Results 11 to 20 of about 59,486 (332)
A novel approach toward optimized image processing using sigma delta modulation
Mehran University Research Journal of Engineering and TechnologyImage processing has widespread uses practically in every branch of science and arts. Processing images is more difficult than processing sound or data as there are more bits in the high pixel quality image.
Aneela Pathan +3 more
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Multi-frequency Phase Laser Ranging based on Delta-Sigma Modulation
Guangtongxin yanjiu, 2022 In order to solve the problem that the laser satellite terminal can realize the ranging function while completing the communication function, this paper designs a method based on the Delta-Sigma modulation to realize the laser phase ranging, which can ...
Jin-xin ZUO +6 more
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Information, 2021 This work combines compressive sensing and short word-length techniques to achieve localization and target tracking in wireless sensor networks with energy-efficient communication between the network anchors and the fusion center.
Nuha A. S. Alwan, Zahir M. Hussain
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Optimal Design of Mobile Fronthaul Delta-Sigma Modulator based on Search Algorithm
Guangtongxin yanjiu, 2022 The Common Public Radio Interface (CPRI) used in mobile fronthaul has low spectrum efficiency. In this paper, we propose to use Delta-Sigma Modulation (DSM) technology as a new fronthaul interface.
WU Zi-qiang +3 more
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Experimental characterization of Sigma Delta Radio over fiber system for 5G C-RAN downlink
ICT Express, 2020 Radio over Fiber is a promising technology for the 5G Cloud Radio Access Network. We demonstrate experimentally Sigma Delta Radio over Fiber by means of Sigma Delta Modulator (SDM) subsequently replacing expensive digital to analog converters.
Muhammad Usman Hadi +3 more
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Noise Floor Reduction in Frequency Delta-Sigma Modulation Microphone Sensors
Sensors, 2021 Frequency delta-sigma modulator (FDSM) employing a variable frequency oscillator is a novel replacement of the classical delta-sigma modulators. This is advantageous for application to sensors, because an ADC can be intrinsically integrated with the ...
Koichi Maezawa +2 more
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Dual-Resonator MEMS Magnetometer Based on Self-Clocking Sigma-Delta Modulation
IEEE Sensors Journal, 2020 This paper presents the design and experimental evaluation of a micromachined Lorentz force magnetometer with a dual-resonator structure, interfaced with an electromechanical sigma-delta modulation (EM- $\Sigma \Delta {\text {M}}$ ) force rebalancing ...
Fang Chen +4 more
semanticscholar +1 more source
Small-size MEMS Accelerometer Encapsulated in Vacuum Using Sigma-Delta Modulation
2020 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL), 2020 A vacuum encapsulated MEMS accelerometer using Sigma-Delta modulation is here presented. Three different modulation orders (second, third, and fourth) were implemented in a field-programable gate array (FPGA), enabling flexibility for tuning the loop ...
V. Lima +4 more
semanticscholar +1 more source
Impulsive Sound Detection Directly in Sigma-Delta Domain
Archives of Acoustics, 2017 Recent implementations of Sigma-delta converters have achieved low cost, low power consumption and high integration while maintaining resolution as high as in Nyquist-rate converters.
Igor Dantas dos Santos MIRANDA +1 more
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Digital OFDM-PON Based on Delta–Sigma Modulation Employing Binary IM-DD Channels
IEEE Photonics Journal, 2017 In this paper, a delta–sigma modulation is proposed for the orthogonal frequency division multiplexed-passive optical network (OFDM-PON) to enable transmission of OFDM signals via binary intensity modulation and direct detection (IM-DD) channels ...
Cai Li +5 more
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