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一种自适应跳频中的干扰检测算法

消耗积分:5 | 格式:rar | 大小:246 | 2009-05-26

刘满贵

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为提高跳频通信系统的可靠性和稳定性，根据线性数字调制信号的特点，对信号进行非线性变换，应用变换后信号的功率谱密度中所包含的信号特征信息，提出了一种适合于自适应跳频的干扰检测算法。该算法基于贝叶斯决策理论，属于盲信干(信噪)比检测。仿真结果表明，该算法满足跳频通信系统的要求。To improve the reliability and stability of FH communications, nonlinear transforms are used according to the properties of linear modulated digital signals. Based on the information included in the PSD of the transformed signals, an algorithm for detecting interferences applied to adaptive FH is proposed. The algorithm is based on Bayesian decision-making, which belongs to blind detection of signal-to-interference ratio (SIR) and signal-to-noise ratio (SNR). The simulation results show that the algorithm meets the requirements of FH communication systems.
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