Estimation for Discrete-Time Directional Processes.
J.T. Lo, Linda R. Eshleman · Defense Technical Information Center (DTIC) · 1975
Error criteria, probability distributions, and optimal estimates on a sphere are discussed. Some properties of a special representation of a probability density on a sphere are studied. This representation has the desirable feature of being closed under the operation of taking conditional distributions. Facilitated with it, a finite-dimensional recursive scheme can be derived for a simple estimation model for directional processes.