Radar Target Simulator Based on Swept-Wavelength Optical Source

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-03-28 DOI:10.1109/LPT.2025.3574313

Yunlu Xing;Zhengyuan Zhu;Shangyuan Li;Xiaoxiao Xue;Xiaoping Zheng

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引用次数: 0

Abstract

Radar target simulators (RTSs) play an important role in testing and verifying radar systems. Conventional electronic-based RTSs are not suitable for testing broadband radar systems due to the limited bandwidth. Various photonics-based radar target simulators have been proposed to overcome the issues. However, these schemes cannot simulate Doppler frequency shift accurately while the bandwidth of the radar-under-test (RUT) is large and the simulated target moving fast. To solve these problems, a radar target simulator based on swept-wavelength optical source is proposed in this letter. Incoherent broadband optical source (BOS) and tunable fiber Fabry-Perot filter (FFPF) are used to assemble a swept-wavelength optical source. The RUT’s transmitted signal is modulated to this optical source. Continuously time-varying delay of RTS can be achieved by transmitting the swept-wavelength optical signal through dispersion module. Thus, we can achieve simulation of target motion. In the experiment, the velocity of the simulated target reached 5130 m/s. Moreover, multi-band radar signals can be simultaneously processed.

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基于扫描波长光源的雷达目标模拟器

雷达目标模拟器（RTSs）在雷达系统的测试和验证中起着重要作用。由于带宽的限制，传统的基于电子的rts不适合测试宽带雷达系统。为了克服这些问题，人们提出了各种基于光子的雷达目标模拟器。然而，当待测雷达带宽较大、模拟目标运动速度较快时，这些方案无法准确模拟多普勒频移。为了解决这些问题，本文提出了一种基于扫描波长光源的雷达目标模拟器。采用非相干宽带光源（BOS）和可调谐光纤法布里-珀罗滤波器（FFPF）组成扫描波长光源。车辙的传输信号被调制到这个光源。通过色散模块传输扫描波长的光信号，可以实现RTS的连续时变延迟。从而实现目标运动的仿真。在实验中，模拟目标的速度达到5130 m/s。此外，可以同时处理多波段雷达信号。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.