vave2vint.m

来自「基于matlab的反演程序,用于地球物理勘探中射线追踪及偏移成像程序.」· M 代码 · 共 53 行

function vint=vave2vint(vave,t)
% VAVE2VINT: convert average velocity to interval velocity
%
% vins=vave2vint(vave,t)
%
% Convert average to interval velocity
% NOTE: It is illegal for you to use this software for a purpose other
% than non-profit education or research UNLESS you are employed by a CREWES
% Project sponsor. By using this software, you are agreeing to the terms
% detailed in this software's Matlab source file.
 
% BEGIN TERMS OF USE LICENSE
%
% This SOFTWARE is maintained by the CREWES Project at the Department
% of Geology and Geophysics of the University of Calgary, Calgary,
% Alberta, Canada.  The copyright and ownership is jointly held by 
% its author (identified above) and the CREWES Project.  The CREWES 
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% The term 'SOFTWARE' refers to the Matlab source code, translations to
% any other computer language, or object code
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% Terms of use of this SOFTWARE
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% 1) Use of this SOFTWARE by any for-profit commercial organization is
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%force column vectors
vave=vave(:);
t=t(:);

vint=zeros(size(vave));
nt=length(t);
i1=1:nt-1;i2=2:nt;
vint(i1)= (vave(i2).*(t(i2)-t(1))-vave(i1).*(t(i1)-t(1)))./(t(i2)-t(i1));
vint(nt)=vint(nt-1);