Search results
Modulation and Demodulation. Introduction. A communication system that sends information between two locations consists of a transmitter, channel, and receiver as illustrated in Figure 1. The channel refers to the physical medium carrying the information signal (voice, video, data etc.) from one location to another.
Oct 31, 2023 · This paper presents an approach to evaluate communication technologies for industrial control systems during the system engineering phase, considering future application conditions.
Modulation is a technique that changes the characteristics of the carrier frequency in accordance with the input signal. Figure 1.1 shows the conceptual block diagram of a modern wireless communication system, where the modulation block is shown in the inset of the dotted block. As shown in the figure, modulation is performed at the
- Saleh Faruque
- 2017
This textbook presents the fundamental concepts underlying the design of modern digital communication systems, which include the wireline, wire-less, and storage systems that pervade our everyday lives.
- 171KB
- 17
Aug 3, 2018 · This chapter discusses common types of modulation and their variants. It explores the spectral effects of modulation and explains why certain types of modulation are used in differing situations. The chapter also explains, using mathematical notation, the operation of modulators and demodulators.
overs all of the essential concepts needed to understand modern communications systems. Balancing theory with practical implementation, it presents key ideas as a chain of functions for a transmitter and receiver, covering topics such as amplification, up-and down-conversion, modulation, dispersive channel compensation, error correct-ing codes, ...
People also ask
Why do we need a comprehensive understanding of modulation techniques?
What is the difference between digital modulation and decoding?
What is modulation in a communication channel?
Why is modulation important in Communication Technology?
How does modulation work?
Where is modulation performed in a radio communication system?
Digital modulation (or channel encoding) is the process of converting an input sequence of bits into a waveform suitable for transmission over a communication channel. Demodulation (channel decoding) is the corresponding process at the receiver of converting the received waveform into a (perhaps noisy) replica of the input bit sequence.
