高效QAM信号解调设备的研制

根据高效QAM信号解调设备的功能指标、技术指标要求,采用ADC、FPGA、数字信号处理、单片机和数字解调等技术,实现对高效QAM信号的有效解调,满足了高质量的军事侦察和控守能力,解决了解调入锁门限高、误码率高、解调速率不能连续可调等解调关键难题。应用表明,高效调制信号控守能力明显增强,控守时间大大延长,情报生产能力进一步提高,推广应用前景广阔。

Development of high activity QAM signal demodulation equipment

Function and technology indexes requirements of high activity QAM （Quadrature Amplitude Modulation） signal are analyzed. ADC, FPGA, digital signal processing, SCM, digital demodulation and other technologies are used, which achieve the effective demodulation of high activity QAM signal, satiety high quality military detection and controlling capacity, solve the key demodulation difficulties of high demodulation capture broadband, high BER （Bit Error Rate）and un-consecutive demodulation of demodulation ratio. The applied results indicate, the controlling ability of high activity modulation signal have significant enhancement, controlling time is greatly extended, intelligence capacity improve further and application prospects is broad.