Satellite attitude
Fractional order controller for satellite attitude stabilization based on magnetorquer.
... Different control approaches has been developed through the years and introduced in attitude control [5],[6],[7]. Different sensors and actuators has been also used, especially those of magnetic nature, because it ...
6
An efficient method to control the amplitude of the limit cycle in satellite attitude control system
... This paper presents a three step method to control the satellite attitude with a predetermined accuracy and minimum fuel consumption. In the first step, based on the control command and desired accuracy, an ...
15
Three-axis optimal control of satellite attitude based on Ponteryagin maximum principle
... e.g. attitude control in the desired direction, lunar soft landing, orbital transfer, ...satellite’s attitude variables ( including three variables of angular velocities and three variables of Euler angles ...
8
Enhancement of the Satellite Attitude Control Using Optimal Regulator Scheme
... the satellite in the desirable attitude is one of the real obsessions of scientist and control engineers because of existing of disturbances such as solar pressure (Bai and Wu, 2014), micrometeorites, ...
6
Design and Analysis of Gimbal Thruster Configurations for 3 Axis Satellite Attitude Control
... 9: Satellite attitude control system block ...the attitude of the satellite is accomplished by sending an attitude command signal from ground control on ...the attitude command ...
10
THE STRONG TRACKING AUGMENTED KALMAN FILTER FOR SATELLITE ATTITUDE DETERMINATION
... In this section, we describe numerical simulation used to verify the performance of the proposed attitude estimation algorithm based on strong tracking augmented unscented kalman filter (ST-AUKF). AUKF algorithm ...
10
Satellite Attitude Maneuver using Sliding Mode Control under Body Angular Velocity Constraints
... this, provides a recursive stabilization methodology [14]. Nadir-pointing control is achieved by a full-state feedback Linear Quadratic Regulator which drives the attitude quaternion and their respective rates of ...
6
Sensored Field Oriented Control of BLDC Motor for Pico Satellite Attitude Control
... Abstract:- A Field Oriented control scheme for a BLDC (Brush Less Direct Current) motor is presented. The mo- tor is used for attitude control of 3U sized Pico satellite by exchanging angular momentum with ...
5
Design and Implementation of a Sliding Mode Attitude Controller of a Satellite in Software in the Loop Test Bed
... of satellite, rotational motion of satellite, environmental disturbances and actuators and sensors dynamics 2) providing a graphical convenient user interface for monitoring system ...of satellite ...
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Attitude Control of Chaotic Satellite with Unknown Input and uncertainties based on Sliding Control
... The attitude control of missiles, spacecraft and satellites is essential; in order to remain them fixed in space to perform their missions ...The attitude equation of a satellite is a six- ...
5
Attitude Control of a Rigid Satellite Using Intelligent Change of Angular Momentum and Comparison with Classic Results Regarding to LQR
... able to do is the change of the satellite attitude or its body coordinates according to a reference one. This maneuver is possible by using the proper control torques and mechanism reaction wheels. This ...
6
Finite-time stabilization of satellite quaternion attitude
... satellite’s kinematic equations. These parameters are applied to overcome singularity problem in the numerical solution when performing the great maneuvers is required. Another important feature of the proposed control ...
10
Attitude Estimation of Nano-satellite according to Navigation Sensors using of Combination Method (TECHNICAL NOTE)
... outstanding satellite technology in astronautics field because of its light weight, short development cycle, low development cost, high functional density and flexible emission ...characteristics. Satellite ...
6
Micro-Satellite Configuration of Discoid and Asymmetrical, Gyroless with Thrusters Three-Axis Robust Control and Stability Analysis
... of satellite attitude control systems, and its performance and working stability influence the overall safety of satellite ...an attitude measurement component, it is extensively used in ...
17
De noising Spacecraft Attitude and Rate Data using DWT
... of satellite attitude and rate data using discrete wavelet transform is ...sensing satellite is to produce an ...The attitude quaternion and body rates are part of the down linked ...of ...
5
Nonlinear observers for attitude estimation in gyroless spacecraft via Extended Kalman filter algorithm
... the attitude of a spacecraft based on a sequence of noisy vector observations such as ...in satellite attitude estimation ...for attitude estimation for the Apollo space program in ...in ...
9
Design and Application of a Flexible Test System for Relay Communication Terminals
... simulated satellite forward signal to FPGA of the intermediate frequency signal processing unit through JTAG simulator, and sends the analog signals of carrier 20MHz and baseband bandwidth ...
5
Analysis and correction to the influence of satellite motion on the measurement of inter satellite two way clock offset
... between satellite A and B is unchanged in 1 μs among the measuring process of inter-satellite two-way clock offset and ignoring the equipment time delay and other time delay of satellite receiver and ...
7
Techinical Report.pdf
... In this study, we simply regard the satellite data as daily averaged without considering the measurement time of satellite formaldehyde. Formaldehyde was measured by satellite at dif[r] ...
30
ROCKET, SATELLITE, AND LAUNCHING OF SATELLITE
... rocket, satellite, and launching of satellites into the space, and satellite communication ...rocket, satellite and its applications are also presented in this ...A Satellite is an artificial ...
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