Title :
Microwave spectrum sensing based on photonic time stretch with a large stretch factor
Author :
Boyu Xu ; Wulue Lv ; Jiamu Ye ; Feng Zhou ; Jinhai Zhou ; Xiaofeng Jin ; Xianmin Zhang ; Hao Chi ; Shilie Zheng
Author_Institution :
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
In this paper, a microwave spectrum sensing system based on photonic time stretch with large stretch factor beyond 80 is designed and experimentally demonstrated. A 10 GHz input signal is turned into a 122 MHz signal after stretching and the signal spectrum is successfully reconstructed by a DSP. The mean square error for spectrum sensing of X-band microwave signal in the experiment is measured to be 0.34 MHz.
Keywords :
cognitive radio; digital signal processing chips; mean square error methods; microwave detectors; radio spectrum management; signal detection; signal reconstruction; DSP; X-band microwave signal; frequency 0.34 MHz; frequency 10 GHz; frequency 122 MHz; mean square error; microwave spectrum sensing system; photonic time stretch factor; signal spectrum reconstruction; Dispersion; Microwave communication; Microwave measurement; Microwave photonics; Optical pulses; Fiber Dispersion; Photonic time stretch; Spectrum Sensing;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2013 12th International Conference on
Conference_Location :
Chengdu
DOI :
10.1109/ICOCN.2013.6617231
