Xizhang Wei

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A new modified signal - the stepped-frequency train of LFM pulses with modulation of MPS (minimum peak sidelobe) biphasic coding and Costas frequency coding is proposed, whose spectrum function and ambiguity function are deduced respectively. Then the processing measure of the ranging system is illustrated in detail and the principle of the measure is(More)
The multi-frequency complementary phase-coded signal (MCPC) has caught much attention of researchers recently as a new system radar signal. This paper provides pulse compression technique for such radar signal. Direct match filtering and synthetic filtering are proposed to compress the echo signal. After comparing their performance via amount of(More)
The random pulse initial phase radar has potential applications in suppressing digital radio frequency memory (DRFM) repeat jamming, due to the significant differences between the repeat jamming and the true target echo in phases. However, owing to phase randomness and existence of false targets, the high sidelobe pedestal generated in correlation(More)
Due to good balance among spectrum efficiency, ambiguity function and peak-to-mean envelope power ratio (PMEPR), wideband Multi-Carrier Phase-Coded (MCPC) radar has caught much attention from researchers recently. Based on separation of sub carriers from multi-frequency structure, this paper provides velocity estimation method for such radar signal. After(More)
The MCPC signal using Orthogonal Frequency-Division Multiplexing structure has caught much attention of researchers recently since it has good anti-jamming capability, high spectrum efficiency and simple digital processing. This paper deduces ambiguity function expression of MCPC radar signal analyses its performance and discuss the influence of individual(More)
In this paper, the radar phenomenology of high voltage transmission line (HVTL) is studied for examining the feasibility of recognizing HVTL using the horizontal polarization millimeter-wave radar system. For this purpose, horizontal polarization RCS and high resolution range profile (HRRP) of some HVTL are calculated at 34 GHz. Based on the observed(More)