基于四阶累积量对角切片的短波自适应通信信号检测

短波自适应通信信号的检测是现代电子战信号处理的一个重要研究课题,本文提出了基于四阶累积量对角切片的短波自适应通信信号检测方法.文章推导了有限长度信号四阶累积量对角切片的分段估计方法,分析了其渐进性能,分析表明该估计方法降低了估计方差;论文介绍了信号检测原理,借助于计算机仿真研究了高斯白噪声和色噪声及不同信噪比下不同检测方法的性能.仿真对比结果验证了该方法的有效性.

HF Adaptive Radio Communication Signal Detection Based on Fourth-Order Cumulants Diagonal Slice

HF(high frequency) adaptive radio communication signal(HF-ARCS) detection is an important research problem in the domain of electronic warfare.A new method based on fourth-order cumulants diagonal slice for the detection of HF-ARCS is presented.The subsection-based estimation method for the fourth-order cumulants diagonal slice of real data is proposed and its asymptotic characteristic is analyzed as well.The asymptotic analysis shows that the estimation method reduces estimation mean square error.The detection principle is introduced and the capability of different detection methods in Gaussian distributed white or colored noise under different signal noise ratio is investigated with the help of computer simulation.The comparing simulation results demonstrate the effectiveness of the new method.