Modeling and Simulation of Digital Sensor in Seismic Ezploration Based on SIMULINK

摘要：

Seismic exploration imposes strict requirements on digital sensor such as large dynamic range and high linearity. Criterions for selecting mechanical parameters of digital sensor are presented for acceptable Brownian noise. System signal and noise transfer functions are then introduced based on high order S-A modulation. It is revealed that 5th order s-A modulation is required to suppress the quantization noise to negligible level. To point against the requirement to THD (total harmonic distortion),the formulas for THD calculation is derived,constraints to electronics parameters for THD that less than-lOOdB is calculated by these formulas. Modeling and simulation of the whole system are carried out,results are inspected and verified with theoretical analysis.

关键词： digital sensor 5th S-A modulation modeling SIMULINK.

作者: Yu Zhuan Wu Jie Wang YanFang

作者单位: Department of Modern Physics,University of Sci & Tech of China,230026,Hefei,China Key Laboratory of Technologies of Particle Detection & Electronics,Chinese Academy of Sciences Anhui Key Laboratory of Physical Electronics

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 1891-1894

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）