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《Remote Sensing Technology and Application》 2011-01
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Development of Analog Complex Correlator and Its Performance Test

WANG Xin-biao1,2,LIU Jing-yi1,LI Jing1,JIANG Jing-shan1 (1.Center for Space Science and Applied Research,Chinese Academy of Sciences,Beijing 100190,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100190,China)  
Passive remote-sensing technology requests high performance of complex correlator.An analog complex correlator has been introduced in this paper,The advantages of this correlator are low power consumption(compared to a digital correlator),small chip area and high sensitivity.Core components of the analog complex correlator are multiplier unit and wideband phase shifter,their manufacture and performance have been discussed and the results have been presented.We have tested the broadband phase characteristic of the correlator and simulated broadband phase-inversion process.The result of phase inversion accuracy has been given.
【CateGory Index】: TN623
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