Download or read book Analysis and Comparison of Delta Modulation as a Method of Pulse Modulation written by James A. Cadzow and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Deterministic Comparison Between Pulse Position Modulation and Delta Modulation written by James Walter Klapheke and published by . This book was released on 1964 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Sigma delta Modulation with Pulse Code Modulation as Applied to the Electrocardiogram written by Hariharan Thiagarajan and published by . This book was released on 1996 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pulse Code Modulation Techniques written by Bill Waggener and published by Springer Science & Business Media. This book was released on 1995 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulse Code Modulation Techniques brings together the theory and practice of PCM at the physical layer, where the "bits meet the silicon", so to speak. The key topics of symbol encoding, detection and synchronization are discussed, in detail, both from a theoretical and a practical standpoint. Topics which have been largely absent in text books, such as multiplexing, formatting and format synchronization, are also considered. Although PCM evolved as a communication technology, it has become an important technology in data recording. In a sense, magnetic or optical media are just specialized communication media and the key technologies discussed in this book are just as important to recording applications as to communications. PCM codes used for magnetic recording applications are discussed along with traditional communication codes. The design, analysis and implementation of a PCM system requires knowledge of very specific techniques associated with detection, synchronization and coding. The techniques have evolved from both ad hoc methods and complex theory. One of the goals of this book is to bridge the gap between theory and practice in the key techniques. Matched filters are not only discussed theoretically, but means for implementing them are also considered. The same is true with symbol synchronization.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis Subjective Evaluation Optimization and Comparison of the Performance Capabilities of Pcm Dpcm Delta M Am and Pm Voice Communication Systems written by Robert W. Donaldson and published by . This book was released on 1968 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research was conducted in order to provide a partial answer to the question: 'Which of a set voice communication systems provides satisfactory performance for the least cost'. Since the ultimate measure of performance is the subjective quality of the received message, a subjective evaluation procedure was developed and used to subjectively evaluate, optimize, and compare the performance capabilities of pulse-code modulation (PCM), differential PCM (DPCM), deltamodulation (delta M), double- and single-sideband amplitude modulation (AM), and phase modulation (PM) systems. The results can also be used to evaluate pulse amplitude modulation systems. For each type of system a unique set of optimum parameters was obtained, and the maximum subjective quality was determined as a function of the characteristics of the transmission channel. For good channels, DPCM is superior to PCM, which in turn is superior to AM and PM. For lower quality channels, AM systems are sometimes best. Only for bit rates of less than 10 and 18 kbit/s, respectively, is delta M competitive with DPCM and PCM. (Author).
Download or read book Circuits and Systems Based on Delta Modulation written by Djuro G. Zrilic and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for students and professionals who are interested in the field of digital signal processing of delta-sigma modulated sequences. The overall focus is on the development of algorithms and circuits for linear, non-linear, and mixed mode processing of delta-sigma modulated pulse streams. The material presented here is directly relevant to applications in digital communication, DSP, instrumentation, and control.
Download or read book Oversampled Delta Sigma Modulators written by Mücahit Kozak and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oversampled Delta-Sigma Modulators: Analysis, Applications, and Novel Topologies presents theorems and their mathematical proofs for the exact analysis of the quantization noise in delta-sigma modulators. Extensive mathematical equations are included throughout the book to analyze both single-stage and multi-stage architectures. It has been proved that appropriately set initial conditions generate tone free output, provided that the modulator order is at least three. These results are applied to the design of a Fractional-N PLL frequency synthesizer to produce spurious free RF waveforms. Furthermore, the book also presents time-interleaved topologies to increase the conversion bandwidth of delta-sigma modulators. The topologies have been generalized for any interleaving number and modulator order. The book is full of design and analysis techniques and contains sufficient detail that enables readers with little background in the subject to easily follow the material in it.
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 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 A Study of Pulse Delta Modulation written by William Floyd Armstrong and published by . This book was released on 1954 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparison of Delta and Sigma Delta Modulation Using Simulink written by David Kapusta and published by . This book was released on 2007 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1970 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Electrical Drives written by H. Bülent Ertan and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrical drives lie at the heart of most industrial processes and make a major contribution to the comfort and high quality products we all take for granted. They provide the controller power needed at all levels, from megawatts in cement production to milliwatts in wrist watches. Other examples are legion, from the domestic kitchen to public utilities. The modern electrical drive is a complex item, comprising a controller, a static converter and an electrical motor. Some can be programmed by the user. Some can communicate with other drives. Semiconductor switches have improved, intelligent power modules have been introduced, all of which means that control techniques can be used now that were unimaginable a decade ago. Nor has the motor side stood still: high-energy permanent magnets, semiconductor switched reluctance motors, silicon micromotor technology, and soft magnetic materials produced by powder technology are all revolutionising the industry. But the electric drive is an enabling technology, so the revolution is rippling throughout the whole of industry.
Download or read book Delta Sigma Modulators written by George I. Bourdopoulos and published by Imperial College Press. This book was released on 2003 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book deals with the modeling and design of higher-order single-stage delta-sigma modulators. It provides an overview of the architectures, the quantizer models, the design techniques and the implementation issues encountered in the study of the delta-sigma modulators. A number of applications are discussed, with emphasis on use in the design of analog-to-digital converters and in frequency synthesis. The book is education- rather than research-oriented, containing numerical examples and unsolved problems. It is aimed at introducing the final-year undergraduate, the graduate student or the electronic engineer to this field. Contents: Analog to Digital Conversion; ou Modulators OCo Architectures; Single-Bit Single-Stage ou Modulators, Modeling and Design; Implementation of ou Modulators; Practical Limitations of ou Modulators; Stabilization and Suppression of Tones for the Higher-Order Single-Stage ou Modulators; Decimation, Interpolation and Converters; Applications. Readership: Final-year undergraduates; graduate students; electrical, electronic and systems engineers."
Download or read book A Comparison Between Single Integration and Companded Delta Modulation written by Donald W. Huth and published by . This book was released on 1969 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Pulse time Modulation with Amplitude and Freuency Modulation written by Jr. Lawrence Campbell Fuller and published by . This book was released on 1946 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
