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Keywords = Pulse-Width Pulse-Frequency Modulator

Number of Articles: 2
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
Static Analysis of Pulse-Width Pulse-Frequency Modulator Based on Analytical and Numerical Solutions

S.Hamid Jalali-Naini

Volume 11, Issue 1 , June 2018, , Pages 13-29

Abstract
  In this study, the preferred regions of Pulse-Width Pulse-Frequency Modulator (PWPFM) are obtained analytically for the static analysis. For this purpose, a comprehensive parametric study is carried out based on the two performance indices of fuel consumption and the number of thruster firings. The preferred ...  Read More