Results 11 to 20 of about 35,436 (308)
Delta Sigma Modulation and Demodulation
, 2022 Contains results from a laboratory experiment on delta-sigma modulation/demodulation.
Ara Abdulsatar Assim (12512428)
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Low-Pressure Small MEMS Accelerometer Using Sigma-Delta Modulation [PDF]
Proceedings, 2018 Encapsulation of MEMS accelerometers in vacuum is advantageous, since it allows integration with other sensors, leading to size and cost reduction. One technique to operate MEMS accelerometers in vacuum is the use of closed-loop Sigma-Delta modulation ...
Vasco Lima +3 more
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IEEE Open Journal of Signal ProcessingThis article considers the context of multiuser massive MIMO downlink precoding with low-resolution digital-to-analog converters (DACs) at the transmitter. This subject is motivated by the consideration that it is expensive to employ high-resolution DACs
Wai-Yiu Keung, Wing-Kin Ma
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Microgyroscope control system using a high-order band-pass continuous-time sigma-delta modulator [PDF]
, 2007 The paper presents a novel 6th order continuous-time, force-feedback band-pass sigma-delta modulator control system for the detection mode of micromachined vibratory gyroscopes.
Y. Dong +10 more
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New pulse modulator with low switching frequency
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2014 The author presents an integrating pulse modulator (analogue signal converter) with the pulse frequency and duration modulation similar to sigma-delta modulation (with low switching frequency), without quantization.
V. S. Golub
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Delta-Sigma Modulator based multiplier
IEICE Electronics Express, 2009 In this paper, a new technique is proposed for multiplication of two sampled low frequency analog signals and the result is in digital form. Out of the two signals, one signal is fed to the input of typical second order, ΔΣ Modulator (DSM). The operating period of the DSM circuit is varied directly in proportion to the absolute amplitude of the second ...
Diwakar, K. +3 more
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Digital calibration technique based AC injection for continuous‐time sigma‐delta converters
Electronics Letters, 2023 In this study, a digital calibration method applicable for a continuous‐time sigma‐delta analogue‐to‐digital converter is proposed using the AC injection technique.
Shengling Zhu, Lei Chen, Jie Su
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High-speed nested cascaded MASH Digital Delta-Sigma Modulator-based divider controller [PDF]
, 2018 The MASH Digital Delta-Sigma Modulator (DDSM) based divider controller represents a speed bottleneck in state of the art commercial PLL-based fractional-N frequency synthesizers. As next generation systems require higher phase detector frequencies, there
Yann Donnelly +5 more
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Performance Scrutiny of Two Control Schemes Based on DSM and HB in Active Power Filter [PDF]
Journal of Operation and Automation in Power Engineering, 2014 This paper presents a comparative analysis between two current control strategies, constant source power and generalized Fryze current, used in Active Power Filter (APF) applications having three different modulation methods. The Hysteresis Band (HB) and
R. Kazemzadeh +3 more
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A ΣΔ Closed-Loop Interface for a MEMS Accelerometer with Digital Built-In Self-Test Function
Micromachines, 2018 Sigma-delta (ΣΔ) closed-loop operation is the best candidate for realizing the interface circuit of MEMS accelerometers. However, stability and reliability problems are still the main obstacles hindering its further development for high-end ...
Dongliang Chen +5 more
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