Search International and National Patent Collections

1. (WO2018045594) SPACE-TIME ADAPTIVE PROCESSING METHOD AND APPARATUS BASED ON CO-PRIME PULSE RECURRENCE INTERVAL

Pub. No.:    WO/2018/045594    International Application No.:    PCT/CN2016/098756
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Tue Sep 13 01:59:59 CEST 2016
IPC: G01S 7/41
Applicants: SHENZHEN UNIVERSITY
深圳大学
Inventors: YANG, Zhaocheng
阳召成
MA, Yuanbin
马源斌
HUANG, Jingxiong
黄敬雄
HUANG, Jianjun
黄建军
Title: SPACE-TIME ADAPTIVE PROCESSING METHOD AND APPARATUS BASED ON CO-PRIME PULSE RECURRENCE INTERVAL
Abstract:
The present invention is applicable to the technical field of radar signal processing and array signal processing. Provided are a space-time adaptive processing method and apparatus based on a co-prime pulse recurrence interval. The method comprises: step S1, receiving pulses emitted by using a co-prime way, and constructing a virtual pulse Ps by using a time delay among the received pulses; step S2, constructing a virtual snapshot xv according to the constructed virtual pulse; step S3, estimating a covariance matrix RCPRI-SMI of clutters and noises by using the constructed virtual snapshot; and step S4, designing a space-time filter by using the obtained covariance matrix, so as to perform clutter suppression. By means of the provided method and apparatus, the problems related to a distance and Doppler ambiguity can be resolved to some extent, the electronic interference resistance capability can be improved, and the flexibility of a system can be improved.