The Synchronization Design of Multi-channel Digital TR Module for Phased Array Radar

Abstract

Multi-channel synchronization is a key problem in the design of digital phased array radar. The synchronization performance between transmitting channels directly affects the space synthesis of transmitting signals, resulting in the decrease of beam gain and pointing performance. The synchronization index between receiving channels will affect the performance of receiving beam and lead to the decrease of system Angle measurement performance. Aiming at the synchronization problem under the background of multi-channel high-speed sampling rate, this paper puts forward the corresponding synchronization design, which solves the core problems such as inter-channel clock synchronization, baseband data synchronization and NCO synchronization, and can provide reference for the synchronization design of related phased array radar.