| Simultaneous inversion of velocity distribution and interface positions |
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| 作者姓名： | 李松林 吴宁远 宋占隆 石金虎 张先康 杨健 宋建立 |
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| 作者单位： | 宋建立)1) Research Center of Exploration Geophysics，State Seismological Bureau，Zhengzhou 450003，China 2) St |
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| 摘 要： | Ｓｉｍｕｌｔａｎｅｏｕｓｉｎｖｅｒｓｉｏｎｏｆｖｅｌｏｃｉｔｙｄｉｓｔｒｉｂｕ┐ｔｉｏｎａｎｄｉｎｔｅｒｆａｃｅｐｏｓｉｔｉｏｎｓＳＯＮＧ－ＬＩＮＬＩ１）（李松林）ＮＩＮＧ－ＹＵＡＮＷＵ２）（吴宁远）ＺＨＡＮ－ＬＯＮＧＳＯＮＧ１）（宋占隆）ＪＩＮ－...
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| 收稿时间： | 21 March 1996 |
| 修稿时间： | 11 November 1997 |
Simultaneous inversion of velocity distribution and interface positions |
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| SONG LIN LI,NING YUAN WU,ZHAN LONG SONG,JIN HU SHI,XIAN KANG ZHANG,JIAN YANG,JIAN LI SONG.Simultaneous inversion of velocity distribution and interface positions[J].Acta Seismologica Sinica(English Edition),1997,10(4):477-487. |
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| Authors: | SONG LIN LI NING YUAN WU ZHAN LONG SONG JIN HU SHI XIAN KANG ZHANG JIAN YANG JIAN LI SONG |
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| Institution: | (1) Research Center of Exploration Geophysics, State Seismological Bureau, 450003 Zheng zhou, China;(2) State Seismological Bureau, 100036 Beijing, China |
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| Abstract: | This paper deals with the simultaneous inversion of velocity distribution and interface positions in a laterally heterogeneous medium using seismic travel time data. Due to the application of variable step length and linear interpolation techniques (for both theoretical travel times and the partial derivative matrix), the computing speed is increased greatly. As compared with other domestic computing programs of this kind, it is five times or more faster than others. Besides reflected waves, the transmitted waves can also be used to form the partial derivative matrix of travel times with respect to interface positions. So this method can make full use of the information about interface positions contained in various transmitted waves and speed up the convergence rate. Digital tests and processing results of real data indicate the feasibility and effectiveness of the method and its program. |
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| Keywords: | inversion transmitted waves variable step length technique linear interpolation technique |
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