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本文介绍以IBM—PC/XT机为基础的离线自回归谱分析系统,给出该系统对多普勒血流信号处理所获得的动态功率谱。实验结果表明,该系统对血流信号的处理结果,与FFT系统的处理结果相比,具有分辨率高、方差小等优点。
This paper introduces an offline autoregressive spectral analysis system based on IBM-PC / XT, and gives the dynamic power spectrum of the system for Doppler blood flow signal processing. The experimental results show that compared with the FFT system, the system has the advantages of high resolution and small variance in the processing of blood flow signals.