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本文介绍了以IBM-PC/XT机为基础的超声Doppler血流信号自回归(AR)谱分析系统,并给出了该系统的处理结果。实验表明,AR谱估计比FFT谱估计具有分辨率高,随机起伏误差小等优点。
In this paper, an autoradiography (AR) spectral analysis system based on IBM-PC / XT is introduced, and the processing results of this system are given. Experiments show that the AR spectral estimation has the advantages of high resolution and small random fluctuation error compared with the FFT spectral estimation.