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arXiv · 2506.01637

Local Ambiguity Shaping for Doppler-Resilient Sequences Under Spectral and PAPR Constraints

Shi He·Lingsheng Meng·Yao Ge·Yong Liang Guan·David González G.·Zilong Liu
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Abstract

This paper focuses on designing Doppler-resilient sequences with low local Ambiguity Function (AF) sidelobes, subject to certain spectral and Peak-to-Average Power Ratio (PAPR) constraints. To achieve this, we propose two distinctoptimization algorithms: (i) an Alternating Minimization (AM) algorithm for superior Weighted Peak Sidelobe Level (WPSL) minimization, and (ii) a low-complexity Augmented Lagrangian-assisted Majorization Minimization (ALaMM) algorithm with effective WPSL suppression. The proposed schemes hold great potential for sequence design in future 6G and integrated sensing and communication applications, supporting robust sensing under spectral coexistence constraints in high-mobility scenarios.

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Shi He, Lingsheng Meng, Yao Ge, Yong Liang Guan, David González G., Zilong Liu. 2025-06-02. Local Ambiguity Shaping for Doppler-Resilient Sequences Under Spectral and PAPR Constraints. https://arxiv.org/abs/2506.01637

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