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《Laser & Infrared》 2002-01
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All-digital Discriminator by Using a CPLD Chip

LU Wei,GAO Ming, WANG Hai hong,WANG Qi,SHANG Tie liang (Institute of Opto Electronics,Harbin Institute of Technology,Harbin 150001,China)  
The paper first briefly summarizes the perspective of optical pulse offset frequency locking techniques applied to laser radar and their current development at domestic and abroad.Then it introduces the principle of the CPLD chip and its development,and presents the idea of designing an all digital discriminator which can be applied to discriminating frequency in an optical pulse heterodyne by using a CPLD chip.Finally,it describes the design and development work of the discriminator,realizing the optical pulse offset frequency locking test.This discriminator works at a band width of 120MHz
【CateGory Index】: TN957.5
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