Radar signal interception receiver based on digital channelizer

This paper addresses the concept of digital channelizer as a promising solution to overcome the real-time signal detection and analysis challenges for radar signal interception. By employing digital channelizer after high-speed ADC, the intercepted broadband signals can be divided into numbers of sub-channel signals, the signal detection and analysis tasks can then be performed at lower speed after decimation in sub-channels. The sub-channel signal detection and parameter measurement modules are developed to perform signal processing tasks. A realization example based on multi-FPGA chips and its test results are presented to consolidate the proposed signal interception receiver structure.