Design of a Kalman Derived, Fixed Gain, Hybrid Navigation System

摘要

At present, there exists a major effort to develop cost-effective navigation systems for applications to U. S. Army aircraft. Major factors involved in the design of one candidate for such an application (a LORAN/Inertial hybrid system) are discussed in this report. The design factors addressed include selection of a measurement processing technique to be used in conjunction with a Kalman filter algorithm, and the modification of this algorithm to provide Kalman derived, fixed feedback gains, free of geographic dependence. Relative performance of the fixed gain and Kalman systems is assessed through analysis of data from both Monte Carlo computer simulations and actual flight tests. (Author)