Design and Implementation of High Speed Data Transmission for X-Band Dual Polarized Weather Radar

Abstract

Based on the fact that the x-band weather radar transmits data bandwidth is big in real time, and the distance between the weather station radar and the computer room is far away, a full duplex high-speed data transmission scheme based on optical fiber is designed and implemented on Xilinx FPGA. For the differences between XC7K410T GTX and XC7K325T GTX, it is necessary to adjust the parameters such as pre/deemphasis and receive equalization value, receiving terminal voltage and transmitting differential voltage swing that ensure normal data transmission and reception between the two. The suitable communication parameters for the hardware are measured by IBERT to set the transceiver GTX, and then the high-speed transceiver interface of the system is designed by the custom transmission data frame protocol, and the transmission rate of the single channel 10Gb/s is realized. It has been successfully applied in the x-band dual-polarized weather radar system of the company.