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Sensors 2016, 16(6), 889; doi:10.3390/s16060889

Radar Constant-Modulus Waveform Design with Prior Information of the Extended Target and Clutter

1
Beijing Institute of Tracking and Telecommunications Technology (BITTT), Beijing 100094, China
2
Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Academic Editor: Scott E Palo
Received: 29 February 2016 / Revised: 8 April 2016 / Accepted: 8 June 2016 / Published: 17 June 2016
(This article belongs to the Section Remote Sensors)
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Abstract

Radar waveform design is of great importance for radar system performances and has drawn considerable attention recently. Constant modulus is an important waveform design consideration, both from the point of view of hardware realization and to allow for full utilization of the transmitter’s power. In this paper, we consider the problem of constant-modulus waveform design for extended target detection with prior information about the extended target and clutter. At first, we propose an arbitrary-phase unimodular waveform design method via joint transmitter-receiver optimization. We exploit a semi-definite relaxation technique to transform an intractable non-convex problem into a convex problem, which can then be efficiently solved. Furthermore, quadrature phase shift keying waveform is designed, which is easier to implement than arbitrary-phase waveforms. Numerical results demonstrate the effectiveness of the proposed methods. View Full-Text
Keywords: radar waveform design; constant-modulus waveform; extended target detection; clutter; waveform optimization radar waveform design; constant-modulus waveform; extended target detection; clutter; waveform optimization
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.; Zhang, Y.; Liu, Y.; Xie, J. Radar Constant-Modulus Waveform Design with Prior Information of the Extended Target and Clutter. Sensors 2016, 16, 889.

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