稳定干扰下局部次优和局部次优秩检测的评分函数

信号处理 Pub Date : 2001-08-06 DOI:10.1109/SSP.2001.955221

C.L. Brown

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引用次数: 9

摘要

在加性对称/spl α /稳定干扰中检测已知信号的局部最优和局部最优秩分数函数的近似只会带来轻微的性能损失。在这里，非线性顶点的位置与干涉的特征指数/spl α /呈近似线性关系。相应的检验统计量的分布也近似为高斯分布。这些发现使探测器的实现更加可行，并消除了一些昂贵的计算负担。

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Score functions for locally subptimum and locally suboptimum rank detection in alpha-stable interference

Approximations to the locally optimum and locally optimum rank score functions for the detection of a known signal in additive symmetric /spl alpha/ stable interference have been shown to introduce only slight performance loss. Here, the location of the apices of the nonlinearities is shown to follow an approximate linear relationship with the characteristic exponent, /spl alpha/, of the interference. The distribution of the corresponding test statistics is also found to be approximately Gaussian. These findings make implementation of the detectors more feasible and remove some expensive computational burden.

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来源期刊

信号处理

自引率

0.00%

发文量

5812

期刊介绍： Journal of Signal Processing is an academic journal supervised by China Association for Science and Technology and sponsored by China Institute of Electronics. The journal is an academic journal that reflects the latest research results and technological progress in the field of signal processing and related disciplines. It covers academic papers and review articles on new theories, new ideas, and new technologies in the field of signal processing. The journal aims to provide a platform for academic exchanges for scientific researchers and engineering and technical personnel engaged in basic research and applied research in signal processing, thereby promoting the development of information science and technology. At present, the journal has been included in the three major domestic core journal databases "China Science Citation Database (CSCD), China Science and Technology Core Journals (CSTPCD), Chinese Core Journals Overview" and Coaj. It is also included in many foreign databases such as Scopus, CSA, EBSCO host, INSPEC, JST, etc.