Zubov

pp. 81-105

pp. 69-80

The article presents a developed laser rangefinder-speedometer (LRS) to replace the hand-held laser rangefinders on board transport spacecraft. Using the generalized function of efficiency, the LRFSM characteristics were estimated to show that the LRS has the highest efficiency as compared with existing analogues. As a result of relationship analysis of measuring speed accuracy and reliability of LRS laser source, Pareto sets are obtained, which enable providing the optimal operation conditions of a device. Energy calculations are performed for 5 km range measurements on space complex with a complicated configuration such as the International Space Station. The article considers the use of a geometric factor to protect a photo-detector from the overload when receiving a signal from the nearby angular reflector. The paper presents the results of efficiency evaluation using a generalized function for different types of laser sources that can be used in the LRS.

The purpose of this paper is to analyze possibilities and select laser sources for onboard laser ranging systems (LLS) of space vehicles designed to locate by a diffusely reflected signal and corner reflectors (CR). Characteristics of semiconductor, solid-state and fiber lasers were presented. Energy evaluation of range capability of onboard LLS in pulsed and continuous radiation modes using lasers of different types was conducted.  It was shown that increase in range capability of onboard LLS by a diffusely reflected signal up to 10 km was provided with the use of fiber lasers, and for the range capability of more than 10 km usage of solid-state lasers was required. Influence of corner reflector parameters on the range capability of LLS was estimated. The obtained results could be used in development of onboard LSS for innovative space vehicles.