Download or read book Adaptive Delta Modulation with and Without Forgetting Factor written by Sandra Hala Dandach and published by . This book was released on 2005 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Linear and Adaptive Delta Modulation written by Rouben Zarrabi-Esshagh and published by . This book was released on 1982 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stabilized Adaptive Forgetting in Recursive Parameter Estimation written by J.T. Milek and published by vdf Hochschulverlag AG. This book was released on 1995 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Linear and Adaptive Delta Modulation written by John Edward Abate and published by . This book was released on 1967 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: New results are presented offering insight into the performance and optimization of linear and adaptive delta modulation, together with a comparison with pulse code modulation. The results are applied to three cases of practical importance: television, speech, and broad- band signals. The results presented can be grouped into the following three categories. First, a performance characterization of linear delta modulation (DM) is given. With the aid of certain empirical observations made from computer simulations, closed form expressions are found for granular noise, overload noise, and minimum quantization noise powers. These results per- mit the prediction of the optimum performance obtainable from DM at various bandwidth expansion factor values for many classes of signals. A defined quantity called the slope loading factor is usefully employed in the char- acterization of DM performance. It is shown that the slope loading factor is a normalizing variable when used to describe S/NQ performance. The optimum perform- ance of DM with signals such as television and speech having an integrated spectrum exceeds that with a broad- band signal having a uniform spectrum. It was also foundthat DM performance obtained with a Gaussian message signal amplitude probability density is essentially the same as that obtained with an exponential density. Second, the advantages to be gained when adaptive control is introduced into the DM system are investigated. If the message signal ensemble is nonstationary, a companding function is required. It is shown that this may be provided in a DM system by forcing the step size to respond adaptively to changes in the derivative of the input signal. Adaptive DM may take either a discrete or continuous form. It is shown that discrete adaptive DM does not sacrifice optimum linear DM performance to achieve companding, and further that large values of companding improvement are possible. Because of the nonstationary nature of television and speech signals, it is concluded that adaptive DM appears better suited than linear DM to such signals. Finally, linear DM is shown to be a special case of discrete adaptive DM. Third, the noise performance of PCM with Gaussian and exponential signal densities is presented together with a comparison between DM and PCM for television, speech, and broadband message signals. It is shown that the characteristic form of the performances of PCM and DM are similar when the independent variables are the amplitude loading factor and slope loading factor respectively. The effects of logarithmic companding and signal amplitude limiting on PCM performance are investigated. It has been found that adaptive DM appears capable of realizing a larger companding improvement than PCM, and that amplitude limiting in PCM is the counterpart of slope limiting in DM. For a television signal, it is concluded that DM provides a greater maximum S/NQ performance than PCM for values of the bandwidth expansion factor less than eight. For a speech signal, it is concluded that the performance of discrete adaptive DM with a bandwidth expansion factor value of four and a final gain factor value of only eight is approximately the same as that of companded PCM with a compression parameter value of one hundred. For a broadband signal, it is concluded that the performance of PCM is superior to that of DM. Finally, because of the complex nature of television and speech communication, it is concluded that subjective tests are needed before further conclusions regarding the performance advantages of discrete adaptive DM can be reached. For an abridgment of the material in this dissertation, the reader is referred to a paper of the same title, written by the author, appearing in the Proceedings of the IEEE, March, 1967.

Download or read book An Experimental Adaptive Delta Modulation System written by P. R. Aggarwal and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Delta Modulation written by M. Rasheed Pervez and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Adaptive Delta Modulation Scheme with Large Dynamic Range Analysis and Applications written by Michael J. O'Connor and published by . This book was released on 1975 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Delta Modulation written by Dimitrios Panos Prezas and published by . This book was released on 1978 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stability and Overshoot Suppression in Adaptive Delta Modulation written by Miguel Antonio Canas and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Delta Modulation written by Aliuddin Ahmad and published by . This book was released on 1982 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Experimental Linear and Adaptive Delta Modulation System written by Leroy William Osborn and published by . This book was released on 1969 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A New Adaptive Delta Modulation System written by Hyun-Jik Kim and published by . This book was released on 1975 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of an Adaptive Delta Modulation ADM Scheme with Wide Dynamic Range and Application as an ADM Linear Pulse Code Modulation Converter written by Cyril A. Claxton and published by . This book was released on 1979 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Instantaneous Value and Syllable Companed Adaptive Delta Modulation written by National Technical Information Service and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis and Design of a Broadband Adaptive Delta Modulation System written by Nicholaos C. David and published by . This book was released on 1978 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Variable Sampling Frequency Adaptive Delta Modulation System written by Pericles-Eleftherios Panos Prezas and published by . This book was released on 1979 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Arithmetic Processing and Digital Conversion of Adaptive Delta Modulation Encoded Signals written by Joseph Lawrence LoCicero and published by . This book was released on 1976 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: