Title :
Design and application of DRFM system based on digital channelized receiver
Author :
Zongbo, Wang ; Meiguo, Gao ; Yunjie, Li ; Haiqing, Jiang
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing
Abstract :
A model of DRFM system based on digital channelized receiver is introduced, it takes the advantages of channelized receiver to achieve broadband instantaneous frequency coverage, and with decimated data flow, the requirement of the memory capacity for DRFM system can be saved and make it possible to achieve real-time amplitude and frequency modulation process in radar countermeasure applications. The DAC works at lower speed compared with ADC sample rate. The theory of channelized receiver is first stated and the realization structure based on polyphase filters is derived. The hardware platform has been designed for the implementation of the DRFM model; it can act as the core subsystem for general radar countermeasure system.
Keywords :
amplitude modulation; broadband networks; electronic countermeasures; frequency modulation; ADC sample rate; DAC; DRFM system; broadband instantaneous frequency coverage; decimated data flow; digital channelized receiver; digital radio frequency memory; polyphase filters; radar countermeasure applications; real-time amplitude modulation; real-time frequency modulation; Bandwidth; Electronic countermeasures; Filters; Hardware; Pulse width modulation; RF signals; Radar applications; Radar countermeasures; Radio frequency; Real time systems;
Conference_Titel :
Radar, 2008 International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
978-1-4244-2321-7
Electronic_ISBN :
978-1-4244-2322-4
DOI :
10.1109/RADAR.2008.4653950
