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在无线通信系统中存在各式各样的干扰,尤其在军事通信中。不同类型干扰信号在时/频域具有不同的信号特征。现有的干扰抑制算法都是在特定域上进行干扰抑制。研究了一种基于变换域选择的干扰抑制算法,并提出了一种改进的度量选择算法,该算法可以有效地选择最佳变换域去抑制干扰。这种算法简单、且容易实现,复杂度也比较低。仿真结果表明这种算法对于抑制不同的干扰有较好的性能。
There is a wide variety of interference in wireless communication systems, especially in military communications. Different types of interference signals have different signal characteristics in the time / frequency domain. Existing interference suppression algorithms all perform interference suppression on specific domains. An interference suppression algorithm based on transform domain selection is studied. An improved metric selection algorithm is proposed, which can effectively select the best transform domain to suppress interference. This algorithm is simple, easy to implement, and less complex. Simulation results show that this algorithm has better performance in suppressing different interferences.