基于FPGA的无线气象传真图的识别

介绍基于FPGA接收JMH台的无线气象传真图的方案。此方案分为2部分：第1部分是将短波收信机接收到的SSB信号处理成调频传真信号;第2部分是将传真信号通过单芯片的FPGA转换成数字信号,进而在PC机上恢复和存储传真图像。气象传真图被存储在PC机上,可为航海气象信息的管理和利用提供方便。

Detecting Wireless Meteorological Facsimile Map Based on FPGA

A novel scheme for using FPGA to receive wireless metrological facsimile map sent by JMH is present in this paper. Two aspects of metrological facsimile map restoration must be finished: First, the SSB signal received by short-wave receiver should be processed into FM facsimile signal. Second, the digital signal after FM facsimile signal processed by signal-chip FPGA should be utilized to restore and store facsimile map including detecting remote control signal, controlling phase and selecting scan speed ec...