摘要
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。
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 ect in the PC. Meteorological maps are storied in the PC making the management and usage of navigation meteorological information more effective.
出处
《农业科技与装备》
2009年第3期96-100,共5页
Agricultural Science & Technology and Equipment
