新型微动台阵的设计和实验

摘要

提出一种新型微动台阵的结构,除传统常用的微动台阵的优点外,还具有在两组台间距上计算的空间自相关系数消去了6阶贝塞尔函数误差项的改进特点,从而拓宽了可用频率的范围,在一定程度上可以减小干扰源的影响.仿真和场地实验证实了其有效性.%A new type of microtremor array is presented. Besides the advantages of traditional ones, it is improved by canceling the error item of 6th order Bessel function from space autocorrelation coefficient computed from the site-between distance of two groups and thus broadens usable frequency band and to some extents diminishes the influence from disturbance. The principle of design is introduced and effectiveness of the results is validated through simulation and field test.