%0 Journal Article %A LU Hao %A WANG Zhenzhan %T Design of 3 GHz bandwidth digital-correlator %D 2011 %R 10.3778/j.issn.1002-8331.2011.01.016 %J Computer Engineering and Applications %P 56-59 %V 47 %N 1 %X To get all the four Stokes parameters and ocean surface field,a 3 GHz bandwidth digital correlator used in polarization radiometer is introduced.Four high-speed A/D Converters(ADC083000) are used to sample four signal channels at the same time.The sampling results are operated in the newest Field-Programmable Gate Array(FPGA)-Virtex5 from Xilinx to make correlation calculation with correlation results translated to computer through serial port.The structure of interfacing circuit and control system of the main modules are presented in detail.For dual polarimetric channels in radiometer,the system max sampling rate is 3 GHz and the resolution is 8 bit.
%U http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2011.01.016