matlab地震数据处理程序

Matlab地震处理小程序。内部包含多个小程序，满足不同地震分析需要

% Log_examples1
%       Example of the usage of log-related functions 

clear all
presets
global S4M
S4M.interactive=0;	% Run without user intervention （turn-off some pop-up 
                        % windows requesting user intervention）

%	Create a synthetic log with a sonic made up from Gaussian noise;
depth=（5000:0.5:10000）‘;
nsamp=length（depth）;
dt=150+25*randn（nsamp1）;
wlog=l_convert（[depthdt]{‘depth‘‘ft‘‘Depth‘;‘DTp‘‘us/ft‘‘P-sonic‘}）;
wlog.name=‘Synthetic log‘;

%	Add Kelley bushing elevation as a parameter
wlog=add_parameter（wlog84{‘KBE‘‘ft‘‘Kelly bushing elevation‘}）;

%	Add a trend to the sonic log
wlog=l_curve_math（wlog‘replace‘‘dtp=dtp*（5000/depth）^0.333‘）;

%	Extract sonic curve from log
dtp=l_gc（wlog‘dtp‘）;

%	Use “dtp“ to add a curve with P-velocity （curve mnemonic ‘Vp‘）
wlog=l_curve（wlog‘add‘‘Vp‘1.0e6./dtp‘ft/s‘‘P-velocity‘）;

%	Use an alternative method to add a density curve computed 
%       via Gardner‘s formula
wlog=l_curve_math（wlog‘add_ne‘‘rho=0.23*vp^0.25‘‘g/cm3‘‘Density‘）;

%	Plot curves
l_plot（wlog）

%	Change the units of measurement from feet to meter
wlog=l_unit_conversion（wlog{‘ft‘‘m‘}）;

%	Change the units of measurement from feet/second to meters/second
%       and from microseconds/foot to microseconds/meter.
wlog=l_unit_conversion（wlog{‘ft/s‘‘m/s‘}{‘us/ft‘‘us/m‘}）;

%	Display summary information about the log curves
l_curve（wlog）


%	Compute density trend （requires the Optimization Toolbox）
if exist（‘fmincon‘） > 0
   [wlogaux]=l_regression（wlog‘rho=x1*depth^x2‘{‘lbounds‘00} ...
              {‘ubounds‘101}）;

%	Compare density with density trend
   l_plot1（wlog{‘curves‘‘rho‘‘rho_pred‘}）
end

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        291  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\abs.m

     文件        301  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\exp.m

     文件        305  2006-12-01 20:20  94254010S4M\S4M\Geophysics_2.01\@struct\imag.m

     文件        295  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\log.m

     文件       1370  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\minus.m

     文件        430  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\mrdivide.m

     文件       1631  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\mtimes.m

     文件       1389  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\plus.m

     文件        304  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\power.m

     文件       1429  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\rdivide.m

     文件        300  2006-12-01 20:20  94254010S4M\S4M\Geophysics_2.01\@struct\real.m

     文件        296  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\sign.m

     文件        293  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\sqrt.m

     文件       1529  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\times.m

     文件        289  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\uminus.m

     文件        275  2006-07-02 17:35  94254010S4M\S4M\Geophysics_2.01\@struct\uplus.m

     文件        964  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\add_curve_type.m

     文件        841  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\add_parameter.m

     文件        136  2005-12-26 22:27  94254010S4M\S4M\Geophysics_2.01\ddid.m

     文件        392  2007-07-25 13:32  94254010S4M\S4M\Geophysics_2.01\default_seismic_colormap.m

     文件       7690  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_append.m

     文件       4014  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_average.m

     文件       5723  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_check.m

     文件       4577  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_combine.m

     文件       4435  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_compare.m

     文件       3829  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_convert.m

     文件       4451  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_crossplot.m

     文件       8980  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_curve.m

     文件       4741  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_curve_math.m

     文件       1714  2006-12-01 19:57  94254010S4M\S4M\Geophysics_2.01\l_data.m

............此处省略299个文件信息