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DOI码：10.1364/OE.394407

发表刊物：OPTICS EXPRESS

摘要：This paper reports a photonic chirp rates estimator for the piecewise linear frequency modulated waveforms (PLFMWs). The estimator is based on the photonic self-fractional Fourier transform (FrFT) by utilizing the input PLFMW as the transform kernel. In this way, the self-FrFT operation can be finished with short latency time and the chirp rates of all LFM sub-pulses can be retrieved according to their fractional frequencies. In experiment, the chirp rates estimation of a four-stage PLFMW is performed. The measurement range from -964.47 GHz/mu s to 50.76 GHz/mu s with resolution of 0.0518 GHz/us is demonstrated for the experimental system. And the absolute measurement error within +/- 0.06 GHz/mu s and the relative measurement error less than 2% is also obtained. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

第一作者：Han, Guanyu, Li, Shangyuan, Xue, Xiaoxiao, Zheng, Xiaoping

论文类型：J

文献类型：Article

卷号：28

期号：15

页面范围：21783

ISSN号：1094-4087

是否译文：否