Coherent Pulsed-FDA Radar Receiver Design With Time-Variance Consideration : SINR and CRB Analysis
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 8074796 |
Pages (from-to) | 200-214 |
Journal / Publication | IEEE Transactions on Signal Processing |
Volume | 66 |
Issue number | 1 |
Online published | 19 Oct 2017 |
Publication status | Published - 1 Jan 2018 |
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Abstract
Different from conventional phased-array providing only angle-dependent beampattern, frequency diverse array (FDA) produces angle-range-dependent and time-variant transmit beampattern. Existing investigations show that FDA offers improved performance in interference suppression and target localization, but the time-variant beampattern will bring interferences to subsequent matched filtering. More seriously, the range-dependent signal phase may be canceled out in the filtering process. In fact, traditional single-channel receiver does not fully exploit the multicarrier feature in FDA signals. In this paper, we propose a multichannel matched filtering structure with considering the time-variance property for receiving pulsed-FDA signals. A coherent pulsed-FDA radar signal model to deal with the angle-range-dependent and time-variance problem is devised under additive colored Gaussian noise scenarios, followed by the corresponding waveform design principle. Moreover, closed-form expressions of the output signal-to-interference-plus-noise ratio and Cramér-Rao bounds for angle and range are derived. The proposed receiver design approach and corresponding theoretical performance derivations are verified by extensive numerical results.
Research Area(s)
- coherent receiver, Cramér-Rao bound (CRB), FDA receiver, Frequency diverse array (FDA), multi-channel processing, signal-to-interference-plus-noise ratio (SINR), time-variance
Citation Format(s)
Coherent Pulsed-FDA Radar Receiver Design With Time-Variance Consideration : SINR and CRB Analysis. / Gui, Ronghua; Wang, Wen-Qin; Cui, Can; So, Hing Cheung.
In: IEEE Transactions on Signal Processing, Vol. 66, No. 1, 8074796, 01.01.2018, p. 200-214.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review