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当前的差分相移键控(DPSK)数据传输系统大多是采用独立的数据调制解调终端设备和收发信设备组成的,集成度低、可靠性较差,存在内部信号量化噪声。通过应用现场可编程门阵列(FPGA)加高速数字信号处理设计技术,将数据传输系统中的信号进行DPSK调制,基带到射频信号的数字上变频,以及信号的解调与射频到基带信号数字下变频进行一体化设计,解决了DPSK调制解调终端设备与射频信道设备相互独立所带来的集成度低、可靠性差,以及设备间信号变换引起信号受损等问题。
Current differential phase shift keying (DPSK) data transmission systems are mostly composed of independent data modem terminals and transceivers, with low integration, poor reliability and internal signal quantization noise. Through the application of field programmable gate array (FPGA) plus high-speed digital signal processing design technology, the data transmission system DPSK modulation signal, the baseband to RF signal digital upconversion, and signal demodulation and RF to baseband signal digital The integrated design of frequency conversion solves the problems of low integration, poor reliability and signal damage caused by the signal conversion between devices due to the independence of the DPSK modem terminal device and the radio frequency channel device.