Self-adaption anti-interference detection threshold determination method for MSK spread spectrum receiver

A detection threshold and adaptive technology, applied in electrical components, transmission systems, etc., can solve problems such as poor adaptability, and achieve the effect of meeting system requirements and achieving accurate adaptive anti-jamming detection thresholds

Inactive Publication Date: 2018-02-13
BEIJING INST OF REMOTE SENSING EQUIP
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Problems solved by technology

[0003] The purpose of the present invention is to provide a MSK spread spectrum receiver adaptive anti-interference detection threshold determination method to solve the problem of poor adaptability of the traditional anti-interference detection threshold determination method

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  • Self-adaption anti-interference detection threshold determination method for MSK spread spectrum receiver
  • Self-adaption anti-interference detection threshold determination method for MSK spread spectrum receiver
  • Self-adaption anti-interference detection threshold determination method for MSK spread spectrum receiver

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Embodiment Construction

[0020] A MSK spread spectrum receiver adaptive anti-jamming detection threshold determination method, its specific steps are:

[0021] The first step is to build an adaptive anti-jamming detection threshold determination system

[0022] The adaptive anti-interference detection threshold determination system includes: A / D data cache module, window processing module, time-frequency conversion module, amplitude spectral line mean value determination module and detection threshold determination module; the function of the A / D data cache module To: perform buffer processing on the A / D acquisition data of the spread spectrum signal; the function of the windowing processing module is: perform windowing processing on the buffered data; the function of the time-frequency transformation module is: perform time-frequency processing on the data after windowing processing Transformation; the function of the detection threshold determination module is to determine the adaptive anti-jamming ...

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Abstract

The invention discloses a self-adaption anti-interference detection threshold determination method for an MSK spread spectrum receiver. The method is realized through adoption of an A/D data caching module, a windowing module, a time frequency conversion module, an amplitude spectrum line mean value determination module and a detection threshold determination module. The A/D data caching module isused for caching A/D collection data of spread spectrum signals. The windowing module is used for windowing the cached data. The time frequency conversion module is used for carrying out time frequency conversion on the windowed data. The detection threshold determination module is used for determining a self-adaption anti-interference detection threshold. According to the method, the problem that a traditional anti-interference detection threshold determination method is relatively low in adaptability is solved.

Description

technical field [0001] The invention relates to a method for determining an anti-interference detection threshold, in particular to a method for determining an adaptive anti-interference detection threshold for an MSK spread spectrum receiver. Background technique [0002] The MSK spread spectrum receiver needs to despread the received spread spectrum signal to restore the original information. When the power of the narrowband interference signal is much greater than the power of the spread spectrum signal, only rely on the processing gain of the spread spectrum system to suppress the narrowband Interference is difficult to achieve good performance, so it is necessary to use anti-jamming methods to suppress narrow-band interference, and the determination of the anti-jamming detection threshold directly affects the anti-jamming capability of the spread spectrum receiver. The traditional determination method of anti-interference detection threshold adopts the method of fixed s...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/71
CPCH04B1/7102
Inventor 段云鹏
Owner BEIJING INST OF REMOTE SENSING EQUIP
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