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Range and Velocity Estimation of Moving Targets Using Multiple Stepped-frequency Pulse Trains
Gang Li1, Huadong Meng2, Xiang-Gen Xia3
1Department of Electronic Engineering, Tsinghua University, Beijing 100084, China. gangli@tsinghua.edu.cn.
Abstract:
Range and velocity estimation of moving targets using conventional steppedfrequencypulse radar may suffer from the range-Doppler coupling and the phasewrapping. To overcome these problems, this paper presents a new radar waveform namedmultiple stepped-frequency pulse trains and proposes a new algorithm. It is shown that byusing multiple stepped-frequency pulse trains and the robust phase unwrapping theorem(RPUT), both of the range-Doppler coupling and the phase wrapping can be robustlyresolved, and accordingly, the range and the velocity of a moving target can be accuratelyestimated.
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