Much current research focuses on developing discrete heterodyne receivers with quantum-noise-limited performance, which requires superconducting mixers to be cooled to around 4 K.

A monolithic heterodyne receiver for digital video broadcasting via-satellite (DVB-S) applications is presented. The integrated circuit consists of a down-converter block and a phase-locked-loop-based ...

This paper describes a crystal-less heterodyne phase-tracking receiver (PTRX) architecture that offers a wide tracking range, flexible yet robust loop dynamics, and a 1-bit demodulation output. Unlike ...

Discover the impact of weather conditions on FSO communication performance. Explore the transmission of 16PSK-OFDM optical signals under different weather conditions. Analyze optical spectral diagrams ...

Consider optical transmitters. From the viewpoint of semiconductor laser diodes, the GaAlAs material system can cover the wavelength range from 700 nm to 1 000 nm, while InGaAsP can cover 1 000 nm to ...

The purpose of this project is to simulate the basic components of an analog communication system using MATLAB programming. Specifically, an AM modulator and a corresponding super-heterodyne receiv ...