www.gusucode.com > signal 工具箱matlab源码程序 > signal/+fspecs/@lpstop/lpstop.m
classdef lpstop < fspecs.abstractlpstop %LPSTOP Construct an LPSTOP object. % Copyright 1999-2015 The MathWorks, Inc. %fspecs.lpstop class % fspecs.lpstop extends fspecs.abstractlpstop. % % fspecs.lpstop properties: % ResponseType - Property is of type 'ustring' (read only) % NormalizedFrequency - Property is of type 'bool' % Fs - Property is of type 'mxArray' % FilterOrder - Property is of type 'posint user-defined' % Fstop - Property is of type 'posdouble user-defined' % Astop - Property is of type 'posdouble user-defined' % % fspecs.lpstop methods: % analogresp - Compute analog response object. % getdesignobj - Get the designobj. % getdesignpanelstate - Get the designpanelstate. % measureinfo - Return a structure of information for the measurements. % thisgetspecs - Get the specs. methods % constructor block function h = lpstop(varargin) %LPSTOP Construct a LPSTOP object. % H = LPSTOP(N,Fstop,Astop,Fs) constructs a lowpass filter specifications % object with stopband-edge specs. % % N is the filter order and must be a positive integer. % % Fstop is the stopband-edge frequency and must be a positive scalar % between 0 and 1 if no sampling frequency is specified or between 0 and % Fs/2 if a sampling frequency Fs is specified. % % Astop is the minimum stopband attenuation and it must be a positive % scalar. % % Fs is the sampling frequency. If Fs is not specified, normalized % frequency is assumed. If Fs is specified, it must be a positive scalar. % Author(s): R. Losada narginchk(0,4); % h = fspecs.lpstop; constructor(h,varargin{:}); h.ResponseType = 'Lowpass with stopband-edge specifications'; end % lpstop end % constructor block methods % public methods ha = analogresp(h) designobj = getdesignobj(~,str,sigonlyflag) s = getdesignpanelstate(this) minfo = measureinfo(this) specs = thisgetspecs(this) end % public methods methods (Hidden) % possibly private or hidden constructor(h,varargin) c = cparam(h) end % possibly private or hidden end % classdef