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Sensors 2017, 17(11), 2574; doi:10.3390/s17112574

Radar Constant-Modulus Waveform Optimization for High-Resolution Range Profiling of Stationary Targets

Beijing Institute of Remote Sensing Information, Beijing 100192, China
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Received: 11 September 2017 / Revised: 25 October 2017 / Accepted: 27 October 2017 / Published: 8 November 2017
(This article belongs to the Section Remote Sensors)
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Abstract

The high-resolution range (HRR) profile is an important target signature in many applications (e.g., automatic target recognition), and the radar HRR profiling performance is highly dependent on radar transmitted waveforms. In this paper, we consider the constant-modulus (CM) waveform optimization problem to improve HRR profiling performance for stationary targets. Firstly, several fundamental bounds regarding the profiling ambiguity, stability, and accuracy are derived. Further investigation reveals that the stability and accuracy of HRR profiling are unified in the white noise case. Aimed at improving the profiling stability and accuracy, we design two types of CM radar waveforms—the arbitrary-phase and QPSK waveforms—through a customized Gaussian randomization method. The performance of LFM waveforms is also discussed. Numerical experiments show that the optimized CM waveforms can dramatically enhance the profiling performance over the unoptimized ones. View Full-Text
Keywords: high-resolution range profiling; radar waveform optimization; constant-modulus waveform; stationary target high-resolution range profiling; radar waveform optimization; constant-modulus waveform; stationary target
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yue, W.; Li, L.; Xin, Y.; Han, T. Radar Constant-Modulus Waveform Optimization for High-Resolution Range Profiling of Stationary Targets. Sensors 2017, 17, 2574.

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