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文章对短波高速串行信号的相关检测进行分析。首先分析了固定门限判决和自适应门限判决,在此基础上综合二者提出固定门限与自适应门限相结合的混合门限判决方法。经过仿真实验表明,该混合门限算法综合了固定门限与自适应门限的优点,在短波信道下低信噪比时综合性能有较大改善。
The article analyzes the detection of HF high-speed serial signals. Firstly, the fixed threshold decision and the adaptive threshold decision are analyzed. Based on the above analysis, a hybrid threshold decision method combining the fixed threshold with the adaptive threshold is proposed. Simulation results show that the hybrid threshold algorithm combines the advantages of fixed threshold and adaptive threshold, and improves the overall performance at low signal-to-noise ratio in short-wave channel.