PRECISE RADAR TARGET RANGING ESTIMATION BASED ON SLIP MATCHING OF ENVELOPES
作者单位：School of Electronic Science and Engineering National University of Defense Technology
会议名称：《国防光电子论坛第二届新型探测技术及其应用研讨会》
会议日期：2015年
学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 081105[工学-导航、制导与控制] 081001[工学-通信与信息系统] 081002[工学-信号与信息处理] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程]
关 键 词：micro-motion phase derived range slip matching of envelopes ambiguity resolution
摘 要：A novel precise radar target ranging method based on echo phases and slip matching of envelopes is presented in this paper. The method provides a high precision with rootmean-square error at sub-wavelength level, and it only requires envelopes of the echo pulses. The difficulty is matching procedure of envelopes. According to the principle of resolving ambiguous phases based on slip matching of envelopes, some restraint conditions for ambiguity resolution are proposed, and the theory of extracting ambiguous Doppler phases from wideband radar echoes is provided. The method provides a more convenient and precise way to resolve ambiguous phases, and the experiments have validated the performance of ranging capability.