Space subsystems design: (navigation, control, structure and…)
A Modification to Integral Pulse-Width Pulse-Frequency Modulator

S. Hamid Jalali-Naini; omid Omidi Hemmat

Volume 14, Issue 1 , March 2021, , Pages 55-64

Abstract
  This paper presents a modification to a type of Pulse-width Pulse-Frequency (PWPF) Modulator utilized an integrator block. In this modulator that called here as "Integral Pulse-Width Pulse-Frequency (IPWPF)," an integrator is used instead of the first-order low-pass filter. To improve the performance ...  Read More

Investigation in to The Effect of Kinematic of The Space Craft Attitude Control Using Feedback Linearization Method

M. Navabi; M.R. Hosseini

Volume 11, Issue 1 , June 2018, , Pages 59-71

Abstract
  Using nonlinear control theories is common for the attitude control problem of spacecraft.Feedback linearization theory is a nonlinear control method which tries to transform nonlinear dynamics of system into linear.In this control theory, outputs choice will have a direct impact on the stability ...  Read More