matlab-切比雪夫滤波系数生成

系数生成代码
2阶cheby2滤波器，截止频率为35Hz，带阻系数35dB

% Sampling Frequency
Fs    = [4500 4800	5625 6250 7500 8000	9000 9375 10000	11250 12000	12500];
% Order
N     = 2;
% Stopband Frequency
Fstop = 35;
% Stopband Attenuation (dB)
Astop = 35;

for i=1:length(Fs)
    % Construct an FDESIGN object and call its CHEBY2 method.
    h  = fdesign.highpass('N,Fst,Ast', N, Fstop, Astop, Fs(i));
    Hd = design(h, 'cheby2');
    [b, a] = tf(Hd);
    str = ['// Fs=' num2str(Fs(i),'%.0f') ' Fc=' num2str(Fstop,'%.0f') '\n'];
    fprintf(str);
    disp(sprintf('%.17f, ', b));
end
fprintf('---------------------------\n');
for i=1:length(Fs)
    % Construct an FDESIGN object and call its CHEBY2 method.
    h  = fdesign.highpass('N,Fst,Ast', N, Fstop, Astop, Fs(i));
    Hd = design(h, 'cheby2');
    [b, a] = tf(Hd);
    str = ['// Fs=' num2str(Fs(i),'%.0f') ' Fc=' num2str(Fstop,'%.0f') '\n'];
    fprintf(str);
    disp(sprintf('%.17f, ', a));
end