Abstract
A differential pulse code modulation (DPCM) system provides a fast and inexpensive data compression technique for analog signals. Two methods of improving the performance of DPCM systems are studied: the introduction of delays using incremental tree coding techniques and the design of nonuniform quantizers based upon optimization theory. The performance of matched integrator, perfect integrator, and optimization-based DPCM systems are compared for first order Gauss-Markov sources and mean square error using simulation techniques. Both methods improve system performance. The optimization based DPCM system provides substantial improvement for high bit rates. >
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