromagnetic interference (EMI), the technical matters of poor image quality, the invention provides a kind of digital radar system peculiar to vessel based on optical fiber communication and method for transmitting signals thereof, digital radar system peculiar to vessel based on optical fiber communication comprises radar transceiver function device, radar signal display device and distributed power supply equipment, radar transceiver function device launches the microwave signal receiving radar echoed signal that are used for radar scanning by radar antenna, radar signal display device is for showing radar video information, distributed power supply equipment is used for powering to radar transceiver function device and radar signal display device, wherein carry out two-way signaling transmission by two optical fiber communication pattern between radar transceiver function device and radar signal display device.
Further, a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention, wherein, radar transceiver function device comprises radar transceiver unit, signal processing unit and the first optical fiber communication unit,
Radar echo signal is processed into radar intermediate frequency signal by radar transceiver unit, and radar intermediate frequency signal is transferred to signal processing unit,
Radar intermediate frequency signal is processed into radar digital signal by signal processing unit, and radar digital signal is transferred to the first optical fiber communication unit,
Radar digital signal is transferred to radar signal display device by the first optical fiber communication unit; The simultaneously control signal that transmits of the first optical fiber communication unit receiving radar signal apparatus, and control signal is transferred to signal processing unit,
Signal processing unit is transferred to radar transceiver unit after processing control signal,
Radar transceiver unit carries out work according to the control signal of radar signal display device.
Further, a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention, wherein, radar transceiver unit is provided with pulse-series generator, radio frequency source, the first frequency mixer, duplexer, local oscillator, the second frequency mixer, three-mixer, intermediate frequency amplifier
The pulse signal that pulse-series generator produces and the radiofrequency signal that radio frequency source produces carry out through the first frequency mixer the microwave signal that obtains after Frequency mixing processing for radar scanning, and microwave signal is transferred to duplexer and antenna successively and launches,
The clock pulse signal that local oscillator produces and the radiofrequency signal that radio frequency source produces are carried out Frequency mixing processing through the second frequency mixer and are obtained the first mixed frequency signal, and the first mixed frequency signal is transferred to three-mixer, receive by antenna the radar echo signal obtained simultaneously and be also transferred to three-mixer through duplexer; First mixed frequency signal and radar echo signal carry out obtaining the second mixed frequency signal after Frequency mixing processing through three-mixer, and the second mixed frequency signal is transferred to intermediate frequency amplifier,
Intermediate frequency amplifier obtains radar intermediate frequency signal after carrying out amplification process to the second mixed frequency signal, and radar intermediate frequency signal is transferred to signal processing unit.
Further, a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention, wherein, signal processing unit is provided with AD conversion module, FPGA module and digital signal processing module,
AD conversion module is carried out analog to digital conversion to the radar intermediate frequency signal that radar transceiver unit transmits and is obtained radar digital signal, and radar digital signal is transferred to FPGA module,
Radar digital signal stored in SDRAM buffer memory, and is carried out coordinate range swithching by digital signal processing module to the radar digital signal stored in SDRAM buffer memory by FPGA module,
Radar digital signal after carrying out coordinate range swithching is transferred to the first optical fiber communication unit by FPGA module.
Further, a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention, wherein, first optical fiber communication unit is provided with the first receiver module and the first sending module, first receiver module adopts CY7B933, first sending module adopts CY7B923, and the first receiver module is for receiving the control signal sent from radar signal display device, and the first sending module is used for sending radar digital signal to radar signal display device.
Further, a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention, wherein, radar signal display device comprises the second optical fiber communication unit and signal display unit,
Second optical fiber communication unit is provided with the second receiver module and the second sending module, and the second receiver module adopts CY7B933, and the second sending module adopts CY7B923, and signal display unit (05) is provided with ARM module and LED shows and parameter setting module,
The radar digital signal that second receiver module receiving radar device for sending and receiving function device transmits, and radar digital signal is transferred to ARM module, after ARM module processes radar digital signal, Signal transmissions is arranged module to LED display and button,
The control signal of generation for showing radar video information and arranging controling parameters as required, and is transferred to ARM module by LED display and parameter setting module,
ARM module is transferred to the second sending module after processing control signal, by the second sending module, control signal is transferred to radar transceiver function device.
Present invention also offers a kind of method for transmitting signals of the digital radar system peculiar to vessel based on optical fiber communication, comprise the following steps:
Step one, obtaining radar digital signal by radar transceiver function device, and radar digital signal being transferred to radar signal display device, for showing radar video information;
Step 2, control signal is set by radar signal display device, and Signal transmissions will be controlled to radar transceiver function device, for the duty of control radar transceiver function equipment;
It is all undertaken by independent optical-fibre channel that described step one and step 2 carry out Signal transmissions.
Further, the method for transmitting signals of a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention, wherein, specifically comprises the following steps in described step one:
One, the microwave signal being used for radar scanning is launched, and receiving radar echoed signal;
Two, mixing and intermediate frequency amplification process are carried out to radar echo signal, obtain radar intermediate frequency signal;
Three, radar intermediate frequency signal is converted to radar digital signal to go forward side by side row-coordinate range swithching;
Four, the radar number signal after coordinate range swithching will be carried out by optical fiber communication mode transfer to radar signal display device.
Further, the method for transmitting signals of a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention, wherein, specifically comprises the following steps in described step 2:
One, the control signal being used for control radar transceiver function equipment working state is set;
Two, by optical fiber communication pattern, control signal is transferred to radar transceiver function device.
Compared with prior art, a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention and method for transmitting signals thereof have the following advantages: digital radar system peculiar to vessel of the present invention manages unit and the first optical fiber communication unit outward by setting up signal in radar transceiver function device, and it is corresponding correspondingly to set up the second optical fiber communication unit in radar signal display device, two optical fiber communication pattern is established between radar transceiver function device and radar signal display device, due to optical fiber, to have wire diameter little, quality is light, the property point that cost is low, not only make wiring more easy relative to copper axis cable, its cost is also relatively low.The most important thing is, carry out communicating with optical fiber and there is the advantage of long distance of signal transmission, strong anti-interference performance, effectively can avoid the transmission attenuation of signal and the introducing of noise, thus improve picture quality or video definition, the setting height(from bottom) requirement of digital radar antenna peculiar to vessel at different levels can be met.
Below in conjunction with embodiment shown in accompanying drawing, a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention and method for transmitting signals thereof are described in further detail:
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention;
Fig. 2 is a kind of connection diagram based on the first sending module and the second receiver module in the digital radar system peculiar to vessel of optical fiber communication of the present invention;
Fig. 3 is a kind of schematic diagram based on the first sending module and the second sending module in the digital radar system peculiar to vessel of optical fiber communication of the present invention;
Fig. 4 is a kind of schematic diagram based on the first receiver module and the second receiver module in the digital radar system peculiar to vessel of optical fiber communication of the present invention.
Embodiment
First it should be noted that, this invention provides both a kind of digital radar system peculiar to vessel based on optical fiber communication, further provide a kind of method for transmitting signals of the digital radar system peculiar to vessel based on optical fiber communication.Digital radar system peculiar to vessel based on optical fiber communication provided by the invention constructs two-way signaling transmission channel by using optical fiber between radar transceiver function device and radar signal display device.Wherein in radar transceiver function device, add signal processing function, radar simulation signal transacting is become digital signal, and in the mode of optical fiber communication, radar digital signal is sent to radar signal display device, to show image or the video information of radar.The control signal that the radar signal of radar transceiver function device detecting simultaneously display device is sent, and correspondingly process, to run according to control signal.In this course, radar signal display device only with the mode receiving radar signal of optical fiber communication, need show radar image for LCD; And the control commands such as range, gain, sleet suppression, wave suppression are set by man-machine interface, send to radar transceiver function device in the mode of control signal by optical fiber, thus simplify the digitized processing of bulk redundancy.
As the embodiment of a kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention, as shown in Figure 1, comprise radar transceiver function device generally, radar signal display device and distributed power supply equipment, radar transceiver function device launches the microwave signal receiving radar echoed signal that are used for radar scanning by radar antenna, radar signal display device is for showing radar video information, distributed power supply equipment is used for powering to radar transceiver function device and radar signal display device, wherein carry out two-way signaling transmission by two optical fiber communication pattern between radar transceiver function device and radar signal display device.
Radar transceiver function device comprises radar transceiver unit 01, signal processing unit 02 and the first optical fiber communication unit 03.Radar echo signal is processed into radar intermediate frequency signal by radar transceiver unit 01, and radar intermediate frequency signal is transferred to signal processing unit 02; Radar intermediate frequency signal is processed into radar digital signal by signal processing unit 02, and radar digital signal is transferred to the first optical fiber communication unit 03; Radar digital signal is transferred to radar signal display device by the first optical fiber communication unit 03, simultaneously the control signal that transmits of the first optical fiber communication unit 03 receiving radar signal apparatus, and control signal is transferred to signal processing unit 02; Be transferred to radar transceiver unit 01 after signal processing unit 02 pair of control signal processes, radar transceiver unit 01 carries out work according to the control signal of radar signal display device.
Radar transceiver unit 01 is provided with pulse-series generator, radio frequency source, the first frequency mixer, duplexer, local oscillator, the second frequency mixer, three-mixer, intermediate frequency amplifier.The pulse signal that pulse-series generator produces and the radiofrequency signal that radio frequency source produces carry out through the first frequency mixer the microwave signal that obtains after Frequency mixing processing for radar scanning, and microwave signal is transferred to duplexer and antenna successively and launches; The clock pulse signal that local oscillator produces and the radiofrequency signal that radio frequency source produces are carried out Frequency mixing processing through the second frequency mixer and are obtained the first mixed frequency signal, and the first mixed frequency signal is transferred to three-mixer, receive by antenna the radar echo signal obtained simultaneously and be also transferred to three-mixer through duplexer; First mixed frequency signal and radar echo signal carry out obtaining the second mixed frequency signal after Frequency mixing processing through three-mixer, and the second mixed frequency signal is transferred to intermediate frequency amplifier; Intermediate frequency amplifier obtains radar intermediate frequency signal after carrying out amplification process to the second mixed frequency signal, and radar intermediate frequency signal is transferred to signal processing unit 02.
Signal processing unit 02 is provided with AD conversion module, FPGA module and digital signal processing module.AD conversion module is carried out analog to digital conversion to the radar intermediate frequency signal that radar transceiver unit 01 transmits and is obtained radar digital signal, and radar digital signal is transferred to FPGA module; Radar digital signal stored in SDRAM buffer memory, is carried out coordinate range swithching by digital signal processing module to the radar digital signal stored in SDRAM buffer memory by FPGA module; Then after FPGA module will carry out coordinate range swithching, radar digital signal is transferred to the first optical fiber communication unit 03.In the present invention, signal processing unit 02 is carrying out in digitized processing process, and the main EP1C6Q240 of altera corp that adopts carries out logic control.
First optical fiber communication unit 03 is provided with the first receiver module and the first sending module, and the first receiver module is for receiving the control signal sent from radar signal display device, and the first sending module is used for sending radar digital signal to radar signal display device.
Radar signal display device comprises the second optical fiber communication unit 04 and signal display unit 05.Second optical fiber communication unit 04 is provided with the second receiver module and the second sending module, and signal display unit 05 is provided with ARM module and LED shows and parameter setting module.The radar digital signal that second receiver module receiving radar device for sending and receiving function device transmits, and radar digital signal is transferred to ARM module, after ARM module processes radar digital signal, Signal transmissions is arranged module to LED display and button; The control signal of generation for showing radar video information and arranging controling parameters as required, and is transferred to ARM module by LED display and parameter setting module; ARM module is transferred to the second sending module after processing control signal, by the second sending module, control signal is transferred to radar transceiver function device.
In the present invention, the first receiver module and the second receiver module all adopt CY7B933, and the first sending module and the second sending module all adopt CY7B923.As shown in Figures 2 to 4, communication process between first sending module and the second receiver module is as described below: the first sending module is by [T_D0 ... T_D7] pin receives the radar digital signal that transmits of FPGA module, after internal data process, be transferred to the second receiver module by TX+, TX-pin; Second receiver module passes through RECE+, RECE-pin receiving radar digital signal, after internal data process, by [R_D0 ... RD7] pin is transferred to ARM module.Communication process between second sending module and the first receiver module is as described below: the second sending module is by [T_D0 ... T_D7] pin receives the control signal that ARM module transmits, after internal data process, be transferred to the first receiver module by TX+, TX-pin; First receiver module passes through RECE+, RECE-pin reception control signal, after internal data process, by [R_D0 ... RD7] pin is transferred to FPGA module.As space is limited, other pins in CY7B933 module and CY7B923 module are not described here, but are known for a person skilled in the art, be readily appreciated that, and implement smoothly.
A kind of digital radar system peculiar to vessel based on optical fiber communication of the present invention, unit and the first optical fiber communication unit is managed outward by setting up signal in radar transceiver function device, and it is corresponding correspondingly to set up the second optical fiber communication unit in radar signal display device, two optical fiber communication pattern is established between radar transceiver function device and radar signal display device, because optical fiber has the property point that wire diameter is little, quality is light, cost is low, not only make wiring more easy relative to copper axis cable, its cost is also relatively low.The most important thing is, carrying out communicating with optical fiber has the advantage of long distance of signal transmission, strong anti-interference performance, effectively can avoid the transmission attenuation of signal and the introducing of noise, thus improves picture quality or video definition.Meanwhile, by two optical fiber communication pattern between radar transceiver function device and radar display unit, radar signal and control information adopt different optical-fibre channels to transmit respectively, drastically increase signaling rate, enhance real-time response efficiency.
Present invention also offers the method for transmitting signals of the digital radar system peculiar to vessel based on optical fiber communication, specifically comprise the following steps:
Step one, obtaining radar digital signal by radar transceiver function device, and radar digital signal being transferred to radar signal display device, for showing radar video information;
Step 2, control signal is set by radar signal display device, and Signal transmissions will be controlled to radar transceiver function device, for the duty of control radar transceiver function equipment;
It is all undertaken by independent optical-fibre channel that described step one and step 2 carry out Signal transmissions.
Specifically comprise the following steps in above-mentioned steps one:
One, the microwave signal being used for radar scanning is launched, and receiving radar echoed signal;
Two, mixing and intermediate frequency amplification process are carried out to radar echo signal, obtain radar intermediate frequency signal;
Three, radar intermediate frequency signal is converted to radar digital signal to go forward side by side row-coordinate range swithching;
Four, the radar number signal after coordinate range swithching will be carried out by optical fiber communication mode transfer to radar signal display device.
Specifically comprise the following steps in above-mentioned steps two:
One, the control signal being used for control radar transceiver function equipment working state is set;
Two, by optical fiber communication pattern, control signal is transferred to radar transceiver function device.
Above embodiment is only the description carried out the preferred embodiment of the present invention; the restriction not request protection domain of the present invention carried out; under the prerequisite not departing from design concept of the present invention and spirit; the various forms of distortion that this area engineering technical personnel make according to technical scheme of the present invention, all should fall in the determined protection domain of claims of the present invention.
Claims (9)
1. the digital radar system peculiar to vessel based on optical fiber communication, comprise radar transceiver function device, radar signal display device and distributed power supply equipment, radar transceiver function device launches the microwave signal receiving radar echoed signal that are used for radar scanning by radar antenna, radar signal display device is for showing radar video information, distributed power supply equipment is used for powering to radar transceiver function device and radar signal display device, it is characterized in that: between described radar transceiver function device and radar signal display device, carry out two-way signaling transmission by two optical fiber communication pattern.
2. according to a kind of digital radar system peculiar to vessel based on optical fiber communication according to claim 1, it is characterized in that: described radar transceiver function device comprises radar transceiver unit (01), signal processing unit (02) and the first optical fiber communication unit (03)
Radar echo signal is processed into radar intermediate frequency signal by radar transceiver unit (01), and radar intermediate frequency signal is transferred to signal processing unit (02),
Radar intermediate frequency signal is processed into radar digital signal by signal processing unit (02), and radar digital signal is transferred to the first optical fiber communication unit (03),
Radar digital signal is transferred to radar signal display device by the first optical fiber communication unit (03); The simultaneously control signal that transmits of the first optical fiber communication unit (03) receiving radar signal apparatus, and control signal is transferred to signal processing unit (02),
Radar transceiver unit (01) is transferred to after signal processing unit (02) processes control signal,
Radar transceiver unit (01) carries out work according to the control signal of radar signal display device.
3. according to a kind of digital radar system peculiar to vessel based on optical fiber communication according to claim 2, it is characterized in that: described radar transceiver unit (01) is provided with pulse-series generator, radio frequency source, the first frequency mixer, duplexer, local oscillator, the second frequency mixer, three-mixer, intermediate frequency amplifier
The pulse signal that pulse-series generator produces and the radiofrequency signal that radio frequency source produces carry out through the first frequency mixer the microwave signal that obtains after Frequency mixing processing for radar scanning, and microwave signal is transferred to duplexer and antenna successively and launches,
The clock pulse signal that local oscillator produces and the radiofrequency signal that radio frequency source produces are carried out Frequency mixing processing through the second frequency mixer and are obtained the first mixed frequency signal, and the first mixed frequency signal is transferred to three-mixer, receive by antenna the radar echo signal obtained simultaneously and be also transferred to three-mixer through duplexer; First mixed frequency signal and radar echo signal carry out obtaining the second mixed frequency signal after Frequency mixing processing through three-mixer, and the second mixed frequency signal is transferred to intermediate frequency amplifier,
Intermediate frequency amplifier obtains radar intermediate frequency signal after carrying out amplification process to the second mixed frequency signal, and radar intermediate frequency signal is transferred to signal processing unit (02).
4., according to a kind of digital radar system peculiar to vessel based on optical fiber communication according to claim 2, it is characterized in that: described signal processing unit (02) is provided with AD conversion module, FPGA module and digital signal processing module,
AD conversion module is carried out analog to digital conversion to the radar intermediate frequency signal that radar transceiver unit (01) transmits and is obtained radar digital signal, and radar digital signal is transferred to FPGA module,
Radar digital signal stored in SDRAM buffer memory, and is carried out coordinate range swithching by digital signal processing module to the radar digital signal stored in SDRAM buffer memory by FPGA module,
Radar digital signal after carrying out coordinate range swithching is transferred to the first optical fiber communication unit (03) by FPGA module.
5. according to a kind of digital radar system peculiar to vessel based on optical fiber communication according to claim 2, it is characterized in that: described first optical fiber communication unit (03) is provided with the first receiver module and the first sending module, first receiver module adopts CY7B933, first sending module adopts CY7B923, first receiver module is for receiving the control signal sent from radar signal display device, and the first sending module is used for sending radar digital signal to radar signal display device.
6., according to a kind of digital radar system peculiar to vessel based on optical fiber communication according to claim 1, it is characterized in that: described radar signal display device comprises the second optical fiber communication unit (04) and signal display unit (05),
Second optical fiber communication unit (04) is provided with the second receiver module and the second sending module, second receiver module adopts CY7B933, second sending module adopts CY7B923, and signal display unit (05) is provided with ARM module and LED shows and parameter setting module
The radar digital signal that second receiver module receiving radar device for sending and receiving function device transmits, and radar digital signal is transferred to ARM module, after ARM module processes radar digital signal, Signal transmissions is arranged module to LED display and button,
The control signal of generation for showing radar video information and arranging controling parameters as required, and is transferred to ARM module by LED display and parameter setting module,
ARM module is transferred to the second sending module after processing control signal, by the second sending module, control signal is transferred to radar transceiver function device.
7., based on a method for transmitting signals for the digital radar system peculiar to vessel of optical fiber communication, it is characterized in that, comprise the following steps:
Step one, obtaining radar digital signal by radar transceiver function device, and radar digital signal being transferred to radar signal display device, for showing radar video information;
Step 2, control signal is set by radar signal display device, and Signal transmissions will be controlled to radar transceiver function device, for the duty of control radar transceiver function equipment;
It is all undertaken by independent optical-fibre channel that described step one and step 2 carry out Signal transmissions.
8., according to the method for transmitting signals of a kind of digital radar system peculiar to vessel based on optical fiber communication according to claim 7, it is characterized in that, specifically comprise the following steps in described step one:
One, the microwave signal being used for radar scanning is launched, and receiving radar echoed signal;
Two, mixing and intermediate frequency amplification process are carried out to radar echo signal, obtain radar intermediate frequency signal;
Three, radar intermediate frequency signal is converted to radar digital signal to go forward side by side row-coordinate range swithching;
Four, the radar number signal after coordinate range swithching will be carried out by optical fiber communication mode transfer to radar signal display device.
9., according to the method for transmitting signals of a kind of digital radar system peculiar to vessel based on optical fiber communication according to claim 7, it is characterized in that, specifically comprise the following steps in described step 2:
One, the control signal being used for control radar transceiver function equipment working state is set;
Two, by optical fiber communication pattern, control signal is transferred to radar transceiver function device.
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| CN105824020A (en) * | 2016-03-12 | 2016-08-03 | 浙江大学 | Subcarrier-modulation-based continuous wave Doppler radar sensor and motion demodulation method |
| CN105824020B (en) * | 2016-03-12 | 2018-06-12 | 浙江大学 | The continuous wave Doppler radar sensor of subcarrier modulation and movement demodulation method |
| CN108594183A (en) * | 2018-07-17 | 2018-09-28 | 南京俊禄科技有限公司 | A kind of Shipboard Radar System based on network transmission |
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