According to digital FIR filtering theory, analyze and compare the methods of designing FIR filter.
根据FIR数字滤波器理论，分析比较实现fir滤波器的方法。
In measurement system software, the high-order FIR digital filter technology designed by using window functions method is used for filtering sample values.
测量系统的软件采用窗函数法设计的高阶FIR数字滤波技术对采样值进行滤波处理。
FIR digital filters realized on person al computer were used for signal filtering and cancellation of respiratory interference.
系统以普通个人计算机为基础实现了FIR数字滤波器，能够有效地滤除由呼吸等因素造成的干扰。
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