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介绍了以高速数字信号处理芯片ＴＭＳ３２０Ｃ３０为核心的数字信号处理系统。该系统具有１２位高速Ａ／Ｄ转换，转换时间８００ｎｓ。ＡＤ工作方式采用连续时间采样，不需ＣＰＵ干预，可进行全速转换，同时还具有８＋４位高速双通道Ｄ／Ａ输出，８位输入输出数据接口，６４ＫＲＡＭ，其中８ＫＲＡＭ与ＰＣ机共用构成主从工作方式，系统采用子空间旋转不变法（ＥＳＰＲＩＴ）估计频率。文中给出了系统原理及硬件设计框图、高分辨频率估计算法及Ｃ３０机器语言设计思想，最后给出了系统实验结果。
The digital signal processing system with high speed digital signal processing chip TMS320C30 as its core is introduced. The system has 12-bit high-speed A / D conversion, conversion time 800ns. AD work with continuous sampling time, without CPU intervention, full-speed conversion, but also has 8 +4 high-speed dual-channel D / A output, 8-bit input and output data interface, 64KRAM, 8KRAM and PC share the master and slave work Mode, the system uses subspace rotation invariant method (ESPRIT) to estimate the frequency. In this paper, the system principle and hardware design block diagram, high-resolution frequency estimation algorithm and C30 machine language design ideas are given, and finally the system experimental results are given.