www.gusucode.com > sigdemos 工具箱matlab源码程序 > sigdemos/private/scalewinfo.m
function [A,V,P,S] = scalewinfo(winobj,convType) %SCALEWINFO computes acceleration, velocity, etc from a window % [A,V,P,S] = SCALEWINFO(WINF,PARAM,NP,TYPE) - returns the % acceleration(A), velocity(V), position(P) and the necessary % scaling(S) to produce a unit change in position from the % supplied window function. The window function is supplied % as a function handle: WINF. The window handle should % refer to a zero-order window that can be converted to a first- % order window by appling the WINORDERFIRST function. The % desired conversion technique should be supplied by the % TYPE parameters. Also, if the passed window handle supports % a parameter, it should be passed by PARAM. The generated % first-order window is applied as an acceleration profile. % The resulting waveforms will have NP points and have a position % value of 1 at the last point. % % [A,V,P] = SCALEWINFO(WINF,PARAM,NP,TYPE) - same as above % except the Scaling term is not returned. % % See also WINDTRANDEMO, WINORDERFIRST, SCALEWINZO % Author(s): A. Dowd % Copyright 1988-2002 The MathWorks, Inc. narginchk(2,2); Tp = 1; A = winorderfirst(winobj,convType)'; V = winintegrate(A,Tp); P = winintegrate(V,Tp); Pcum = P(end); A = A/Pcum; V = V/Pcum; P = P/Pcum; if nargout > 3, S = Pcum; end % [EOF] scalewinfo.m