Multi level Digital Modulation
Multi-level digital modulation schemes are used to increase bit rate in data communications. Ordinary modulation techniques such as ASK, FSK
Read moreDay: August 15, 2018
Phase Shift Keying | PSK
Computer data is binary in nature and consists of sequence of 1s and 0s. Telephone lines are analog in nature
Read moreFrequency Shift Keying | FSK
FSK (Frequency Shift Keying) Computer data is binary in nature and consists of sequence of 1s and 0s. Telephone lines
Read moreAmplitude Shift Keying | ASK
ASK (Amplitude Shift Keying) ASK is also known as 2-level ASK, because number of amplitude changes = 2. Other names
Read moreMODEM in digital communications
MODEM MODEM is cobination of modulator and demodulator. Computer data is binary in nature and consists of sequence of 1s
Read moreDelta Modulation in communicaion
Delta Modulation Delta Modulation (DM) is another method to convert analog signal into digital and uses single bit to achieve
Read moreDPCM | Differential PCM
DPCM (Differential PCM) DPCM is designed specifically to take advantage of the sample-to-sample redundancies in typical speech waveforms. Note that
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