哈尔滨工程大学学报Issue(10)：1224-1230,7.DOI:10.3969/j.issn.1006-7043.201305038
基于相位校正的零点约束直达波抑制方法
Direct path interference suppression based on zero constraint condition with phase correction
摘要
Abstract
Direct path interference suppression, as a kind of classic strong coherent interference, is one of the key technologies in the bistatic system. According to the research on the direct path interference suppression in the bi⁃static and multistatic sonars, a method based on zero constraint conditions of beamforming was proposed. The zero constraint was set around the direction of the direct path interference to estimate the direction of the target echo. Be⁃cause the algorithm must be based on precise phase information on the direct path wave, the improved algorithm based on the phase correction of the direct path interference was raised to improve the tolerance in the practical ap⁃plication. The computer simulation and tank experiment are completed to prove the effectiveness of the algorithm.关键词
双基地声呐/零点约束/直达波抑制/强直达波干扰/相位校正/波束形成Key words
bistatic sonar/zero constraint condition/direct path interference suppression/strong coherent interfer-ence/phase correction/beamforming分类
信息技术与安全科学引用本文复制引用
黄聪,张殿伦,孙大军,兰华林..基于相位校正的零点约束直达波抑制方法[J].哈尔滨工程大学学报,2014,(10):1224-1230,7.基金项目
国防科技重点实验室基金资助项目（9140C200406110C20）；国防科学技术委员会基础研究科研计划资助项目（ B2420132004）． （）
