Anti-RF interference method for high frequency radar

A radio frequency interference and radar technology, which is applied in the field of array channel correction for high-frequency radar, can solve the problems of complex system, loss and distortion of useful signals, and inapplicability to small-diameter wide-beam radar, etc. The effect of the convenient processing method
CN1804655AInactive Publication Date: 2006-07-19WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
WUHAN UNIV
Publication Date
2006-07-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a high frequency radar anti-radio frequency interference method, which detects the interference signal on the radar collected far distance element accumulating Doppler spectrum by the setting signal-to-noise ratio gate and adopts different scan frequency impulse phase modulating modes to reduce the bad effect of the detecting result by the radio frequency interference distribution received by the high frequency radar.
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Description

technical field

[0001] The invention relates to a method for correcting an array channel of a high-frequency radar by using a phase-modulated ionospheric echo signal of a frequency signal. Background technique

[0002] Because of its unique over-the-horizon and all-weather detection capabilities, high-frequency (3-30MHz) radar has been widely studied and successfully applied to the measurement of ocean surface dynamic parameters, and can detect moving targets such as ships, aircraft and missiles in real time. The radio frequency interference generated by dense short-wave communication and radio stations in the high-frequency band will seriously affect the detection performance of the radar, which is a major problem in the operation of high-frequency radar. In the existing high-frequency radar anti-jamming methods, the commonly used adaptive beamforming anti-jamming method relies on a large phased antenna array, the system is relatively complex, and it is not suitable for sma...

Claims

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