mix.m,v

具有特色的地震数据处理源码

head	3.0;
access;
symbols;
locks; strict;
comment	@// @;


3.0
date	2000.06.13.19.20.50;	author gilles;	state Exp;
branches;
next	2.0;

2.0
date	99.05.21.18.46.02;	author mah;	state Exp;
branches;
next	1.2;

1.2
date	99.05.17.17.15.02;	author mah;	state Exp;
branches;
next	1.1;

1.1
date	99.01.06.19.09.06;	author kay;	state Exp;
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next	;


desc
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3.0
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@Release 3
@
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@function [dataout]=mix(datain,weights)

%function [dataout]=mix(datain,weights)
%
%lateral trace mixing with user specified weights
%similar to INSIGHT module 'mix'
%
%datain - is in official DSI format
%weights - is a vector of weight factors for the mix.  ex. [0.12,0.76,0.12]
%is a typical triangle weighted mix.  elements of 'weight' should add up to 1
%length of weights or number of weights must be an odd number
%
%DSI customized VSP processing software
%written by Kristen Beaty November, 1997

%$Id: mix.m,v 2.0 1999/05/21 18:46:02 mah Exp gilles $
%$Log: mix.m,v $
%Revision 2.0  1999/05/21 18:46:02  mah
%Release 2
%
%Revision 1.2  1999/05/17 17:15:02  mah
%fixed help message
%
%Revision 1.1  1999/01/06 19:09:06  kay
%Initial revision
%
%
%Copyright (C) 1998 Seismology and Electromagnetic Section/
%Continental Geosciences Division/Geological Survey of Canada
%
%This library is free software; you can redistribute it and/or
%modify it under the terms of the GNU Library General Public
%License as published by the Free Software Foundation; either
%version 2 of the License, or (at your option) any later version.
%
%This library is distributed in the hope that it will be useful,
%but WITHOUT ANY WARRANTY; without even the implied warranty of
%MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
%Library General Public License for more details.
%
%You should have received a copy of the GNU Library General Public
%License along with this library; if not, write to the
%Free Software Foundation, Inc., 59 Temple Place - Suite 330,
%Boston, MA  02111-1307, USA.
%
%DSI Consortium
%Continental Geosciences Division
%Geological Survey of Canada
%615 Booth St.
%Ottawa, Ontario
%K1A 0E9
%
%email: dsi@@cg.nrcan.gc.ca

disp('[dataout]=mix(datain,weights)');
dataout=datain;
buff=(length(weights)-1)/2;
nrec=datain.fh{12};
npts=datain.fh{7};

for COUNT=1:nrec %loop over records
 ntpr=datain.th{COUNT}(12,1); %get number of traces in this record
 for i=1+buff:ntpr-buff
  dataout.dat{COUNT}(:,i)=0;
  n=1;
  for k=i-buff:i+buff
   dataout.dat{COUNT}(:,i)=dataout.dat{COUNT}(:,i)+datain.dat{COUNT}(:,k).*weights(n);
   n=n+1;
  end %for k=i-buff:i+buff
 end %loop over mixable traces
end %loop over records
@


2.0
log
@Release 2
@
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@d16 1
a16 1
%$Id: mix.m,v 1.2 1999/05/17 17:15:02 mah Exp mah $
d18 3
@


1.2
log
@fixed help message
@
text
@d16 1
a16 1
%$Id: mix.m,v 1.1 1999/01/06 19:09:06 kay Exp mah $
d18 3
@


1.1
log
@Initial revision
@
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@d11 1
a11 1
%length of weights must be an odd number
d16 5
a20 2
%$Id:$
%$Log:$
@