Modern aircraft and missiles are gradually integrating thrust vector control systems to enhance their military capabilities. Bypass Dual-Throat Nozzle (BDTN) is a new fluidic vectoring technique capable of achieving superior performance with large angles low loss. In this study, we analyzed the flow characteristics parameters BDTN by varying bypass angle, nozzle convergence width. The governing...

The purpose of this paper is to analyze the flow field structure in transient state and performance of secondary injection system for thrust vectoring in divergent section of a two-dimensional nozzle. Secondary injection for thrust vectoring in a two-dimensional nozzle is studied by solving three-dimensional Reynolds-averaged equations by means of fluent solver. Spalart-allmaras model was used ...

FTV (free-viewpoint television) is an innovative visual media that allows users to view a three-dimensional (3D) scene by freely changing their viewpoints. Thus, it enables realistic viewing and free navigation of 3D scenes. FTV is the ultimate 3DTV with infinite number of views and ranked at the top of visual media. FTV is not a conventional pixel-based system but a ray-based system. New types...

This paper describes a system for relative navigation and automated proximity operations for a microsatellite using continuous thrust propulsion and low-cost visible and infrared imagers. Image processing algorithms provide range, range rate, and spherical angle estimates relative to a target spacecraft using knowledge of the target spacecraft’s geometry. A differential correction batch filter ...

OBJECTIVES The present study was conducted to compare the accuracy of formulas used to calculate fetal thigh volume (FTV) using the virtual organ computer-aided analysis (VOCAL) technique with two-dimensional (2D) in formulas predicting birth weight. MATERIALS AND METHODS This was a prospective, cross-sectional study of 84 pregnant women with 72 hours of delivery evaluated at a university hos...

Abstract This paper addresses the development of an attitude determination and control system (ADCS) for a sounding rocket using thrust vector (TVC). To design ADCS, non-linear 6 degrees-of-freedom (DoF) model dynamics kinematics is deduced implemented in simulation environment. An optimal controller designed linear quadratic regulator (LQR) with additional integral action (LQI), relying on der...

This paper introduces a control scheme to vector thrust in marine cycloidal propellers with non-zero forward speed, despite the presence of measurement noise and current-like disturbances. Cycloidal utilize 360° thrust-vectoring provide agile maneuvering surface vessels like tugboats double ended ferries, but have yet be utilized present-day unmanned autonomous vehicles. work strategizes low-le...