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Range and Velocity Estimation of Moving Targets Using Multiple Stepped-frequency Pulse Trains
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Sensors 2008, 8(5), 3429-3437; doi:10.3390/s8053429

Motion Compensation of Moving Targets for High Range Resolution Stepped-Frequency Radar

Department of Electronic Engineering, Tsinghua University, Beijing 100084, PR China
Author to whom correspondence should be addressed.
Received: 7 May 2008 / Accepted: 21 May 2008 / Published: 23 May 2008
(This article belongs to the Special Issue Aerospace Sensor Systems)
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High range resolution (HRR) profiling using stepped-frequency pulse trains suffers from range shift and the attenuation/dispersion of range profiles while the target of interest is moving. To overcome these two drawbacks, a new algorithm based on the maximum likelihood (ML) estimation is proposed in this paper. Without altering the conventional stepped-frequency waveform, this algorithm can estimate the target velocity and thereby compensate the phase errors caused by the target’s motion. It is shown that the velocity can be accurately estimated and the range profile can be correctly reconstructed. View Full-Text
Keywords: high resolution; radar imaging; stepped-frequency; motion compensation high resolution; radar imaging; stepped-frequency; motion compensation

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Liu, Y.; Meng, H.; Zhang, H.; Wang, X. Motion Compensation of Moving Targets for High Range Resolution Stepped-Frequency Radar. Sensors 2008, 8, 3429-3437.

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