Sequences design using orthogonal polynomials to mitigate side-lobes for MIMO radar and SAR imaging application

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-20 DOI:10.1016/j.aeue.2025.155724

Ankur Thakur , Naman Garg , Anshu Thakur , Davinder Singh Saini

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Abstract

Transmit radar sequences are designed for side-lobes mitigation in multiple-input multiple-output (MIMO) radar systems. This paper uses orthogonal polynomials to design sequences by varying the optimizing parameter

γ

to achieve significant bandwidth and minimal side-lobes simultaneously. Those polynomial orders are chosen which provide the wider bandwidth at optimal

γ

value. The value of

γ

has to be optimized for higher side-lobes reduction. In MIMO radar, the proposed Chebyshev orthogonal polynomial (COP) and Legendre orthogonal polynomial (LOP) sequences are analyzed with different numbers of transmitting antennas to mitigate peak side-lobe levels (PSL) and cross-correlation side-lobe levels (CCSL). Further, the least square estimate (LSE) and Capon estimate (CE) techniques are used to analyze the performance of the designed sequences for synthetic aperture radar (SAR) imaging applications. The proposed sequences effectiveness is compared to the counterpart methods for validation purposes.

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.

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