数据采集与处理2024，Vol.39Issue(5)：1114-1125,12.DOI:10.16337/j.1004-9037.2024.05.005
基于两步单源点筛选的改进退化解混和估计算法
Improved Degenerate Unmixing Estimation Technique Algorithm Based on Two-Step Single-Source Point Screening
摘要
Abstract
The degenerate unmixing estimation technique(DUET)algorithm is a typical underdetermined blind source separation algorithm.However,as a binary time-frequency mask-based method,DUET erroneously results in some interference signals retention.This paper proposes an improved DUET algorithm based on two-step single-source point screening.The cosine angle algorithm is used for the first-step single-source point screening,and then a similarity calculation method is employed for the second-step single-source point screening.After obtaining more accurate target and interference signals through two-step single-source point screening,the filter designed to cancel the interference signals replaces the binary time-frequency mask of DUET,achieving interference signal suppression and target signal extraction.Simulation results show that the proposed method has good performance in both positive definite and underdetermined blind source separation.关键词
盲源分离/退化解混和估计算法/单源点筛选/抵消核/语音信号Key words
blind source separation/degenerate unmixing estimation technique(DUET)algorithm/single-source point screening/cancellation kernel/speech signal分类
信息技术与安全科学引用本文复制引用
吴礼福,马思佳,孙康..基于两步单源点筛选的改进退化解混和估计算法[J].数据采集与处理,2024,39(5):1114-1125,12.基金项目
国家自然科学基金(12074192). （12074192）
