Results 251 to 260 of about 130,433 (340)
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Oversampled Sigma-Delta Modulation
IEEE Transactions on Communications, 1987Summary: Oversampled sigma-delta modulation has been proposed as a practical implementation for high rate analog-to-digital 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 continuous-time approximate ...
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Decimation for Sigma Delta Modulation
IEEE Transactions on Communications, 1986Decimation is an important component of oversampled analog-to-digital 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.
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IEEE transactions on industry applications, 2023
This article demonstrates sigma-delta pulse density modulation (PDM) without common mode voltage on a four-leg voltage source inverter designed as a grid-forming inverter.
Matthew P. Storm, A. Julian, G. Oriti
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This article demonstrates sigma-delta pulse density modulation (PDM) without common mode voltage on a four-leg voltage source inverter designed as a grid-forming inverter.
Matthew P. Storm, A. Julian, G. Oriti
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Modeling and simulation of digital closed-loop fiber optic gyroscope based on sigma-delta modulation
International Conference on Electronic Information Engineering and Computer Science, 2023This paper proposes a closed-loop fiber optic gyroscope control method based on the Sigma-delta modulation technique to improve the fiber optic gyroscope proportional-integral control method.
Jian Zhang +3 more
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Implementation of Burst Control based on Sigma-Delta Modulation in Low-Cost Microcontroller
Compel, 2022Sigma-delta modulation is a well-known tool in telecommunication and digital signal processing. However, in power electronics, its use did not attract sufficient interest.
V. Sidorov, A. Chub, D. Vinnikov
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European Conference on Cognitive Ergonomics, 2022
This paper demonstrates sigma-delta pulse density modulation without common mode voltage in a four-leg voltage source inverter built with SiC MOSFETs and controlled by an FPGA. The converter does not produce common mode voltage in the switching frequency
Matthew P. Storm, A. Julian, G. Oriti
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This paper demonstrates sigma-delta pulse density modulation without common mode voltage in a four-leg voltage source inverter built with SiC MOSFETs and controlled by an FPGA. The converter does not produce common mode voltage in the switching frequency
Matthew P. Storm, A. Julian, G. Oriti
semanticscholar +1 more source
A Model of Continuous-Time Sigma Delta Modulation Based on Pulse Frequency Encoding
International Symposium on Circuits and Systems, 2020The parallelism between a first-order sigma-delta modulator and a VCO-based ADC allows to calculate the DFT of the sigma delta sequence using Pulse Frequency Modulation theory.
V. Medina +3 more
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Multistage sigma-delta modulation
IEEE Transactions on Information Theory, 1989A theoretical basis is provided for multistage sigma-delta modulation (MSM), which is a cascade realization of several single-loop sigma-delta 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 ...
W. Chou, P.W. Wong, R.M. Gray
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Proceedings of the 2003 International Symposium on Circuits and Systems, 2003. ISCAS '03., 2003
/spl Sigma//spl Delta/ modulators for portable applications are presented operating within a large range of supply voltages. A 2/sup nd/ order and a cascaded 3rd order modulator are designed in Switched-Opamp (SO) technique with common mode level shift.
J. Sauerbrey +3 more
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/spl Sigma//spl Delta/ modulators for portable applications are presented operating within a large range of supply voltages. A 2/sup nd/ order and a cascaded 3rd order modulator are designed in Switched-Opamp (SO) technique with common mode level shift.
J. Sauerbrey +3 more
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IEEE Transactions on Communications, 1992
A modulo sigma-delta modulator is introduced, and the behavior of the quantization error is derived. The system consists of a modulo limiter followed by a sigma-delta modulator. The limiter confines the input to the no-overload region of the sigma-delta modulator, and the modulo arithmetic performed by the limiter is amenable to recently developed ...
Chou, Wu, Gray, Robert M.
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A modulo sigma-delta modulator is introduced, and the behavior of the quantization error is derived. The system consists of a modulo limiter followed by a sigma-delta modulator. The limiter confines the input to the no-overload region of the sigma-delta modulator, and the modulo arithmetic performed by the limiter is amenable to recently developed ...
Chou, Wu, Gray, Robert M.
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