北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2009, Vol. 32 ›› Issue (1): 122-125.doi: 10.13190/jbupt.200901.122.sunyj

• 研究报告 • 上一篇    下一篇

无平方根运算的正交分解非线性窄带干扰抑制

孙永军;田斌;易克初   

  1. 西安电子科技大学 综合业务网国家重点实验
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-01-28 发布日期:2009-01-28
  • 通讯作者: 孙永军

Nonlinear Narrowband Interference Suppression Based on QR Decomposition without Root Computation

SUN Yong-jun; Bin Tian ;YI Ke-chu<SPAN lang=EN-US style=   

  • Received:1900-01-01 Revised:1900-01-01 Online:2009-01-28 Published:2009-01-28
  • Contact: SUN Yong-jun

摘要:

为了提高对不同窄带干扰的抑制效果,提出一种利用Givens旋转的正交分解的自适应非线性干扰抑制算法.传统Givens旋转算法涉及到平方根运算,要消耗较多硬件资源或需要多次循环来实现,为此,提出一种无平方根与除法运算的Givens旋转算法,并结合信号输入矩阵的特殊结构,给出一种低复杂度的干扰抑制算法,将窄带干扰建模为自回归过程以及数字窄带信号。

关键词: 窄带干扰, 非线性预测, 矩阵分解

Abstract:

In order to improve the performance of antijamming for various interferences, an adaptive nonlinear algorithm using Givens rotation orthogonal decomposition is developed. The traditional Givens rotation algorithm involves root computation that needs more hardware resources, a Givens rotation algorithm without root and division computation is presented. And ,combined with special structure of input signal matrix, a interference suppression algorithm with low computation is proposed. The narrowband interferences are modeled as AR process and digital signal.

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