Delta modulation
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Back to Top2013 9th International Conference on Information, Communications & Signal Processing (ICICS)
The conference provides an opportunity for researchers around the world to exchange ideas and latest research results in areas such as multimedia systems, information systems, signal processing, communications, networking and related fields.
2008 IEEE Power Electronics Specialists Conference  PESC 2008
Periodicals related to Delta modulation
Back to TopConsumer Electronics, IEEE Transactions on
The design and manufacture of consumer electronics products, components, and related activities, particularly those used for entertainment, leisure, and educational purposes
Display Technology, Journal of
This publication covers the theory, design, fabrication, manufacturing and application of information displays and aspects of display technology that emphasize the progress in device engineering, device design, materials, electronics, physics and reliabilityaspects of displays and the application of displays.
Electron Devices, IEEE Transactions on
Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solidstate devices, integrated electronic devices, energy sources, power devices, displays, sensors, electromechanical devices, quantum devices and electron tubes.
Industrial Electronics, IEEE Transactions on
Theory and applications of industrial electronics and control instrumentation science and engineering, including microprocessor control systems, highpower controls, process control, programmable controllers, numerical and program control systems, flow meters, and identification systems.
Industry Applications, IEEE Transactions on
The development and application of electric systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; the encouragement of energy conservation; the creation of voluntary engineering standards and recommended practices.
Xplore Articles related to Delta modulation
Back to TopAmit Phadikar; Santi P. Maity; Malay K. Kundu 2008 Sixth Indian Conference on Computer Vision, Graphics & Image Processing, 2008
This paper proposes a transform domain datahiding scheme for quality access control of images. The original image is decomposed into tiles by applying nlevel liftingbased discrete wavelet transformation (DWT). A binary watermark image (external information) is spatially dispersed using the sequence of number generated by a secret key. The encoded watermark bits are then embedded into all DWTcoefficients of nthlevel ...
Decimation filter design for RSFQ ΣΔ converter
M. Slimani; R. Guelaz; P. Desgreys; P. Loumeau 2009 Joint IEEE NorthEast Workshop on Circuits and Systems and TAISA Conference, 2009
In order to develop superconducting oversampled AD converter, based on a band pass sigma delta modulator, we study a sinc decimation filter using topdown method: Matlab simulations are performed to determine filter specifications, VHDL behavioral model of the complete architecture (sigma delta AD converter, I/Q mixer and low pass decimation filter) is realized to validate decimation filter performance and finally ...
Distributed algorithms for biobjective assignment problems
Chendong Li; Chulwoo Park; Krishna R. Pattipati; David L. Kleinman 2011 50th IEEE Conference on Decision and Control and European Control Conference, 2011
In this paper, we study the biobjective assignment problem, a NPhard version of the classical assignment problem. We employ an effective twophase method with certain enhancements: in Phase I, we use a distributed auction algorithm to solve the single objective assignment problems to obtain the socalled supported Pareto optimal solutions; we apply a ranking approach with tight upper/lower bounds in ...
A fast SNR estimation method for sigmadelta modulator design
Jiandong Cheng; Guoyong Shi; Ailin Zhang 2013 IEEE International Conference of IEEE Region 10 (TENCON 2013), 2013
This paper presents a fast symbolic method for computation of the signalto noise ratio (SNR) of switchedcapacitor sigmadelta modulators. The key idea is to use a Taylor expansion polynomial to approximate the rational expression of a noise transfer function (NTF). This new method can be used in automatic optimization tools developed for switchedcapacitor sigmadelta modulator design.
A Survey of the State of the Art in Data Mining and Integration Query Languages
Sabri Pllana; Ivan Janciak; Peter Brezany; Alexander Wohrer 2011 14th International Conference on NetworkBased Information Systems, 2011
The major aim of this survey is to identify the strengths and weaknesses of a representative set of DataMining and Integration (DMI) query languages. We describe a set of properties of DMIrelated languages that we use for a systematic evaluation of these languages. In addition, we introduce a scoring system that we use to quantify our opinion on how well ...
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Educational Resources on Delta modulation
Back to TopeLearning
Amit Phadikar; Santi P. Maity; Malay K. Kundu 2008 Sixth Indian Conference on Computer Vision, Graphics & Image Processing, 2008
This paper proposes a transform domain datahiding scheme for quality access control of images. The original image is decomposed into tiles by applying nlevel liftingbased discrete wavelet transformation (DWT). A binary watermark image (external information) is spatially dispersed using the sequence of number generated by a secret key. The encoded watermark bits are then embedded into all DWTcoefficients of nthlevel ...
Decimation filter design for RSFQ ΣΔ converter
M. Slimani; R. Guelaz; P. Desgreys; P. Loumeau 2009 Joint IEEE NorthEast Workshop on Circuits and Systems and TAISA Conference, 2009
In order to develop superconducting oversampled AD converter, based on a band pass sigma delta modulator, we study a sinc decimation filter using topdown method: Matlab simulations are performed to determine filter specifications, VHDL behavioral model of the complete architecture (sigma delta AD converter, I/Q mixer and low pass decimation filter) is realized to validate decimation filter performance and finally ...
Distributed algorithms for biobjective assignment problems
Chendong Li; Chulwoo Park; Krishna R. Pattipati; David L. Kleinman 2011 50th IEEE Conference on Decision and Control and European Control Conference, 2011
In this paper, we study the biobjective assignment problem, a NPhard version of the classical assignment problem. We employ an effective twophase method with certain enhancements: in Phase I, we use a distributed auction algorithm to solve the single objective assignment problems to obtain the socalled supported Pareto optimal solutions; we apply a ranking approach with tight upper/lower bounds in ...
A fast SNR estimation method for sigmadelta modulator design
Jiandong Cheng; Guoyong Shi; Ailin Zhang 2013 IEEE International Conference of IEEE Region 10 (TENCON 2013), 2013
This paper presents a fast symbolic method for computation of the signalto noise ratio (SNR) of switchedcapacitor sigmadelta modulators. The key idea is to use a Taylor expansion polynomial to approximate the rational expression of a noise transfer function (NTF). This new method can be used in automatic optimization tools developed for switchedcapacitor sigmadelta modulator design.
A Survey of the State of the Art in Data Mining and Integration Query Languages
Sabri Pllana; Ivan Janciak; Peter Brezany; Alexander Wohrer 2011 14th International Conference on NetworkBased Information Systems, 2011
The major aim of this survey is to identify the strengths and weaknesses of a representative set of DataMining and Integration (DMI) query languages. We describe a set of properties of DMIrelated languages that we use for a systematic evaluation of these languages. In addition, we introduce a scoring system that we use to quantify our opinion on how well ...
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IEEEUSA EBooks

The Structure of Quantization Noise from SigmaDelta Modulation
When the sampling rate of a sigmadelta modulator far exceeds the frequencies of the input signal. its modulation noise is highly correlated with the amplitude of the input. We derive simple algebraic expressions for this noise and its spectrum in terms of the input amplitude. The results agree with measurements taken on a breadboard circuit. This work can be useful for designing oversarnpled analog to digital converters that use sigmadelta modulation for the primary conversion.

A Use of Double Integration in Sigma Delta Modulation
Sigma delta modulation is viewed as a technique that employs integration and feedback to move quantization noise out of baseband. This technique may he iterated by placing feedback loop around feedback loop, but when three or more loops are used the circuit can latch into undesirable overloading modes. In the desired mode, a simple linear theory gives a good description of the modulation even when the quantization has only two levels. A modulator that employs double integration and twolevel quantization is easy to implement and is tolerant of parameter variation. At sampling rates of 1 MHz it provides resolution equivalent to 16 bit PCM for voiceband signals. Digital filters that are suitable for converting the modulation to PCM are also described.

Multistage SigmaDelta Modulation
We provide a theoretical basis for multistage sigmadelta modulation (MSM), which is a cascade realization of several singleloop sigmadelta modulators with a linear combinatorial network. Equations are derived describing the output and the quantization noise of MSM for an arbitrary input signal and the noise shaping characteristic of MSM is investigated. The spectral characteristics of an _m_stage sigmadelta modulator with both dc and sinusoidal inputs are developed. For both types of inputs the binary quantizer noise of the _m_th (_m_ Â¿ 3) sigmadelta quantizer, which appears at the output as an _m_th order difference, is asymptotically white, uniformly distributed, and uncorrelated with the input level. It is also found that for an _m_stage sigmadelta quantizer with either an ideal lowpass filter or a sinc _m_ + 1 filter decoder, the average quantization noise of the system is inversely proportional to the (2_m_, + 1)th power of the oversampling ratio _R_. This implies that highorder systems are favorable in terms of the trade off between the quantization noise and the oversampling ratio. Simulation results are presented to support the theoretical analysis.

Multirate Filter Designs Using Comb Filters
Decimation is an important component of oversampled analogtodlgital conversion. It transforms the digitally modulated signal from short words occurring at high sampling rate to longer words at the Nyquist rate. Here we are concerned with the initial stage of decimation, where the word rate decreases to about four times the Nyquist rate. We show that digital filters comprising cascades of integrateanddump functions can match the structure of the noise from sigma delta modulation to provide decimation with negligible loss of signaltonoise ratio. Explicit formulas evaluate particular tradeoffs between modulation rate, signaltonoise ratio, length of digital words, and complexity of the modulating and decimating functions.

An Approach to the Implementation of Digital Filters
An approach to the implementation of digital filters is presented that employs a small set of relatively simple digital circuits in a highly regular and modular configuration, well suited to LSI construction. Using parallel processing and serial, two'scomplement arithmetic, the required arithmetic circuits (adders and multipliers ) are quite simple, as are the remaining circuits, which consist of shift registers for delay and small readonly memories for coefficient storage. The arithmetic circuits are readily multiplexed to process multiple data inputs or to effect multiple, but different, filters (or both), thus providing for efficient hardware utilization. Up to 100 filter sections can be multiplexed in audiofrequency applications using presently available digital circuits in the mediumspeed range. The filters are also easily modified to realize a wide range of filter forms, transfer functions, multiplexing schemes, and roundoff noise levels by changing only the contents of the readonly memory and/or the timing signals and the length of the shiftregister delays. A simple analogtodigital converter, which uses delta modulation as an intermediate encoding process is also presented for audiofrequency applications.

A SecondOrder HighResolution Incremental A/D Converter with Offset and Charge Injection Compensation
Sigmadelta modulation, associated with oversampling and noise shaping, is a wellknown technique used in highaccuracy A/D converters. Such converters, required in telecommunications applications, are characterized by ac perfonnance such as signaltonoise ratio. Moreover, they are mainly dedicated to applications which can tolerate offset and gain errors. On the other hand, measurement and instrumentation applications require absolute accuracy, e.g., offset and gain errors cannot be tolerated. These applications are characterized by dc perfonnance such as differential and integral nonlinearides, offset and gain errors, and they often require high resolution. The secondorder incremental A/D converter, which makes use of sigmadelta modulation associated with a simple digital filter, is capable of achieving such requirements. Experimental results, obtained of circuits fabricated in a SACMOS 3Â¿m technology, indicate that 15bit absolute accuracy is easily achievable, even with a low reference voltage.

Oversampled SigmaDelta Modulation
Oversampled sigmadelta modulation has been proposed as a practical implementation for high rate analogtodigital conversion because of its simplicity and its robustness against circuit imperfections. To date, mathematical developments of the basic properties of such systems have been based either on simplified continuoustime approximate models or on linearized discretetime models where the quantizer is replaced by an additive white uniform noise source. In this paper. we rigorously derive several basic properties of a simple discretetime single integrator loop sigmadelta modulator with an accumulateanddump demodulator. The derivation does not require any assumptions on the correlation or distribution of the quantizer error, and hence involves no linearization of the nonlinear system, but it does show that when the input is constant, the state sequence of the integrator in the encoder loop can be modeled exactly as a linear system in an appropriate space. Two basic properties are developed: 1) the behavior of the sigmadelta quantizer when driven by a constant input and its relation to uniform quantization, and 2) the ratedistortion tradeoffs between the oversampling ratio and the average meansquared quantization error.

Fully Controlled ThreePhase Bridge Converters
This chapter discusses the operation of a three‐phase fully controlled bridge converter. It is shown that by suitable control, this device can be used to achieve either a three‐phase controllable voltage source or a three‐phase controllable current source. The chapter presents a refinement of six‐step operation. In particular, one of several pulse‐width modulation (PWM) control strategies that allows the amplitude of the fundamental component of the voltage to be readily controlled is discussed. Six‐step modulation, extended sine‐triangle modulation, and space‐vector modulation are all voltage‐source modulation schemes. The chapter explains usage of these schemes to develop an open‐loop voltage‐regulated converter. Hysteresis modulation and delta modulation are both current source‐based schemes. These are used as the basis of developing an open‐loop current‐regulated converter. Finally, the chapter focuses on closed‐loop methods of regulating q‐ and d‐axis voltages and currents.

This chapter contains sections titled: A SelfCalibrating 15 Bit CMOS A/D Converter A RatioIndependent Algorithmic AnalogtoDigital Conversion Technique A PerChannel A/D Converter Having 15Segment Âµ255 Companding A Use of Double Integration in Sigma Delta Modulation MOS ADCFilter Combination That Does Not Require Precision Analog Components A Voiceband 15b Interpolative Converter Chip Set A 12bit SigmaDelta AnalogtoDigital Converter with a 15MHz Clock Rate An 8bit HighSpeed CMOS A/D Converter An 8MHz CMOS Subranging 8Bit A/D Converter A Pipelined 5Msample/s 9bit AnalogtoDigital Converter

Fully Controlled 3Phase Bridge Converters
This chapter contains sections titled: Introduction The 3Phase Bridge Converter 180Â° Voltage Source Operation PulseWidth Modulation SineTriangle Modulation ThirdHarmonic Injection SpaceVector Modulation Hysteresis Modulation Delta Modulation OpenLoop Voltage and Current Control ClosedLoop Voltage and Current Controls References Problems
Standards related to Delta modulation
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