CS ADC Notes Analog and Digital Communication Lecture Notes – CSE 3rd SEM Anna UniversityComplete Notes. Analog communication, noise, effects of noise on a signal, types of signal, correlated and un-correlated, types of uncorrelated noise, external noise and internal noise, atmospheric noise, extraterrestrial noise, solar noise, man made noise, internal noise, transist time noise, thermal noise, fliker noise, partion noise, burst noise, noise calculation, modulation, types of modulaton, need for modulation, basic need for modulation, practicability of antena, to remove interference, reduction of noise, multiplexing. Digital communication, need of digital modulation, advantages of digital communication, disadvantages of digital communication, basic encoding techniques or digital modulation techniques, amplitude shift keying, coherent ask detector, non coherent ask detector, frequency shift key or binary ASK, FSK transmitter or modulator, fsk modulated wave, fsk in the time domain, fsk receiver or detector, non coherent fsk demodulation, fsk bit rate, band and bandwidth, applications of digital modulation, binary phase shift keying, BPSK transmitter, operation, bpsk modulated waveform and phasor diagram. Data and pulse communication, use of data communication network, history of data communication, standard organisation for data communication, some of the standard organisation of data communication are as, internal standard organization, consultative commute for international telephony and telegraphy, institute of electrical and electronics engineers, american national standard institute, electronics industry association, internet architecture board. Huffman coding, Input, Output.
This equation shows that the i th analov transmitted is correctly reproduced. Source Encoder and Decoder: The symbol produced by information source are given to source encoder. This block also consists of an analog to digital converter where a digital signal is needed for further processes. For the signals to get digitized, we have the sampling and quantizing techniques.This process of coding is chosen so as to avoid overlap and distortion of signal such as inter-symbol interference! The rate at which data can be communicated is called the data rate. Description: All Topics with neat figure Diagram and Explanation? Hence, it is nothing but digital modulation.
The notes available as online study material and Download as pdf format. Amplitude modulation is used in computer modems, and in portable two-way radio. This residual effect is called as Inter Symbol Interference. The signals modulated with these techniques are hard to interfere and cannot be jammed.
Communication is the basic attraction of mankind as it gives the knowledge of what is going on around us. In our daily life, we communicate with many people and use the entertainment media like television, radio, internet and newspaper to get ourselves involved. These entertainment media act as a source of communication.
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Analog and Digital Communication Notes ADC
Noise - Analog Communication - Answer click here 2. External Noise, Internal Noise - Answer click here 3. Introduction to Communication System - Answer click here 4. Modulation, Types, Need for Modulation - Answer click here 5. Theory of Amplitude Modulation - Answer click here 6.
For digital pff and systems, over a shared medium. The Asynchronous ASK detector consists of a half-wave rectifier, see Digital data, and a comparator. The source decoder recreates the source output. Multiplexing is the process of combining multiple signals into one signal.
Previous Page. While using the hamming codes, high data security. In analog modulation, analog signal sinusoidal signal is used as a communicstion signal that modulates the message signal or data signal. Digital Modulation provides more information capaci.It designates each quantized level by a binary code. The second term represents the residual effect of all other transmitted bits on the decoding of the i th bit. Theory of Amplitude Modulation - Answer click here 6. After going through different types of coding techniques, we have an idea on how the data is prone to distortion and how the measures are taken to communiication it from getting affected so as to establish a reliable communication?
The two signals have a minimum frequency separation? Digital anallg having more than two states are occasionally used; circuitry using such signals is called multivalued logic. The main methods of FSK detection are asynchronous detector and synchronous detector. Categories : Telecommunications.