Space-frequency adaptive processing (SFAP) for radio frequency interference mitigation in spread-spectrum receivers

被引：27

作者：

Gupta, IJ ^{[1
]}

Moore, TD ^{[1
]}

机构：

[1] Ohio State Univ, Dept Elect & Comp Engn, Electrosci Lab, Columbus, OH 43212 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2004年 / 52卷 / 06期

关键词：

adaptive processing (AP); radio frequency interference (RFI); space-frequency adaptive processing (SFAP); windowing;

D O I：

10.1109/TAP.2004.829850

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The performance of narrow-band SFAP is studied when the time domain samples are multiplied by a window function. It is shown that when the interference scenario consists of narrow-band as well as wide-band sources, windowing the time domain samples leads to improved performance. In the. case, of digital receivers processing spread-spectrum signals, one may be able to acquire and track the desired signal(s) in severe interference scenarios leading to more robust performance. It is also demonstrated that one needs to carry out some sample overlapping in SFAP to achieve the optimum performance. However, 20% to 25% sample overlapping is sufficient. This is a lot less than the present practice.

引用

页码：1611 / 1616

页数：6

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