Frequency hopping communication anti-interference method based on cognitive radio

A cognitive radio and frequency hopping communication technology, which is applied in wireless communication, electrical components, transmission systems, etc., can solve the problems of frequency hopping communication network capacity improvement, difficulty in orthogonality of frequency hopping pattern sets, and frequency hopping point collisions. Achieve the effect of improving anti-jamming communication ability, reducing bit error rate and increasing capacity

Active Publication Date: 2013-12-11
深圳市研谱科技有限公司
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Problems solved by technology

With the wide application of frequency hopping multiple access and frequency hopping networking in wireless communication, the available frequency resources between different users in the network and between networks in the same frequency band will become increasingly tense, and the orth

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  • Frequency hopping communication anti-interference method based on cognitive radio
  • Frequency hopping communication anti-interference method based on cognitive radio
  • Frequency hopping communication anti-interference method based on cognitive radio

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[0033] Examples:

[0034] Such as figure 1 with figure 2 As shown, an anti-jamming method for frequency hopping communication based on cognitive radio. The anti-jamming method includes three parts: a frequency hopping communication anti-jamming spectrum window detection method, a method for removing interference frequency points to obtain a spectrum window, and hopping under interference conditions Frequency key sharing transmission method.

[0035] The method for detecting the anti-interference spectrum window of frequency hopping communication is specifically:

[0036] a. Divided into several relatively narrow sub-bands according to the entire frequency band used by the system frequency hopping and the bandwidth of each frequency point;

[0037] b. Use the spectrum sensing method of cognitive radio energy detection to perform periodic sensing and detection on all frequency bands supported by the system to obtain the energy characteristics of each frequency band;

[0038] c....

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Abstract

The invention discloses a frequency hopping communication anti-interference method based on cognitive radio. The frequency hopping communication anti-interference method comprises a frequency hopping communication interference spectrum sensing method, a method for obtaining spectrum windows by eliminating interference frequency points and a frequency hopping key sharing and transmitting method under an interference condition. Relevant ideas of the cognitive radio are combined into frequency hopping communication, and a plurality of spectrum windows with low interference temperatures are dynamically selected by sensing a surrounding electromagnetic environment as transmission frequency bands for frequency hopping signals, so that the adaptability of a radio frequency-hopping broadcasting station to the electromagnetic environment can be improved, the utilization rate of spectrum resources is increased, malicious interferences of enemies and self-disturbances between broadcast stations can be further suppressed, the network capacity of a frequency hopping communication network is improved, and the error rate of the whole frequency hopping system is reduced.

Description

technical field [0001] The present invention combines the field of cognitive radio and frequency hopping communication, and specifically relates to a channel capacity used to improve the anti-random interference, burst interference and mixed interference conditions of frequency hopping radio stations, and reduce system communication errors in interference environments rate method. Background technique [0002] Frequency hopping communication has attracted much attention because of its good confidentiality, anti-far and near effect, and anti-interference performance. It is widely used in modern military short-wave, ultra-short wave and data link communication equipment. With the increasingly complex electromagnetic environment, existing frequency hopping communication systems are facing more and more problems and challenges, which gradually affect the performance of frequency hopping anti-jamming communication systems. [0003] Availability (bandwidth, system capacity) and ...

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Application Information

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IPC IPC(8): H04B1/715H04W16/14H04W24/00
Inventor 郭建新邱伟郑万泽狄旻珉戚云军叶向阳郭友波
Owner 深圳市研谱科技有限公司
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