Static and Dynamic Analyses of Integral Pulse-Width Pulse-Frequency Modulator with Small Error-Reset Integrator Logical Circuit

S.H. Jalali Naini; omid omidi hemmat

Volume 15, Issue 1 , June 2022

http://dx.doi.org/10.22034/jast.2022.328332.1114

Abstract
  In this study, the static and dynamic analyses of a modified integral pulse-width pulse-frequency (PWPF) modulator with small error-reset integrator (SE-RI) logical circuit are carried out using grid search method. A set of quasi-normalized equations is utilized in order to reduce the number of parameters, ...  Read More

Preliminary Design of Spacecraft Attitude Control with Pulse-Width Pulse-Frequency Modulator for Rest-to-Rest Maneuvers

S.Hamid Jalali -Naini; Sh. Ahmadi Darani

Volume 11, Issue 1 , June 2017

Abstract
  In this paper, the preferred region of design parameters for quasi-normalized equations of single-axis attitude control of rigid spacecraft using pulse-width pulse-frequency modulator (PWPFM) is presented for rest-to-rest maneuvers. Using the quasi-normalized equations for attitude control reduces the ...  Read More