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<TITLE>/</TITLE><BODY><A HREF = "../index.html">[Master Index]</A><A HREF = "index.html">[Index for ./main]</A><H1>corrot</H1><H2>(./main/corrot.m)</H2><HR><H3>Function Synopsis</H3><pre>[dataout]=corrot(datain,headw1,tint,comp1,comp2)</pre><HR><H3>Help text</H3><pre>corrot -> function to rotate components of 3-C borehole data (DSI etc.)into radial and transverse components using matrix eigenvalue algorithm.function [dataout]=corrot(datain,headw1,tint,comp1,comp2)INPUT VARIABLES'datain' must be in official DSI data formatEach record must represent a component h1, h2, or z.This can be achieved using '<A HREF = "../8.main/sortrec.html">sortrec</A>'.headw1 = header word containing first break pickstint = half width of time window to use around first breaks (s)comp1 = record representing one of the components to be rotatedcomp2 = record number of other component to be rotatedOUTPUT VARIABLESTrace header word 4 contains component information.This word will be incremented by 3 for components that havebeen rotated.By convention: h1=>1; h2=>2; z=>3; radial or oriented horizontal=>4;transverse horizontal=>5; direct P-arrival (Pd)=>6; orthoganalcomponent to Pd=>7 (see Handbook of Geophysical Exploration, sect.1,vol.14B). Components 6 and 7 are the results of rotating 3 and 4; 4 and 5 arethe results of rotating 1 and 2.The largest singular value of the covarience matrix is stored in headerword 10, and the ratio of sigular value 2 to singular value 1 is stored in word 11.DSI customized VSP processing softwareby I. Kay and G. Perron (Jan 1998)</pre><HR>Produced by <A HREF = "http://www.nd.edu/Courses/kantor/matlab/mat2html">mat2html</A> on Wed Jun 14 15:21:32 Canada/Eastern 2000<BR>Cross-Directory links are: ON<BR></BODY>⌨️ 快捷键说明
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