CN105974379B - A kind of device that realizing artificial antenna revolving speed and implementation method - Google Patents
A kind of device that realizing artificial antenna revolving speed and implementation method Download PDFInfo
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- CN105974379B CN105974379B CN201610307045.2A CN201610307045A CN105974379B CN 105974379 B CN105974379 B CN 105974379B CN 201610307045 A CN201610307045 A CN 201610307045A CN 105974379 B CN105974379 B CN 105974379B
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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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of device for realizing artificial antenna revolving speed and implementation methods, it includes antenna, and radar source output terminal is connect with numerical control microwave switch input terminal, and numerical control microwave switch output end is connect with electrically controlled attenuator input terminal；Clock vibration output end is connect with FPGA control circuit reference clock end, output end is connect FPGA control circuit with the control terminal of numerical control microwave switch all the way, the connection of the input terminal of FPGA control circuit another output end and digital analog converter, the output end of digital analog converter and the control terminal of electrically controlled attenuator connect, and electrically controlled attenuator output end is connect with aerial signal input terminal；The present invention solves the airborne radar signal simulator artificial antenna revolving speed of the prior art, and existing circuit structure is complicated, the technical problems such as anti-interference difference and use cost height.
Description
Technical field
The invention belongs to airborne radar signal imitation technology more particularly to a kind of device for realizing artificial antenna revolving speed and realities
Existing method.
Background technique
The difference according to its function of airborne radar signal simulator includes linear frequency modulation, generates double agile signals and simulation
Antenna rotation rate etc., however to realize the function of artificial antenna revolving speed, it needs to connect energy in airborne radar signal simulator output end
The antenna enough rotated will realize that the rotation of antenna needs to realize using integrated circuit, and there are circuit structure complexity, anti-interferences
The defects of difference and use cost are very high.
Summary of the invention
The technical problem to be solved in the present invention: providing a kind of device for realizing artificial antenna revolving speed and implementation method, with solution
The certainly airborne radar signal simulator artificial antenna revolving speed of the prior art, existing circuit structure is complicated, and anti-interference is poor and makes
With the technical problems such as at high cost.
Technical solution of the present invention:
A kind of device for realizing artificial antenna revolving speed, it includes antenna, and radar source output terminal and numerical control microwave switch input
End connection, numerical control microwave switch output end are connect with electrically controlled attenuator input terminal；Clock vibration output end and FPGA control circuit refer to
Clock end connection, output end is connect FPGA control circuit with the control terminal of numerical control microwave switch all the way, and FPGA control circuit is another
The connection of the input terminal of road output end and digital analog converter, the output end of digital analog converter and the control terminal of electrically controlled attenuator connect,
Electrically controlled attenuator output end is connect with aerial signal input terminal.
The antenna is conical antenna.
The control method of the device of the realization artificial antenna revolving speed, it includes:
Step 1 is stepping rotary antenna by 1rad, and record antenna turns to performance number when each angle；
Performance number is converted to the corresponding power attenuation amount of each angle, and power attenuation amount and electricity is adjusted and decayed by step 2
The voltage value of device is corresponding；
It is step 3, the voltage value of electrically controlled attenuator is corresponding with the control code of digital analog converter, the control of digital analog converter
Code data processed are stored in FPGA control circuit；
Step 4, Zhong Zhenwei FPGA control circuit provide system clock, as timing base, according to the day that need to be simulated
Line velocity of rotation is sequentially output the control code for being stored in digital analog converter in FPGA within the time corresponding with revolving speed, adjusts electricity
The attenuation of controlled attenuator realizes the function of artificial antenna revolving speed.
Beneficial effects of the present invention:
Input signal of the present invention using the output signal of FPGA as digital analog converter, passes through the output of digital analog converter
The advantages that signal adjusts the output of electrically controlled attenuator, has structure simple, and accuracy is high, strong antijamming capability；
Circuit structure of the present invention is simple, exports analog voltage using digital analog converter to control electrically controlled attenuator, output letter
Number performance number, output accuracy is higher, and the accuracy for improving artificial antenna revolving speed is high；
The present invention is bestirred oneself using clock for the system clock of FPGA control circuit, and the processing capacity of FPGA is stronger, can respond
The revolving speed of different artificial antennas, is with a wide range of applications.
The present invention solves the airborne radar signal simulator artificial antenna revolving speed of the prior art, and existing circuit structure is multiple
It is miscellaneous, the technical problems such as anti-interference difference and use cost height.
Detailed description of the invention:
Fig. 1 is structural principle block diagram of the invention.
Specific embodiment
A kind of device for realizing artificial antenna revolving speed, it includes antenna, and radar source output terminal and numerical control microwave switch input
End connection, numerical control microwave switch output end are connect with electrically controlled attenuator input terminal；Clock vibration output end and FPGA control circuit refer to
Clock end connection, output end is connect FPGA control circuit with the control terminal of numerical control microwave switch all the way, and FPGA control circuit is another
The connection of the input terminal of road output end and digital analog converter, the output end of digital analog converter and the control terminal of electrically controlled attenuator connect,
Electrically controlled attenuator output end is connect with aerial signal input terminal.Pair of different angle when electrically controlled attenuator is rotated according to artificial antenna
It answers performance number to realize to control attenuated output signal, is thus connected to antenna and obtains the final output signal of artificial antenna revolving speed.
The radar source can be replaced with other signals source.
The numerical control microwave switch receives the control instruction from FPGA, has the advantages that reaction speed is fast, can be quick
Shutdown output signal be used for the high-power value of simulated implementation decaying.
The electrically controlled attenuator carries out control decaying using voltage value, have the advantages that it is with high accuracy, can with artificial antenna turn
The precision of speed is high.
The antenna uses conical antenna, can also be replaced with other antennas.
The control method of the device of the realization artificial antenna revolving speed, it includes:
Step 1 presses 1rad(antenna rotational angle unit) it is stepping rotary antenna, when record antenna turns to each angle
Performance number；
Performance number is converted to the corresponding power attenuation amount of each angle, and power attenuation amount and electricity is adjusted and decayed by step 2
The voltage value of device is corresponding；
It is step 3, the voltage value of electrically controlled attenuator is corresponding with the control code of digital analog converter, the control of digital analog converter
Code data processed are stored in FPGA control circuit；
Step 4, Zhong Zhenwei FPGA control circuit provide system clock, as timing base, according to the day that need to be simulated
Line velocity of rotation is sequentially output the control code for being stored in digital analog converter in FPGA within the time corresponding with revolving speed, adjusts electricity
The attenuation of controlled attenuator realizes the function of artificial antenna revolving speed.
Claims (2)
1. a kind of control method for the device for realizing artificial antenna revolving speed, it includes antenna, radar source output terminal and numerical control microwave
Switch input terminal connection, numerical control microwave switch output end are connect with electrically controlled attenuator input terminal；Clock vibration output end and FPGA are controlled
The connection of circuit reference clock end, output end is connect FPGA control circuit with the control terminal of numerical control microwave switch all the way, FPGA control
The connection of the input terminal of circuit another output end and digital analog converter, the control of the output end and electrically controlled attenuator of digital analog converter
End connection, electrically controlled attenuator output end are connect with aerial signal input terminal；The control method includes:
Step 1 is stepping rotary antenna by 1rad, and record antenna turns to performance number when each angle；
Performance number is converted to the corresponding power attenuation amount of each angle by step 2, and by power attenuation amount and electrically controlled attenuator
Voltage value is corresponding；
It is step 3, the voltage value of electrically controlled attenuator is corresponding with the control code of digital analog converter, the control code of digital analog converter
Data are stored in FPGA control circuit；
Step 4, Zhong Zhenwei FPGA control circuit provide system clock, as timing base, are turned according to the antenna that need to be simulated
Dynamic speed is sequentially output the control code for being stored in digital analog converter in FPGA within the time corresponding with revolving speed, adjusts electricity and adjusts and declines
Subtract the attenuation of device, that is, realizes the function of artificial antenna revolving speed.
2. a kind of control method of device for realizing artificial antenna revolving speed according to claim 1, it is characterised in that: described
Antenna is conical antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610307045.2A CN105974379B (en) | 2016-05-11 | 2016-05-11 | A kind of device that realizing artificial antenna revolving speed and implementation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610307045.2A CN105974379B (en) | 2016-05-11 | 2016-05-11 | A kind of device that realizing artificial antenna revolving speed and implementation method |
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| Publication Number | Publication Date |
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| CN105974379A CN105974379A (en) | 2016-09-28 |
| CN105974379B true CN105974379B (en) | 2019-02-15 |
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| CN108051800B (en) * | 2017-12-13 | 2022-01-28 | 贵州航天计量测试技术研究所 | Indoor noise source positioning method based on spherical near-field acoustic holographic reconstruction reactive sound intensity |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204068940U (en) * | 2014-08-23 | 2014-12-31 | 成都四威航空电源有限公司 | Based on the high-power transmitter of linearizer |
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| JPS62118274A (en) * | 1985-11-18 | 1987-05-29 | Nippon Kokan Kk <Nkk> | Variable speed antenna radar for marine vessel |
| CN102495565B (en) * | 2011-11-25 | 2013-08-14 | 中国电子科技集团公司第三十八研究所 | Phased array radar antenna beam control device |
| CN103259089A (en) * | 2013-04-22 | 2013-08-21 | 南京中网卫星通信股份有限公司 | Control method and control device of X-waveband weather radar antenna |
| CN104659498B (en) * | 2015-03-05 | 2017-10-31 | 北京航空航天大学 | A kind of active Polarimetric Calibration device of rotatable double antenna and its Polarimetric Calibration method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204068940U (en) * | 2014-08-23 | 2014-12-31 | 成都四威航空电源有限公司 | Based on the high-power transmitter of linearizer |
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