Microwave spectrum sensing based on photonic time stretch and compressive sampling.

@article{Chi2013MicrowaveSS,
  title={Microwave spectrum sensing based on photonic time stretch and compressive sampling.},
  author={Hao Chi and Yin Chen and Yuan Mei and Xiaofeng Jin and Shilie Zheng and Xianmin Zhang},
  journal={Optics letters},
  year={2013},
  volume={38 2},
  pages={136-8}
}
An approach to realizing microwave spectrum sensing based on photonic time stretch and compressive sampling is proposed. The time stretch system is used to slow down the input high-speed signal and the compressive sampling based on random demodulation can further decrease the sampling rate. A spectrally sparse signal in a wide bandwidth can be captured with a sampling rate far lower than the Nyquist rate thanks to both time stretch and compressive sampling. It is demonstrated that a system with… CONTINUE READING
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