The main purpose of this paper is analyzing base band processes, HF modulator and SSB demodulator by the TMS320C50 processor. In this respect, the importance of the processor, its place and its ...

Abstract: A new algorithm is proposed for the digital implementation of the M -channel SSB-frequency-division multiplexing (FDM) modulator and demodulator, which is computationally attractive and ...

This project simulates a block diagram of a digital communications system using MATLAB. The key steps include modulating a speech signal, applying various analog modulation techniques, passing the ...

PCB Design The PCB design includes: Modulator Block: Accepts carrier and message signals. Outputs an AM signal with adjustable modulation index. Demodulator Block: Accepts the modulated AM signal.

Q 1 to Q 4 and Q 5 to Q 8 function as balanced mixers. They provide a high dynamic range for the circuit, which is part of a direct-conversion receiver. IC 1 provides two, quadrature LO signals, and ...