大地电磁响应函数的除偏估算和误差的研究

ON THE UNBIASED ESTIMATION AND ERROR RESEARCH OF MAGNETOTELLURIC RESPONSE FUNCTIONS

摘要:

本文利用实际大地电磁资料,探讨了大地电磁响应函数误差分布特征和估算过程中误差传播的某些特征,进一步阐述了经作者改进后的多道相关函数法在除偏和减少估算误差方面的实际使用效果,并就使用多参数进行误差综合评价方面的某些问题做了讨论。

Abstract:

In this paper some advance on the error research in magnetotelluric data process are reviewed. Using the measured MT data, we discuss characters of the error distribution of MT response functions and the characters of the error propagation in its estimation; further expound the practically applied effect of the multi-channel coherent function method, modified by author, on the unbiased estimation and the diminution of the errors of the estimated values; and also discuss some problems on the synthetical error evaluation using several MT parameters.