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Posted inAnalog & Digital Communication
Digital Communication – Error Control Coding
Noise or Error is the main problem in the signal, which disturbs the reliability of…
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Difference Between PAM, PWM and PPM
PAM, PWM and PPM all three are analog pulse modulation techniques. The major difference between…
Posted inAnalog & Digital Communication
Pulse Code Modulation
Modulation is the process of varying one or more parameters of a carrier signal in accordance…
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Pulse Amplitude Modulation
Today communication is the heart of the technology. Communication is achieved over a transmitter and a…
Posted inAnalog & Digital Communication
Entropy, Source Encoding Theorem
Source encoding theorem The discrete memory less source of entropy H(X), the average code word…
Posted inAnalog & Digital Communication
Pulse Communication
PAM Modulator The amplitude of a carrier pulse is altered in accordance to that of…
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Error Detection and Correction Techniques
Different Types Of Error Detection Techniques: a. Redundancy b. Echoplex c. Exact count encoding d. Parity e. Check sum f. Vertical…
Posted inAnalog & Digital Communication
Data Communication Circuits, Data Communication Codes
When the modulation index is less than 1, the angle modulated systems are called low…
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History of Data Communications
Though data communication may seem a relatively new innovation, the history of data connections dates…
Posted inAnalog & Digital Communication
Pulse Code Modulation
Modulation is the process of varying one or more parameters of a carrier signal in accordance…