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The gravity model of WGS84 is commonly used in the calculation of gravitational acceleration known as normal gravity vector, but it cannot meet the requirements for high-precision inertial navigation systems because of the gravity anomaly. In this paper, the effects of gravity vertical deviation on navigation accuracy are analyzed and the principle of compensation is studied based on vertical deviation...
We consider the problem on synthesis of the guidance laws and algorithms for digital attitude control for an observation spacecraft at areal land surveying. The land surveying is carried out by a set of extended orthodromic routes of scanning optoelectronic observation for a given part of the Earth surface. We present results on the efficiency of the developed vector spline guidance laws, algorithms...
In this article the study of the multifrequency generation regime in a laser gyroscope was undertaken. The study is performed on a laser gyroscope with a broadband solid-state wide-range active medium YAG:Cr4+ and a gyroscope on a semiconductor optical amplifier and with a fiber-optic cavity. Mode-locking was used in order to improve stability and reduce noise. Using Lamb theory-based equations, a...