一种在脉冲噪声环境下的最大相关熵目标直接定位算法

doi:10.12305/j.issn.1001-506X.2023.09.01

摘要/Abstract

摘要：

无源定位技术在水面舰艇定位、海域监测、地面非法入侵等领域都具有重要应用价值。为了解决在不一致的脉冲噪声环境下的定位问题, 本文使用α-稳定分布对脉冲噪声建模。在此基础上, 应用最大相关熵准则, 提出了最大相关熵目标直接定位算法。仿真结果表明, 该算法在强脉冲噪声环境下具有较好的定位精度, 并且算法核长参数的选取不依赖于脉冲噪声的先验信息; 在脉冲噪声不一致条件下, 所提算法仍然能够实现对目标的精确定位。

关键词: 目标直接定位, 脉冲噪声, 最大复相关熵, 噪声不一致

Abstract:

Passive localization technique has important application value in many fields such as naval ships position, marine monitoring and ground illegal invasion. We consider the passive localization problem in non-uniform impulsive noise environment. The impulsive noise is modeled with the α-stable distribution. We develop a direct position determination algorithm based on the maximum complex correntropy criterion. Simulation results demonstrate superior localization performance of the proposed algorithm in strong impulsive noise environment. Prior knowledge of the impulsive noise at each receiver is irrelevant to the selection of kernel parameter of the algorithm. Moreover, the perferable localization performance of the proposed algorithm is validated experimentally under the condition of nonuniform impulsive noise.

Key words: direct position determination (DPD), impulsive noise, maximum complex correntropy (MCC), non-uniform noise

中图分类号:

TN911.7

毛毅, 段永胜, 黄中瑞, 张峻宁. 一种在脉冲噪声环境下的最大相关熵目标直接定位算法[J]. 系统工程与电子技术, 2023, 45(9): 2651-2658.

Yi MAO, Yongsheng DUAN, Zhongrui HUANG, Junning ZHANG. Direct position determination algorithm based on maximum complex correntropy target in impulsive noise environment[J]. Systems Engineering and Electronics, 2023, 45(9): 2651-2658.

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