Continuous Variable Slope Delta Modulation

Adaptive Delta Modulation

Continuous Variable Slope Delta Modulation was first proposed by Greefkes and Riemes in 1970. CVSD requires a 1-bit sample length compared to the 8 bits used in PCM, so more samples can be sent in the same bandwidth. As a result, CVSD is more tolerant of communications errors. Because of its error tolerance, CVSD performs well in noisy channels, and for this reason, it has been widely used in military communications systems.The ability to tolerate errors is also what makes CVSD attractive for...