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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Previous sparse band coherent processing methods are mainly for one-dimensional sparse vector and directly use sine signal model for analysis.
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。
By using moving one period sine wave model, the precise demodulation of PM signal wave is achieved.
通过使用一个周期的正弦波曲线模型的滑动拟合法，实现了正弦载波相位调制信号波形的精确解调。
The intensity and position samples of the final-alignment signal are fitted with a cosine or sine curve, and then the series of peak points are derived from the model parameters.
利用余弦或正弦曲线对该精对准信号进行拟合，得到一系列的波峰点。
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