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DOI码：10.3788/COL202018.123902

发表刊物：CHINESE OPTICS LETTERS

摘要：A photonic approach to concurrently measure the angle-of-arrival (AOA) and the chirp rate of a linear frequency modulated (LFM) signal is proposed and experimentally demonstrated. The measurement is achieved by estimating the differential frequency of a two-tone signal output by a dual-parallel Mach-Zehnder modulator and an additional asymmetry Mach-Zehnder interferometer. Experiments show that the AOA and the chirp rate are measured simultaneously, with an AOA measurement error of +/- 0.1 degrees at an signal-to-noise ratio (SNR) of 9.6 dB. When the SNR is -10.4 dB, the AOA error is +/- 1.3 degrees, and the chirp rate, measured as 210.2 +/- 1.5 Hz/ps, has a standard deviation of 0.7%. The measured chirp rate agrees well with the real LFM signal.

第一作者：Li, Shangyuan, Cao, Haidong, Zheng, Xiaoping

论文类型：J

文献类型：Article

卷号：18

期号：12

ISSN号：1671-7694

是否译文：否