基于FPGA设计DSP的实践与改进[中国电子设计网] Key Words: Design flow；DSP Builder；Sine signal model；AM modulate model [gap=162]关键词：设计流程；DSP Builder；正弦信号模型；AM调制模型
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以往这类问题主要针对一维稀疏向量，且都直接采用正弦信号模型开始分析。
Previous sparse band coherent processing methods are mainly for one-dimensional sparse vector and directly use sine signal model for analysis.
由于该辨识方法没有将继电和过程输出近似为正弦信号， 获得的SOPDT模型能更准确地反映过程的动态特性。
Since the identification method does not approximate the outputs of relay and process as sinusoidal signals, the obtained SOPDT model can represent the process dynamics more accurately.
本文采用语音信号的正弦表示方法并利用耳蜗模型提取了语音信号的基本特征参数，建立了一个语音分析／合成系统。
The sinusoidal representation of speech signal and a cochlear model are used to extract speech parameters in this paper, and a speech analysis/synthesis system is developed using the model.
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