Research On Engineering Algorithms Of Wideband Radar Intra-pulse Modulation Characteristic Analysis

Regarding XX electronic reconnaissance as major application background, this thesis centers the problems of engineering-oriented application of digital signal processing technique and SoPC (System on a Programmable Chip) reconfigurable technology in radar intra-pulse modulation characteristic analysis. It also conducts in-depth research in five different engineering-oriented algorithms of intra-pulse modulation characteristic analysis. A reconnaissance signal processing system based on SoPC reconfigurable technology is designed and implemented. It makes the radar signal reconnaissance come true. The major content is shown in the following part:At the beginning, it introduces the background of the subject. And also, the home and abroad research status and trends are summarized. Meanwhile, intra-pulse modulation characteristic analysis is briefly described.Then, five algorithms are shown including instant autocorrelation algorithm, Hilbert transform, Fourier transform, WVD analysis and wavelet analysis. The appliable conditions of different algorithms are set forth as a keynote.In the next place, the engineering implementation of intra-pulse modulation characteristic analysis is mainly introduced. According to different algorithms traits, three designed modes based on SoPC are used to implement them which involve Hardware Main Mode, Software Main Mode and Hardware Software Joint Mode. At the same time, The apriority-decision mode of incorporate signal processing system on wideband and narrowband signal reconnoitring is designed and implemented. The scheme on reconfigurating different algorithms in realtime are described. And also, The function is validated and performance is tested.Finally, the main achievements of this thesis are summarized. Especially, the main innovations and researches of the thesis are presentated. The research gaps and the prospect of the further work are pointed out.