In this paper we present an experimental analysis of several modulation formats (pulse amplitude (PAM-2), quaternary pulse (PAM-4) and electrical duobinary (EDB)) for passive optical network (PON) applications at 25 Gbps bit rate in a C-band 10G-class directly modulated lasers (DML) avalanche photodiode (APD) intensity direct detection (IM-DD) system over single mode fiber (SMF) up to km, optim...

Usage of the benefits of electrical communication has become an inseparable part of our lives now. Through this paper, I have tried to summarize various technologies that are important in the field of digital communication and have also included the recent advancements in the same field. The paper starts with the basic idea about the communication system followed by basic modulation techniques ...

This paper proposes an M-ary amplitude shift keying (MASK) power and information synchronous transmission system based on phase-shifted full-bridge (PSFB) for applications in wireless (WPT). The Pulse Width Modulation (PWM) waveform uses different phases to control the MOSFET inverter MASK modulation. voltage generates M transformation, forming a comprehensive flow. demodulation circuit process...

in this study, a new adaptive controller is proposed for position control of pneumatic systems. difficulties associated with the mathematical model of the system in addition to the instability caused by pulse width modulation (pwm) in the learning-based controllers using gradient descent, motivate the development of a new approach for pwm pneumatics. in this study, two modified feedback error l...

In the modern electromagnetic environment, intra-pulse modulations of radar emitter signals have become more complex. Except for single-component signals, dual-component been widely used in current systems. order to make system ability classify and modulation at same period time accurately, this paper, we propose a multi-label learning method based on convolutional neural network transformer. F...

The ever-expanding growth of the electronics and communications industries present new challenges for researchers. One these is generation required bandwidth signal over a specific time frame that used in variety contexts, particularly radar systems. To improve range resolution along with better SNR, it necessary to reduce increase peak power. There are some restrictions narrowband signals like...

in this paper, we investigate the parameters affecting total harmonic distortion (thd) and power supply rejection ratio (psrr) in pwm class d amplifiers (cdas) on the basis of linear models with feedback. from our mathematical analysis, we show that the thd of a pwm class d amplifier with feedback can be improved by increasing the gain of the integrator through adding another amplifier at the o...