Theoretical Analysis of Multi-Carrier Agile Phased Array Radar

ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) Pub Date : 2020-05-01 DOI:10.1109/ICASSP40776.2020.9054035

Tianyao Huang, Nir Shlezinger, Xingyu Xu, Dingyou Ma, Yimin Liu, Yonina C. Eldar

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引用次数: 1

Abstract

Modern radar systems are expected to operate reliably in congested environments under cost and power constraints. A recent technology for realizing such systems is frequency agile radar (FAR), which transmits narrowband pulses in a frequency hopping manner. To enhance the target recovery performance of FAR in complex electromagnetic environments, and particularly, its range-Doppler recovery performance, multi-Carrier AgilE phaSed Array Radar (CAESAR) was proposed. CAESAR extends FAR to multi-carrier waveforms while introducing the notion of spatial agility. In this paper, we theoretically analyze the range-Doppler recovery capabilities of CAESAR. Particularly, we derive conditions which guarantee accurate reconstruction of these range-Doppler parameters. These conditions indicate that by increasing the number of frequencies transmitted in each pulse, CAESAR improves performance over conventional FAR, especially in complex environments where some radar measurements are severely corrupted by interference.

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多载波敏捷相控阵雷达的理论分析

现代雷达系统有望在成本和功率限制下的拥挤环境中可靠地运行。实现这种系统的最新技术是频率捷变雷达(FAR)，它以跳频方式传输窄带脉冲。为了提高FAR在复杂电磁环境下的目标恢复性能，特别是距离-多普勒恢复性能，提出了多载波敏捷相控阵雷达(CAESAR)。CAESAR将FAR扩展到多载波波形，同时引入了空间敏捷性的概念。本文从理论上分析了凯撒雷达的距离-多普勒恢复能力。特别地，我们推导了保证精确重建这些距离-多普勒参数的条件。这些条件表明，通过增加每个脉冲中传输的频率数量，CAESAR提高了传统FAR的性能，特别是在一些雷达测量受到干扰严重破坏的复杂环境中。

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ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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