Chebyshev类型i过滤器订单/p>
[a href="//www.tatmou.com/au/help/signal/ref/#mw_02d636c0-4564-4791-bcd1-d03360a81cbf" class="intrnllnk">
返回最低阶code class="literal">N./code>Chebyshev I型筛选的滤波器不超过code class="literal">rp./code>在通带中dB,至少有code class="literal">卢比/code>停车中的DB衰减。相应截止频率的标量(或向量)code class="literal">WP./code>也被退回。/p>
N./code>那a href="//www.tatmou.com/au/help/signal/ref/#mw_0263bee4-8834-4432-b632-422b7a7fc110" class="intrnllnk">
WP./code>] = cheb1ord(a href="//www.tatmou.com/au/help/signal/ref/#mw_0263bee4-8834-4432-b632-422b7a7fc110" class="intrnllnk">
WP./code>那a href="//www.tatmou.com/au/help/signal/ref/#mw_13c04081-e679-43ff-bfb5-00e6db6fc116" class="intrnllnk">
WS./code>那a href="//www.tatmou.com/au/help/signal/ref/#mw_485106f3-d1c6-4ec3-9b74-f1f95b61c127" class="intrnllnk">
rp./code>那a href="//www.tatmou.com/au/help/signal/ref/#mw_a7319451-d89e-4e4b-964c-23cf0103730d" class="intrnllnk">
卢比/code>的)/code>
[a href="//www.tatmou.com/au/help/signal/ref/#mw_02d636c0-4564-4791-bcd1-d03360a81cbf" class="intrnllnk">
设计LOPPASS,高通,带通或BANDSTOP模拟Chebyshev I型滤波器截止角频率code class="literal">WP./code>。/p>
N./code>那a href="//www.tatmou.com/au/help/signal/ref/#mw_0263bee4-8834-4432-b632-422b7a7fc110" class="intrnllnk">
WP./code>] = cheb1ord(a href="//www.tatmou.com/au/help/signal/ref/#mw_0263bee4-8834-4432-b632-422b7a7fc110" class="intrnllnk">
WP./code>那a href="//www.tatmou.com/au/help/signal/ref/#mw_13c04081-e679-43ff-bfb5-00e6db6fc116" class="intrnllnk">
WS./code>那a href="//www.tatmou.com/au/help/signal/ref/#mw_485106f3-d1c6-4ec3-9b74-f1f95b61c127" class="intrnllnk">
rp./code>那a href="//www.tatmou.com/au/help/signal/ref/#mw_a7319451-d89e-4e4b-964c-23cf0103730d" class="intrnllnk">
卢比/code>那code class="argument">s/code>的)/code>
Cheb1ord./code>使用Chebyshev低通滤波器订购预测公式a href="//www.tatmou.com/au/au/help/signal/ref/cheb1ord.html" class="intrnllnk">[1]/a>。该函数在模拟域中执行模拟和数字案例的计算。对于数字情况,它将频率参数转换为S.pan class="emphasis">S./em>- 在订单和自然频率估算过程之前,然后将它们转换回来S.pan class="emphasis">Z./em>-领域。/p>
Cheb1ord./code>首先通过将所需滤波器的通带频率转换为1 rad / s(用于低通或高通滤波器)或-1和1 rad / s(用于带通或带柄过滤器)来开发低通滤波器原型。然后,它计算低通滤波器所需的顺序和自然频率,以确切地使用所示的值code class="function">Cheby1./code>功能。/p>
[1] Rabiner,Lawrence R.和Bernard Gold。em class="citetitle">数字信号处理的理论与应用。/em>Englewood Cliffs,NJ:Prentice-Hall,1975年。/p>
纽扣/code>
|S.pan itemscope itemtype="//www.tatmou.com/help/schema/MathWorksDocPage/SeeAlso" itemprop="seealso">Cheb2ord./code>
|S.pan itemscope itemtype="//www.tatmou.com/help/schema/MathWorksDocPage/SeeAlso" itemprop="seealso">Cheby1./code>
|S.pan itemscope itemtype="//www.tatmou.com/help/schema/MathWorksDocPage/SeeAlso" itemprop="seealso">埃利双标/code>
|S.pan itemscope itemtype="//www.tatmou.com/help/schema/MathWorksDocPage/SeeAlso" itemprop="seealso">凯塞罗德/code>