Scientech TechBooks are compact and user friendly learning platforms to provide a modern, portable, comprehensive and practical way to learn Technology. Each TechBook is provided with detailed Multimedia learning material which covers basic theory, step by step procedure to conduct the experiment and other useful information.
TDM Pulse code Modulation/Receiver TechBook Scientech 2154 demonstrates Pulse Code Demodulation Technique which is the most widely used digital demodulation system. Since analog modulation system is most prone to noise present in the channel and receiver, the digital modulation system is used because it is less sensitive to noise. The basis of digital modulation systems lies on pulse code modulation i.e. a particular characteristic of the pulse is varied in accordance with the information signal. In PCM system the amplitude of the sampled waveform at definite time intervals is represented as a binary code.
Input accepts two channel multiplexed data
On board De-multiplexed PCM Receiver
On board Low pass filters
Fast & Slow modes for real time operation and data flow examination
On board PLL for clock regeneration
On board sync code detector
Error check code options
Odd or Even Parity-Single bit error detection
Hamming code single bit error detection and correction
Switched faults allow different error check code option