CN203930045U - A kind of antenna pattern measurement device based on Full digital high-frequency radar - Google Patents
A kind of antenna pattern measurement device based on Full digital high-frequency radar Download PDFInfo
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- CN203930045U CN203930045U CN201420190225.3U CN201420190225U CN203930045U CN 203930045 U CN203930045 U CN 203930045U CN 201420190225 U CN201420190225 U CN 201420190225U CN 203930045 U CN203930045 U CN 203930045U
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Abstract
The utility model provides a kind of antenna pattern measurement device based on Full digital high-frequency radar, comprises radiating circuit, receiving circuit, fpga chip, USB controller, main frame; Radiating circuit comprises emitting antenna, transmitter, DDS chip, phase-locked loop clock compositor, the crystal oscillating circuit connecting successively; Receiving circuit comprises receiving antenna, AFE (analog front end), the A/D change-over circuit connecting successively; Fpga chip is connected with phase-locked loop clock compositor, DDS chip, transmitter, AFE (analog front end), A/D change-over circuit, USB controller respectively; USB controller is connected with main frame; Phase-locked loop clock compositor is connected with A/D change-over circuit.The utlity model has the advantage that circuit is simple, volume is little, cost is low, stability is high, be specially adapted to ocean surface kinetic parameter and survey.
Description
Technical field
The utility model relates to a kind of antenna pattern measurement device based on Full digital high-frequency radar.
Background technology
The key of radar target acquisition is by Array Signal Processing, the position angle of target to be estimated accurately, the precision that orientation is estimated depends on the accuracy of aerial array actual direction figure to a great extent, so Measurement accuracy antenna radiation pattern is of great significance for radar target acquisition tool.Common array format is mainly to judge arrival bearing by the phase differential between more adjacent array element, and than phase, the pattern measurement of this antenna array need to use phase information, in practical application, by transponder, realizes.That in Wuhan University, applies for is by name: high-frequency ground wave radar transponder, the patent No. are: in 03235739.7 patent, introduced the design of transponder, it can realize following functions by producing one with the completely relevant time delayed signal of radar emission signal: the one, for the amplitude and phase correction of Multichannel radar receiver provides a reference signal, the 2nd, near field measurement transmitting radar antenna directional diagram provides stable signal source, the 3rd, for the wide velocity of wave radargrammetry echo signal angle of arrival provides calibrating signal, but this circuit is very complicated, and design cost is high.
Utility model content
The purpose of this utility model is just to take into full account above-mentioned application demand, designs that a kind of circuit is more simple, stable performance, cheap, is exclusively used in compact than the device of width antenna pattern measurement.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
An antenna pattern measurement device based on Full digital high-frequency radar, comprises radiating circuit, receiving circuit, fpga chip, USB controller, main frame; Radiating circuit comprises emitting antenna, transmitter, DDS chip, phase-locked loop clock compositor, the crystal oscillating circuit connecting successively; Receiving circuit comprises receiving antenna, AFE (analog front end), the A/D change-over circuit connecting successively; Fpga chip is connected with phase-locked loop clock compositor, DDS chip, transmitter, AFE (analog front end), A/D change-over circuit, USB controller respectively; USB controller is connected with main frame; Phase-locked loop clock compositor is connected with A/D change-over circuit.
Described transmitter comprises emission switch and power amplifier, emitting antenna, emission switch, power amplifier,
DDS chip connects successively; Described AFE (analog front end) comprises receiving key, filtering circuit, amplifying circuit, and receiving antenna, receiving key, filtering circuit, amplifying circuit, A/D change-over circuit connect successively.
Compared with prior art, the utility model does not adopt the signal processing circuits such as demodulation, modulation, time delay, and circuit one-piece construction is very simple, and stable performance and cost are lower.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is emission principle schematic diagram of the present utility model;
Fig. 3 is record principle schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail:
As shown in Figure 1, the utility model comprises radiating circuit, receiving circuit, fpga chip, USB controller, main frame; Radiating circuit comprises emitting antenna, transmitter, DDS chip, phase-locked loop clock compositor, the crystal oscillating circuit connecting successively; Receiving circuit comprises receiving antenna, AFE (analog front end), the A/D change-over circuit connecting successively; Fpga chip is connected with phase-locked loop clock compositor, DDS chip, transmitter, AFE (analog front end), A/D change-over circuit, USB controller respectively; USB controller is connected with main frame; Phase-locked loop clock compositor is connected with A/D change-over circuit; Wherein, fpga chip, DDS chip all adopt existing chip, the XC6SLX150-2FGG676 that fpga chip adopts Xilinx company to produce, the AD9910 that DDS chip adopts ADI company to produce.
Transmitter comprises emission switch and power amplifier, emitting antenna, emission switch, power amplifier, DDS
Chip connects successively; Described AFE (analog front end) comprises receiving key, filtering circuit, amplifying circuit, and receiving antenna, receiving key, filtering circuit, amplifying circuit, A/D change-over circuit connect successively.
Fig. 2 and Fig. 3 are the schematic diagram transmitting and receiving, wherein, AFE (analog front end) in receiver channel corresponding diagram 1 in Fig. 2 (switch, filtering, amplification) and A/D conversion, FPGA transmission control module and USB controller in USB transmission corresponding diagram 1, FFT module and than width all the host side in Fig. 1 realize.
During use, transmitting terminal is positioned on the ship with GPS registering instrument, ship can move around antenna; Receiving end is inputted to a part for radar receiver, be positioned over point of fixity on the bank.
Claims (2)
1. the antenna pattern measurement device based on Full digital high-frequency radar, is characterized in that: comprise radiating circuit, receiving circuit, fpga chip, USB controller, main frame; Radiating circuit comprises emitting antenna, transmitter, DDS chip, phase-locked loop clock compositor, the crystal oscillating circuit connecting successively; Receiving circuit comprises receiving antenna, AFE (analog front end), the A/D change-over circuit connecting successively; Fpga chip is connected with phase-locked loop clock compositor, DDS chip, transmitter, AFE (analog front end), A/D change-over circuit, USB controller respectively; USB controller is connected with main frame; Phase-locked loop clock compositor is connected with A/D change-over circuit.
2. a kind of antenna pattern measurement device based on Full digital high-frequency radar according to claim 1, is characterized in that: described transmitter comprises emission switch and power amplifier, and emitting antenna, emission switch, power amplifier, DDS chip connect successively; Described AFE (analog front end) comprises receiving key, filtering circuit, amplifying circuit, and receiving antenna, receiving key, filtering circuit, amplifying circuit, A/D change-over circuit connect successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190225.3U CN203930045U (en) | 2014-04-18 | 2014-04-18 | A kind of antenna pattern measurement device based on Full digital high-frequency radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190225.3U CN203930045U (en) | 2014-04-18 | 2014-04-18 | A kind of antenna pattern measurement device based on Full digital high-frequency radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203930045U true CN203930045U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420190225.3U Expired - Fee Related CN203930045U (en) | 2014-04-18 | 2014-04-18 | A kind of antenna pattern measurement device based on Full digital high-frequency radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203930045U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659491A (en) * | 2015-02-10 | 2015-05-27 | 武汉大学 | Miniature receiving antenna and azimuth estimation method for HF/VHF radar |
| CN105204011A (en) * | 2015-09-15 | 2015-12-30 | 武汉大学 | Method for forming wave field through high-frequency ground wave radar |
| CN106506018A (en) * | 2016-10-20 | 2017-03-15 | 武汉大学 | A kind of digital AIS receiver systems that is directly sampled based on radio frequency |
-
2014
- 2014-04-18 CN CN201420190225.3U patent/CN203930045U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659491A (en) * | 2015-02-10 | 2015-05-27 | 武汉大学 | Miniature receiving antenna and azimuth estimation method for HF/VHF radar |
| CN105204011A (en) * | 2015-09-15 | 2015-12-30 | 武汉大学 | Method for forming wave field through high-frequency ground wave radar |
| CN105204011B (en) * | 2015-09-15 | 2017-09-22 | 武汉大学 | A kind of method that high-frequency ground wave radar forms unrestrained field |
| CN106506018A (en) * | 2016-10-20 | 2017-03-15 | 武汉大学 | A kind of digital AIS receiver systems that is directly sampled based on radio frequency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150418 |
|
| EXPY | Termination of patent right or utility model |