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Sensors 2008, 8(2), 1343-1350; doi:10.3390/s8021343
Article

Range and Velocity Estimation of Moving Targets Using Multiple Stepped-frequency Pulse Trains

1,* , 1, 2 and 1
1 Department of Electronic Engineering, Tsinghua University, Beijing 100084, China 2 Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19716, USA
* Author to whom correspondence should be addressed.
Received: 2 February 2008 / Accepted: 20 February 2008 / Published: 22 February 2008
(This article belongs to the Special Issue Aerospace Sensor Systems)
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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.
Keywords: moving target; range and velocity estimation; stepped-frequency; robust phase unwrapping moving target; range and velocity estimation; stepped-frequency; robust phase unwrapping
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Li, G.; Meng, H.; Xia, X.-G.; Peng, Y.-N. Range and Velocity Estimation of Moving Targets Using Multiple Stepped-frequency Pulse Trains. Sensors 2008, 8, 1343-1350.

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