利用窗函数法设计FIR滤波器，给出其抽样响应。
Using window function design FIR filter, given in response to its sample.
信号滤波器响应以及输出电平信号可以在电脑控制下进行调整。
Signal filter response and output level signals are also adjustable under computer control.
信号滤波器响应以及输出电平信号可以在电脑控制下进行调整。
Signal filter response and output level signals are also adjustable under computer control.
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