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探测系统对输入的空间瞬态光辐射信号进行实时识别处理,反演估算出空间瞬态信号能量大小并报告发生时刻。采用DSP+CPLD的数字处理方案,利用DSP的高速数字信号处理特性及CPLD的复杂逻辑可编程特性,可实现对瞬态信号的实时识别和处理。其中用CPLD实现A/D变速率采样,解决了嵌入式系统线路板面积有限与实时处理需要大容量存储空间的矛盾。
The detection system realizes the real-time recognition and processing of the input transient light radiation signal, and inverses and estimates the energy of the space transient signal and reports the occurrence moment. Using DSP + CPLD digital processing solutions, the use of DSP’s high-speed digital signal processing features and CPLD complex logic programmable features, enabling instantaneous signal recognition and processing. Among them, the CPLD realizes A / D variable-rate sampling, which solves the conflict between the limited area of the embedded system circuit board and the large-capacity storage space needed for real-time processing.