The Optimum Interference Suppression Technique Based on Kalman Filtering for Spread Spectrum Systems

LI Lin; ZHOU Wen-hui; TAN Shu-sen

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The Optimum Interference Suppression Technique Based on Kalman Filtering for Spread Spectrum Systems

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- The Optimum Interference Suppression Technique Based on Kalman Filtering for Spread Spectrum Systems
- Acta Electronica Sinica Vol. 39, Issue 10, Pages: 2444-2448(2011)
- 作者机构：
  
  1. 北京环球信息应用开发中心,北京,100094
  2. 北京系统工程研究所,北京,100101
  3. 北京环球信息应用开发中心北京,100094
  4. 北京系统工程研究所北京,100101
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911
- Published：2011
- 稿件说明：
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LI Lin, ZHOU Wen-hui, TAN Shu-sen. The Optimum Interference Suppression Technique Based on Kalman Filtering for Spread Spectrum Systems[J]. Acta Electronica Sinica, 2011, 39(10): 2444-2448.
DOI：

LI Lin, ZHOU Wen-hui, TAN Shu-sen. The Optimum Interference Suppression Technique Based on Kalman Filtering for Spread Spectrum Systems[J]. Acta Electronica Sinica, 2011, 39(10): 2444-2448. DOI：

摘要

针对扩频系统中的干扰抑制问题

本文首先将其建模为附加约束的最小化均值输出能量(MMOE)问题

然后借助正交分解将约束MMOE转化为无约束最小均方误差(MMSE)

接着通过选择合适的状态变量、建立合适的状态方程和观测方程得到盲Kalman滤波(BKF)算法

最后分析了BKF算法性能.研究表明:BKF的收敛性能与输入相关矩阵几乎无关

能快速跟踪环境变化

稳态干扰抑制性能逼近最优性能;明显优于盲最小均方(BLMS)和盲递推最小二乘(BRLS)算法.

Abstract

In this paper

the interference suppression of spread spectrum systems is treated as constrained minimum mean output energy (MMOE).After an orthogonal decompose procedure for transforming the MMOE problem to unconstrained minimum mean square error (MMSE) one and a construction for state equation and observation equation

and then the blind Kalman filtering (BKF)

i.e.

absence of a desire signal

is developed and analyzed.The research results indicate that the BKF algorithm is insensitive to variations in the correlation matrix

fast response to the changing environment

and close to level of optimization with iterative operation.Hence

it is superior to the blind least mean square (BLMS) and blind recursive least squares (BRLS) algorithms.

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LI Lin

ZHOU Wen-hui

WANG Bo

CHEN Ming

LIANG Guang-ming

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ZHOU Yue-ying

Related Institution

Nanjing Research Institute of Electronics Technology

Beijing Application and Development Center of Round-the-World Information

Beijing Application and Development Center of Round-the-World InformationBeijing 100094China

Nanjing Research Institute of Electronics TechnologyNanjingJiangsu 210013China

Institute of Telemetering Technology Beijing China

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