Joint Design of Horizontal and Vertical Polarization Waveforms for Polarimetric Radar Via SINR Maximization

• Published in: IEEE transactions on aerospace and electronic systems Vol. 59; no. 3; pp. 1 - 39
• Main Authors: Cheng, Xu, Wu, Linlong, Ciuonzo, Domenico, Wang, Wei
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.06.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Figure of merit; Horizontal polarization; Interference; Iterative algorithms; Local waveform constraints; majorization -minimization (MM); Optimization; polarimetric radar; Polarimetry; Proposals; Radar; Radar polarimetry; Radar remote sensing; Radar tracking; Signal to noise ratio; signal-dependent clutter; Vertical polarization; waveform design; Waveforms
• ISSN: 0018-9251; 1557-9603
• DOI: 10.1109/TAES.2022.3223887

For an extended target with different polarimetric response, one way of improving the detection performance is to exploit waveform diversity on the dimension of polarization. In this paper, we focus on joint design of transmit signal and receive filter for polarimetric radars with local waveform constraints. Considering the signal-to-interference-plus-noise ratio (SINR) as the figure of merit to optimize, where the average Target-Impulse-Response Matrix (TIRM) within a certain Target-Aspect-Angle (TAA) interval is employed as the target response, the waveform is decomposed and then designed for both horizontal and vertical polarization segments, subject to energy and similarity constraints. An iterative algorithm is proposed based on the majorization-minimization (MM) method to solve the formulated problem. The developed algorithm guarantees the convergence to a B-stationary point, where in each iteration, optimal horizontal and vertical transmit waveforms are respectively solved by using the feasible point pursuit and successive convex approximation (FPP-SCA) technique. Experiment results show the effectiveness of the proposed algorithm, the robustness of the output SINR against the TAA change, and the advantages of polarization diversity and local design.