Range-Doppler domain signal processing for medium PRF ubiquitous radar

Abstract

Ubiquitous radar is a multi-beam staring system that is capable of achieving highly sophisticated Doppler discrimination. This paper focuses on the range-Doppler domain signal processing method for medium PRF (Pulse Repetition Frequency) ubiquitous radar. Firstly, the system architecture is introduced and the range-Doppler domain characteristics are analyzed based on the data of a ubiquitous radar test bed. Then a method of unwanted Doppler echoes detection and analysing is proposed. Finally, a processing scheme is proposed to handle the Doppler ambiguity problem in the medium FPF system. The testing results confirm the feasibility of the proposed method.