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Diffstat (limited to 'macros/cheb2ord.sci')
| -rw-r--r-- | macros/cheb2ord.sci | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/macros/cheb2ord.sci b/macros/cheb2ord.sci index 27ca7e6..7da32c9 100644 --- a/macros/cheb2ord.sci +++ b/macros/cheb2ord.sci @@ -12,18 +12,15 @@ function [n, Wc] = cheb2ord(Wp, Ws, Rp, Rs) //Minimum filter order of a digital Chebyshev type II filter with the desired response characteristics. - //Calling Sequence //n = cheb2ord(Wp, Ws, Rp, Rs) //[n, Ws] = cheb2ord(Wp, Ws, Rp, Rs) - //Parameters //Wp: scalar or vector of length 2 (passband edge(s)), all elements must be in the range [0,1] //Ws: scalar or vector of length 2 (stopband edge(s)), all elements must be in the range [0,1] //Rp: passband ripple in dB. //Rs: stopband attenuation in dB. //n: Minimum order of filter satisfying given specs. - //Description //This function computes the minimum filter order of a Chebyshev type II filter with the desired response characteristics. //Stopband frequency ws and passband frequency wp specify the the filter frequency band edges. @@ -32,7 +29,6 @@ function [n, Wc] = cheb2ord(Wp, Ws, Rp, Rs) //If ws>wp then the filter is a low pass filter. If wp>ws, then the filter is a high pass filter. //If wp and ws are vectors of length 2, then the passband interval is defined by wp and the stopband interval is defined by ws. //If wp is contained within the lower and upper limits of ws, the filter is a band-pass filter. If ws is contained within the lower and upper limits of wp, the filter is a band-stop or band-reject filter. - //Examples //Wp = 40/500; //Ws = 150/500; |