Delta modulation

View this topic in
Delta modulation (DM or Δ-modulation)is an analog-to-digital and digital-to-analog signal conversion technique used for transmission of voice information where quality is not of primary importance. DM is the simplest form of differential pulse-code modulation where the difference between successive samples is encoded into n-bit data streams. (Wikipedia.org)






Conferences related to Delta modulation

Back to Top

2013 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

  • 2007 IEEE Power Electronics Specialists Conference - PESC 2007



Periodicals related to Delta modulation

Back to Top

Consumer 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, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical 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, high-power 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.



Most published Xplore authors for Delta modulation

Back to Top

Xplore Articles related to Delta modulation

Back to Top

Multiplication-free adaptive digital filters

T. H. Park; D. H. Youn; I. W. Cha Proceedings of the IEEE, 1988

The authors update delta modulation digital filter weights using the LMS (least-mean-squares) and the SIGN algorithms to realize an adaptive digital filter without multiplication operations. It is shown that using the SIGN algorithm results in an adaptive filter that can be implemented using the simple up/down counting operations. Learning curves demonstrating convergence properties of the algorithms for a system identification ...


Guideline for a Simplified Differential-Mode EMI Filter Design

Klaus Raggl; Thomas Nussbaumer; Johann W. Kolar IEEE Transactions on Industrial Electronics, 2010

The design of electromagnetic interference (EMI) input filters, needed for switched power converters to fulfill the regulatory standards, is typically associated with high development effort. This paper presents a guideline for a simplified differential-mode (DM) filter design. First, a procedure to estimate the required filter attenuation based on the total input rms current using only a few equations is given. ...


The Space Shuttle Ground Terminal Delta Modulation System

R. Auger; M. Glancy; M. Goutmann; A. Kirsch IEEE Transactions on Communications, 1978

Shuttle voice processing uses a Variable Slope Delta Modulation scheme which is a variant of the ABATE algorithm. This paper summarizes the ground terminal subsystem which processes the multiplexed voice and telemetry data digital sequence in the downlink processing and digitizes the voice signal in the uplink processing. The Delta Modulation System (DMS) performance characteristics are given in terms of ...


Power converter EMI analysis including IGBT nonlinear switching transient model

Meng Jin; Ma Weiming Proceedings of the IEEE International Symposium on Industrial Electronics, 2005. ISIE 2005., 2005

It is well known that very high dv/dt and di/dt during the switching instant is the major high frequency EMI source. This paper proposes an improved and simplified EMI modeling method considering the IGBT switching behavior model. The device turn-on and turn-off dynamics are investigated by dividing the nonlinear transition by several stages. The real device switching voltage and current ...


Measurement and analysis programme within the Thousand Roofs Programme

G. Heilscher; K. Kiefer; V. U. Hoffmann Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on, 1994

The BMFT and the State governments jointly started a "Thousand Roofs Programme" in September 1990. At first, this programme was limited to the territory of the former West Germany. In July 1991, the extension to the new Federal States was announced. In the programme the installation of 2250 small (1-5 kWp) grid-connected PV systems on the roofs of one or ...


More Xplore Articles

Educational Resources on Delta modulation

Back to Top

eLearning

Multiplication-free adaptive digital filters

T. H. Park; D. H. Youn; I. W. Cha Proceedings of the IEEE, 1988

The authors update delta modulation digital filter weights using the LMS (least-mean-squares) and the SIGN algorithms to realize an adaptive digital filter without multiplication operations. It is shown that using the SIGN algorithm results in an adaptive filter that can be implemented using the simple up/down counting operations. Learning curves demonstrating convergence properties of the algorithms for a system identification ...


Guideline for a Simplified Differential-Mode EMI Filter Design

Klaus Raggl; Thomas Nussbaumer; Johann W. Kolar IEEE Transactions on Industrial Electronics, 2010

The design of electromagnetic interference (EMI) input filters, needed for switched power converters to fulfill the regulatory standards, is typically associated with high development effort. This paper presents a guideline for a simplified differential-mode (DM) filter design. First, a procedure to estimate the required filter attenuation based on the total input rms current using only a few equations is given. ...


The Space Shuttle Ground Terminal Delta Modulation System

R. Auger; M. Glancy; M. Goutmann; A. Kirsch IEEE Transactions on Communications, 1978

Shuttle voice processing uses a Variable Slope Delta Modulation scheme which is a variant of the ABATE algorithm. This paper summarizes the ground terminal subsystem which processes the multiplexed voice and telemetry data digital sequence in the downlink processing and digitizes the voice signal in the uplink processing. The Delta Modulation System (DMS) performance characteristics are given in terms of ...


Power converter EMI analysis including IGBT nonlinear switching transient model

Meng Jin; Ma Weiming Proceedings of the IEEE International Symposium on Industrial Electronics, 2005. ISIE 2005., 2005

It is well known that very high dv/dt and di/dt during the switching instant is the major high frequency EMI source. This paper proposes an improved and simplified EMI modeling method considering the IGBT switching behavior model. The device turn-on and turn-off dynamics are investigated by dividing the nonlinear transition by several stages. The real device switching voltage and current ...


Measurement and analysis programme within the Thousand Roofs Programme

G. Heilscher; K. Kiefer; V. U. Hoffmann Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on, 1994

The BMFT and the State governments jointly started a "Thousand Roofs Programme" in September 1990. At first, this programme was limited to the territory of the former West Germany. In July 1991, the extension to the new Federal States was announced. In the programme the installation of 2250 small (1-5 kWp) grid-connected PV systems on the roofs of one or ...


More eLearning Resources

IEEE.tv Videos

No IEEE.tv Videos are currently tagged "Delta modulation"

IEEE-USA E-Books

  • AnalogDigital Conversion

    This chapter contains sections titled: A Self-Calibrating 15 Bit CMOS A/D Converter A Ratio-Independent Algorithmic Analog-to-Digital Conversion Technique A Per-Channel A/D Converter Having 15-Segment µ-255 Companding A Use of Double Integration in Sigma Delta Modulation MOS ADC-Filter Combination That Does Not Require Precision Analog Components A Voiceband 15b Interpolative Converter Chip Set A 12-bit Sigma-Delta Analog-to-Digital Converter with a 15-MHz Clock Rate An 8-bit High-Speed CMOS A/D Converter An 8-MHz CMOS Subranging 8-Bit A/D Converter A Pipelined 5-Msample/s 9-bit Analog-to-Digital Converter

  • 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 two-level 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.

  • Fully Controlled 3Phase Bridge Converters

    This chapter contains sections titled: Introduction The 3-Phase Bridge Converter 180° Voltage Source Operation Pulse-Width Modulation Sine-Triangle Modulation Third-Harmonic Injection Space-Vector Modulation Hysteresis Modulation Delta Modulation Open-Loop Voltage and Current Control Closed-Loop Voltage and Current Controls References Problems

  • The Structure of Quantization Noise from SigmaDelta Modulation

    When the sampling rate of a sigma-delta 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 sigma-delta modulation for the primary conversion.

  • Fully Controlled Three-Phase 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.

  • Multirate Filter Designs Using Comb Filters

    Decimation is an important component of oversampled analog-to-dlgital 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 integrate-and-dump functions can match the structure of the noise from sigma delta modulation to provide decimation with negligible loss of signal-to-noise ratio. Explicit formulas evaluate particular tradeoffs between modulation rate, signal-to-noise ratio, length of digital words, and complexity of the modulating and decimating functions.

  • A Novel Architecture Design for VLSI Implementation of an FIR Decimation Filter

    A novel architecture design of a one stage FIR filter for decimation is described. It performs the decimation of a 1-bit code at 1024KHz of double integration Sigma Delta modulation output to PCM at 16KHz. This architecture is designed in such a way that it needs only a simple control structure suitable for VLSI implementation. We devised an algorithm for generating the coefficients of the filter with a minimum of required hardware. It does not require storing the coefficients in a ROM and continuously reading it to calculate the convolution. The accumulators needed to perform the direct convolution are arranged in a way that simplifies and minimizes the hardware required for the filter implementation. The filter response is Sinc3(f) which provides sufficient attenuation for modulation generated by means of double integration. The implementation of this filter requires the generation of the coefficients and the performance of the convolution. Three coefficients are needed with every input to obtain the output sequence. The major feature of this architecture is the use of an efficient algorithm to obtain the coefficients thereby reducing the area and power consumption. It is very suitable for VLSI implementation in CMOS technology.

  • 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's-complement 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 read-only 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 audio-frequency applications using presently available digital circuits in the medium-speed range. The filters are also easily modified to realize a wide range of filter forms, transfer functions, multiplexing schemes, and round-off noise levels by changing only the contents of the read-only memory and/or the timing signals and the length of the shift-register delays. A simple analog-to-digital converter, which uses delta modulation as an intermediate encoding process is also presented for audio-frequency applications.

  • A SecondOrder HighResolution Incremental A/D Converter with Offset and Charge Injection Compensation

    Sigma-delta modulation, associated with oversampling and noise shaping, is a well-known technique used in high-accuracy A/D converters. Such converters, required in telecommunications applications, are characterized by ac perfonnance such as signal-to-noise 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 second-order incremental A/D converter, which makes use of sigma-delta modulation associated with a simple digital filter, is capable of achieving such requirements. Experimental results, obtained of circuits fabricated in a SACMOS 3-¿m technology, indicate that 15-bit absolute accuracy is easily achievable, even with a low reference voltage.

  • Constraints Analysis for Oversampling AtoD Converter Structures on VLSl Implementation

    Requirements, applied to analog components and characteristics for oversampling A-to-D converter structures with second order loop transfer function, were analyzed through numerical and mathematical analyses. The results suggest that a first order predictive encoder, with first order noise shaping, is best suited to high resolution future VLSl implementation. It is most difficult to achieve a theoretical second order ¿-¿ modulation signal- to-noise ratio, because of the amplifier performance requirements. The operational amplifier gain should only be greater than kR/n, as long as the amplifier response is linear, where R is the oversampling ratio, ¿ is the angular stop band frequency and k is a. parameter depending on structures and integrator circuit configuration, if a switched capacitor integrator is employed in a noise shaping technology. A second order delta modulation coder does not seem to be applicable to a precision converter, but to a high speed converter instead.



Standards related to Delta modulation

Back to Top

No standards are currently tagged "Delta modulation"


Jobs related to Delta modulation

Back to Top