A Novel Method for Parameter Estimation Based on Wide-Band Ambiguity Function in Bistatic MIMO Radar System in Impulsive Noise Environment

LI Li; QIU Tian-shuang

doi:10.3969/j.issn.0372-2112.2016.12.005

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A Novel Method for Parameter Estimation Based on Wide-Band Ambiguity Function in Bistatic MIMO Radar System in Impulsive Noise Environment

更新时间：2025-07-16

- A Novel Method for Parameter Estimation Based on Wide-Band Ambiguity Function in Bistatic MIMO Radar System in Impulsive Noise Environment
- Acta Electronica Sinica Vol. 44, Issue 12, Pages: 2842-2848(2016)
- 作者机构：
  
  1. 大连大学信息工程学院,辽宁,大连,116622
  2. 大连理工大学电子信息与电气工程学部,辽宁,大连,116024
  3. 大连大学信息工程学院,辽宁,大连,116622
  4. 大连理工大学电子信息与电气工程学部,辽宁,大连,116024
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61401055, No.61139001, No.61172108, No.61261046)
- DOI：10.3969/j.issn.0372-2112.2016.12.005
  CLC： TN911.7
- Published Online：25 December 2016，
  
  Published：2016
- 稿件说明：
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LI Li, QIU Tian-shuang. A Novel Method for Parameter Estimation Based on Wide-Band Ambiguity Function in Bistatic MIMO Radar System in Impulsive Noise Environment[J]. Acta Electronica Sinica, 2016, 44(12): 2842-2848.
DOI：

LI Li, QIU Tian-shuang. A Novel Method for Parameter Estimation Based on Wide-Band Ambiguity Function in Bistatic MIMO Radar System in Impulsive Noise Environment[J]. Acta Electronica Sinica, 2016, 44(12): 2842-2848. DOI： 10.3969/j.issn.0372-2112.2016.12.005.

摘要

以Alpha稳定分布作为噪声模型，研究了脉冲噪声环境下宽带双基地MIMO雷达系统中参数估计问题.针对在脉冲噪声环境中，基于传统的信号模型和算法效果显著退化的问题，本文提出了基于分数低阶统计量的宽带模糊函数算法.首先根据分数低阶宽带模糊函数的峰值点实现对多普勒频率尺度因子和时延的联合估计.接下来基于分数低阶宽带模糊函数构造两个子阵.通过采用改进的MUSIC算法和ESPRIT算法实现了收发角的联合估计.仿真实验表明本文算法具有很好的性能.

Abstract

This paper takes the Alpha stable distribution as the noise model and studies the problem of bistatic multiple-input multiple-output (MIMO) radar system in the impulsive noise environment.Since the conventional algorithms degenerate severely in the impulsive noise environment

this paper proposes a novel method of wide-band ambiguity function based on the fractional lower-order statistics (FLOS-WBAF).Firstly

Doppler stretch and time delay are jointly estimated by peak searching the FLOS-WBAF.Secondly

two sub-array models are constructed based on the FLWBAF.Furthermore

two modified algorithms are proposed for the estimation of DODs and DOAs

including the fractional lower-order wide-band ambiguity function based on MUSIC algorithm (FLWBAF-MUSIC) and the fractional lower-order wide-band ambiguity function based on ESPRIT algorithm (FLWBAF-ESPRIT).Simulation results are presented to verify the effectiveness of the proposed method.

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