The Study Of Electronic Reconnaissanee Signal Processing Technology Based On DSP

Electronic reconnaissance signal processing techniques play an increasinglyimportant role in modern electronic warfare, including estimation of signal parameter,modulation recognition of communication signals, specific emitter identification，andso on.The electronic reconnaissance signal processing technology based onADSP-TS101S is studied. Firstly, the research background of the article and thedevelopment trends of digital signal processing chip are introduced. The basicparameters of radar signal is provided，including the time of arrival (TOA), the pulsewidth, the pulse repetition interval (PRI), the carrier frequency, the angle of arrival(AOA), the pulse amplitude and the intra-pulse modulation parameters. Then, themethod of generate the pulse description word (PDW) is discussed.Secondly, the cumulative difference histogram (CDIF), the sequence differencehistogram (SDIF) and the PRI transformation algorithms are analyzed, which are mostcommonly used in electronic reconnaissance signal sorting. SDIF algorithm is adoptedfor sort electronic reconnaissance signal. The models of mono-pulse, linear frequencymodulation and binary phase coded signals are built for studying the properties in timedomain and frequency domain. The wavelet transform algorithm is used to extractingthe intra-pulse parameters.Finally, the processing modules of electronic reconnaissance signal are designedbased on ADSP-TS101S. The hardware circuit design details and data transmissionprocessing are analyzed.