低阶LP模对应的归一化截止频率

低阶LP模对应的归一化截止频率是Wn。在巴特沃斯滤波器中，使用` = buttord(wp,ws,Rp,Rs)`来计算阶数和归一化频率Wn。而在椭圆滤波器中，使用` = ellipord(Wp,Ws,Rp,Rs)`来确定滤波器的最小阶数n和归一化的低通滤波器截止频率。因此，Wn即为低阶LP模对应的归一化截止频率。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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