Generalized Ambiguity Function for Bistatic FDA Radar Joint Velocity, Range, and Angle Parameters

Gao, Xuchen; Xie, Junwei; Ding, Zihang; Zhang, Mengdi; Zhang, Haowei; Zhai, Haolong; Han, Weihang

doi:10.3390/rs17101784

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Generalized Ambiguity Function for Bistatic FDA Radar Joint Velocity, Range, and Angle Parameters

by

Xuchen Gao

¹

,

Junwei Xie

^1,*

,

Zihang Ding

¹,

Mengdi Zhang

²,

Haowei Zhang

¹

,

Haolong Zhai

¹ and

Weihang Han

¹

Air Defense and Antimissile School, Air Force Engineering University, Xi’an 710038, China

²

School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China

^*

Author to whom correspondence should be addressed.

Remote Sens. 2025, 17(10), 1784; https://doi.org/10.3390/rs17101784

Submission received: 25 March 2025 / Revised: 9 May 2025 / Accepted: 16 May 2025 / Published: 20 May 2025

(This article belongs to the Special Issue Array and Signal Processing for Radar)

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Abstract

The bistatic frequency diverse array (FDA) radar system is designed to exploit the beam autoscanning of FDA radar, providing a novel solution to address spatial synchronization challenges in bistatic radar architecture, unleashing bistatic radar’s advantage in low-observable target detection, main-lobe jamming (MLJ) suppression, etc. To lay the theoretical foundation for subsequent research on bistatic FDA radar systems, this study develops a generalized ambiguity function (GAF) framework, jointly characterizing target velocity, range, and angular parameters, which can provide a reference for transmitted signal optimization and bistatic geometric configuration design. This paper derives the mathematical model of the bistatic FDA radar system’s GAF and validates that its structure not only depends on the transmitted signal but also exhibits strong geometric dependency, where baseline length and target position jointly reshape the bistatic triangle through numerical simulations.

Keywords: bistatic frequency diverse array (FDA) radar; generalized ambiguity function (GAF); transmitted signal; bistatic geometric configuration

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MDPI and ACS Style

Gao, X.; Xie, J.; Ding, Z.; Zhang, M.; Zhang, H.; Zhai, H.; Han, W. Generalized Ambiguity Function for Bistatic FDA Radar Joint Velocity, Range, and Angle Parameters. Remote Sens. 2025, 17, 1784. https://doi.org/10.3390/rs17101784

AMA Style

Gao X, Xie J, Ding Z, Zhang M, Zhang H, Zhai H, Han W. Generalized Ambiguity Function for Bistatic FDA Radar Joint Velocity, Range, and Angle Parameters. Remote Sensing. 2025; 17(10):1784. https://doi.org/10.3390/rs17101784

Chicago/Turabian Style

Gao, Xuchen, Junwei Xie, Zihang Ding, Mengdi Zhang, Haowei Zhang, Haolong Zhai, and Weihang Han. 2025. "Generalized Ambiguity Function for Bistatic FDA Radar Joint Velocity, Range, and Angle Parameters" Remote Sensing 17, no. 10: 1784. https://doi.org/10.3390/rs17101784

APA Style

Gao, X., Xie, J., Ding, Z., Zhang, M., Zhang, H., Zhai, H., & Han, W. (2025). Generalized Ambiguity Function for Bistatic FDA Radar Joint Velocity, Range, and Angle Parameters. Remote Sensing, 17(10), 1784. https://doi.org/10.3390/rs17101784

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Generalized Ambiguity Function for Bistatic FDA Radar Joint Velocity, Range, and Angle Parameters

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