A CORRELATION COEFFICIENT FOR MODAL VECTOR ANALYSIS

摘要

Multiple, independent modal vector estimates may be generated whenever multiple rows or columns of the frequency response function matrix are available. These independent estimates of the same modal vector need to be processed into a single best estimate of that particular modal vector. The development of the concept of consistency of modal vectors, evaluated through the use of the modal assurance and modal scale factor, is useful in computing a best estimate of the modal vector and useful in understanding the errors among separate estimates of the same modal vector.