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用函数替换自回归 PSD 对象的语法

AR PSD 对象语法将在以后删除。下表给出了等效的推荐函数语法。该表使用 spectrum.burg 和 pburg 作为示例，但是，在做出适当替代后，对象到函数的替换语法适用于所有的 AR 频谱估算器：spectrum.burg 到 pburg，spectrum.cov 到 pcov，spectrum.mcov 到 pmcov，以及 spectrum.yulear 到pyulear。在每个示例中，x 是输入信号。

弃用的语法

替换语法

hBurg = spectrum.burg;
psd(hBurg,x);
 
pburg(x,4);
hBurg = spectrum.burg(order);
psd(hBurg,x);

pburg(x,order);
hBurg = spectrum.burg(order);
psd(hBurg,x,'NFFT',nfft);

pburg(x,order,nfft);
hBurg = spectrum.burg(order);
psd(hBurg,x,'Fs',fs);

pburg(x,order,[],fs);
hBurg = spectrum.burg(order);
psd(hBurg,x,'NFFT',nfft,'Fs',fs);

pburg(x,order,nfft,fs);
hBurg = spectrum.burg(order);
psd(hBurg, x,...,'FreqPoints','User Defined',...
'FrequencyVector',w);

pburg(x,order,w);
hBurg = spectrum.burg(order);
psd(hBurg,x,'FreqPoints','User Defined',...
'FrequencyVector',f,'Fs',fs);

pburg(x,order,f,fs);
hBurg = spectrum.burg
psd(...,'SpectrumType','TwoSided');

pburg(...,'twosided');
hBurg = spectrum.burg;
psd(...,'CenterDC',true);

pburg(x,...,'centered'); 
hBurg = spectrum.burg;
psd(...,'ConfLevel',p);

pburg(x,...,'ConfidenceLevel',p); 
hBurg = spectrum.burg;
hPSD = psd(...);
Pxx = hPSD.Data;
F = hPSD.Frequencies;

[Pxx,F] = pburg(...); 
hBurg = spectrum.burg;
hPSD = psd(...,'ConfLevel',p);
Pxx = hPSD.Data;
F = hPSD.Frequencies;
Pxxc = hPSD.ConfInterval;

[Pxx,F,Pxxc] = pburg(...);