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50.597  Articles
1 of 5.061 pages  |  10  records  |  more records»
Perturbative guidance techniques are aimed at driving a space vehicle along a prescribed, nominal path, leading to fulllling the boundary conditions associated with the mission specications. This work describes and applies the recently introduced, general... see more

Lagrange problem with the account of functional limitation at any functional limitations atany moment in a given interval is presented. The required conditions for optimal trajectories of thedeterminated dynamic system synthesized as space vehicle traject... see more

A challenging aspect regarding proximity operations such as on-orbit servicing, refuelling and dismissal is the selection of optimal trajectories. The path should be conveniently followed by making use of sensors and actuators available on-board Optical h... see more

The theorem of mirror trajectories, proven almost six decades ago by Miele, states that for a given path in the restrictedproblem of three bodies (with primaries in mutual circular orbits) there exists a mirror trajectory (in two dimensions) andthree mirr... see more

The paper considers the application of the wave method to search for the optimal UAV flight trajectories in a three-dimensional space concerning observation over the border sector. An appropriate efficiency indicator has been used in the process of constr... see more

The problem of optimal reorientation of the spacecraft orbit is considered in quaternion formulation. Control (acceleration from jet thrust vector orthogonal to the plane of the orbit) is limited in magnitude. It is necessary to minimize the energy costs ... see more

Due to the advantages of zero-voltage-switching (ZVS) and zero-current-switching (ZCS), LCLC resonant converters are universally applied in two-stage electronic power conditioners (EPCs) of space travelling-wave tube amplifiers (TWTAs). In two-stage EPCs,... see more

We find an asymptotically optimal method of recovery of the weighted integral for the classes of multivariate functions that are defined via restrictions on their (distributional) gradient.

This paper discusses the production of space inside everyday using the narrative lens in architecture. The narrative in everyday is referred to as spatial trajectories. The study explores the spatial trajectories by analysing the story from a novel in ord... see more

1 of 5.061 pages  |  10  records  |  more records»