版权所有：内蒙古大学图书馆 技术提供：维普资讯• 智图
内蒙古自治区呼和浩特市赛罕区大学西街235号 邮编: 010021
Rejection of Direct Blast Interference Based on Signal Phase-Matching Array Processing
Rejection of Direct Blast Interference Based on Signal Phase-Matching Array Processing作者机构：the Department of Ship Engineering Dalian University of Technology Key Laboratory for Underwater Test and Control Technology Key Laboratory for Underwater Test & Control Technology
出 版 物：《Journal of Electronic Science and Technology》 (电子科技学刊（英文版）)
年 卷 期：2013年第11卷第1期
页 面：106-109页
学科分类：11[军事学] 0810[工学-信息与通信工程] 1105[军事学-军队指挥学] 08[工学] 081002[工学-信号与信息处理] 110503[军事学-军事通信学]
主 题：Bistatic acoustic testing direct blast interference rejection signal phase matching processing.
摘 要：In bistaic acoustic testing, there will be strong direct blast interference. An algorithm based on signal phase-matching array processing that rejects direct blast interference in bistatic acoustic testing has been studied, through which the object scattering signal is accurately extracted. Characteristics of bistatic acoustic testing and signal phase matching processing principle are fully integrated in this algorithm. Firstly, the direct blast interference is calculated from the receiving signal based on three subarrays signal phase matching processing. Secondly, the direct blast is rejected by subtraction from the receiving signal. In this way the limitations of the high signal to noise ratio that signal phase matching processing required for direct calculating the object scattering signal can be avoided. Simulation and sea trial results show that, when the ratio of signal to interference is greater than -20 dB, this algorithm of direct blast interference rejection based phase matching signal processing can accurately extract the object scattering signal.
