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《Journal of Ordnance Equipment Engineering》 2018-06
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Study of Envelope Removing Technique Based on Complementary M-Z Modulator

WANG Junda;JIN Rui;DONG Hongsong;CHEN Ying;CHEN Xiangning;Graduate School,Aerospace Engineering University;Institute of Space Information,Aerospace Engineering University;  
The design of photonic time-stretched analog-to-digital converter( PTS-ADC) system based on complementary dual-output Mach-Zehnder modulator( MZM) was carried out. And the envelope removing technique of PTS-ADC system based on complementary dual-output MZM is also presented. The principle of complementary dual Mach-Zehnder modulators which can suppress second-order harmonic in PTS-ADC is theoretically proved. And a comprehensive mathematical model for envelope removing technique is developed. The PTS-ADC based on dual-output Mach-Zehnder modulators is designed and simulated in the Optisystem software. And the RF signal with frequency of 80 GHz is sampled. The simulation results show that the system can realize the down-conversion processing and continuous sampling of the RF signal,and effective number of bits( ENOB) of 4. 11 is demonstrated.
【Fund】: 国家高技术研究发展计划(863计划)项目(2015AA7031093C)
【CateGory Index】: TN792
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