A Study Of Statistical Data Adjustment And Logic Techniques As Applied To The Interplanetary Mid Course Guidance Problem

A Study of Statistical Data-adjustment and Logic Techniques as Applied to the Interplanetary Mid-course Guidance Problem

A statistical analysis and evaluation of the effect of data-adjustment and decision techniques on the efficiency of midcourse guidance maneuvers are presented. A potentially self-contained optical navigation scheme is hypothesized, and all random measurement errors are considered specified by Gaussian distributions. The basic guidance equations are developed using linear perturbations methods. The nature of data-adjustment procedure is that the accuracy of terminal prediction improves successively from one guidance point to the next. Guidance logic, based on dead-band and damping decision expressions, further reduces the velocity-increment cost and number of corrections required.

A Study of Statistical Data-adjustment and Logic Techniques as Applied to the Interplanetary Mid-course Guidance Problem

NASA Technical Note