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1. (WO2018196248) DIRECT WAVE SUPPRESSION METHOD AND SYSTEM FOR MICROWAVE IMAGING SYSTEM

Pub. No.:    WO/2018/196248    International Application No.:    PCT/CN2017/100402
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Sep 05 01:59:59 CEST 2017
IPC: G01S 7/36
Applicants: SHENZHEN VICTOOTH TERAHERTZ TECHNOLOGY CO., LTD.
深圳市无牙太赫兹科技有限公司
SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION
深圳市太赫兹科技创新研究院
Inventors: QI, Chunchao
祁春超
WU, Guangsheng
吴光胜
ZHAO, Shukai
赵术开
XIAO, Qian
肖千
WANG, Aixian
王爱先
Title: DIRECT WAVE SUPPRESSION METHOD AND SYSTEM FOR MICROWAVE IMAGING SYSTEM
Abstract:
Disclosed are a direct wave suppression method and system (100) for a microwave imaging system. By means of carrying out a series of filtering operations, such as conversion from a frequency domain to a time domain, filtering, conversion from the time domain to the frequency domain, and cancellation subtraction, on an echo signal set composed of echo signals obtained by a vertical linear array antenna in all the equivalent antenna collection positions thereof, interference caused by a direct wave signal can be effectively suppressed, thus improving the sensitivity of an echo signal receiver, simplifying the subsequent imaging processing process and improving the imaging performance of a microwave imaging system. Thus, an accurate image of a target object can be obtained.