Performance Analysis of ML DOA Estimate with Incorrect Signal Number

Yu Hongyi; Bao Zheng

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Performance Analysis of ML DOA Estimate with Incorrect Signal Number

更新时间：2025-12-08

- Performance Analysis of ML DOA Estimate with Incorrect Signal Number
- Acta Electronica Sinica Issue 8, (1999)
- 作者机构：
  
  西安电子科技大学雷达信号处理重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.23
- Published：1999
- 稿件说明：
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[1]于宏毅,保铮.信号数目估计错误的最大似然波达方向估计的性能分析[J].电子学报,1999(08):118-120.

Yu Hongyi, Bao Zheng. Performance Analysis of ML DOA Estimate with Incorrect Signal Number[J]. Acta Electronica Sinica, 1999, (8).
[1]于宏毅,保铮.信号数目估计错误的最大似然波达方向估计的性能分析[J].电子学报,1999(08):118-120. DOI：

Yu Hongyi, Bao Zheng. Performance Analysis of ML DOA Estimate with Incorrect Signal Number[J]. Acta Electronica Sinica, 1999, (8). DOI：

摘要

本文分析了当信号数目估计与真正的信号数目有出入时的波达方向（ＤＯＡ）最大似然（ＭＬ）估计的性能．文中给出此时角度估计的渐近分布，也就给出了这一估计的渐近方差的解析表达式，计算机模拟试验表明，理论预计结果是相当准确的．

Abstract

In this paper

an analysis of the performance of the ML method of directions of arrival estimation is carried out

in the case where estimated number of signals is different from the real signal number.An asymptotic distribution of the estimation is derived

from which the analytic expressions of asymptotic estimation variance are given.The results expected by the theory are in satisfactory agreement with the computer simulation.

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