Dimension reduction techniques for Bayes Doppler shift estimations in in telecommunication channels
Radio engineering. Electronics. Telecommunication systems
Аuthors
Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia
e-mail: lvv@mai.ru
Abstract
Abstract—The subspace-based technique is used for Doppler shift estimations of a signal of the known waveform. The tool to find required subspaces is the special orthogonal decomposition of received data. It allows concentrate Fisher information about desired parameter in a small number of the first terms of the decomposition. This approach gives the low-dimensional vector of sufficient statistics. It leads to computationally efficient Bayes estimation.Keywords:
fisher’s information; Doppler shift estimation; Cramer-Rao bound; dimension reduction.Download