RFI excision using a higher order statistics analysis of the power spectrum

被引：21

作者：

Fridman, PA ^{[1
]}

机构：

[1] ASTRON, NL-7990 AA Dwingeloo, Netherlands

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 368卷 / 01期

关键词：

power spectrum; probability distribution; RFI excision;

D O I：

10.1051/0004-6361:20000552

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A method of radio frequency interference (RFI) suppression in radio astronomy spectral observations based on the analysis of the probability distribution of an instantaneous spectrum is described. This method allows the separation of the Gaussian component due to the natural radio source and the non-Gaussian RFI signal. Examples are presented in the form of computer simulations of this method of RFI suppression and of WSRT observations with this method applied. The application of real time digital signal processing for RFI suppression is found to be effective for radio astronomy telescopes operating in a worsening spectral environment.

引用

页码：369 / 376

页数：8

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