Analysis of Booth Multiplier based Conventional and Short Word Length FIR Filter
The optimized implantation of digital filters has remained one of the challenging tasks, for FPGA (Field- Programmable Gate Array) based system designers, due to the involvement of very complex circuitry for multiplication.
Aneela Pathan +3 more
doaj +1 more source
Bandpass Sigma–Delta Modulation: The Path toward RF-to-Digital Conversion in Software-Defined Radio
This paper reviews the state of the art on bandpass ΣΔ modulators (BP-ΣΔMs) intended to digitize radio frequency (RF) signals. A priori, this is the most direct way to implement software-defined radio (SDR) systems since the analog/digital interface is ...
Jose M. de la Rosa
doaj +1 more source
In free space optical (FSO) communication, acquisition, tracking and pointing (ATP) is the key technology to maintain a high-quality FSO link. Specifically, the detection of pointing angle deviation greatly affects the performance of ATP, especially ...
Xueyuan Ao +7 more
doaj +1 more source
A Hierarchical Modulation Enabled SNR Allocable Delta-Sigma Digital Mobile Fronthaul System
Internet of everything is being build up rapidly, which causes much higher requirements towards the flexibility of communication resources, especially the adaptivity of the fronthaul to various transmission distances and capacities.
Yang Zou +9 more
doaj +1 more source
Analisa Kinerja Sinusoidal PWM Inverter untuk Pengaturan Kecepatan Motor Induksi Tiga Fasa
PWM (pengaturan lebar pulsa) merupakan salah satu teknik yang baik untuk digunakan dalam sistem kendali (control system) saat ini. Pengaturan lebar modulasi dipergunakan di berbagai bidang yang sangat luas, salah satu diantaranya adalah pengaturan ...
Heri Haryanto, Vicky Immanuel
doaj +1 more source
Comparative Study between Duty Cycle Modulation (DCM) and Sigma-Delta (Ʃ∆) Modulation Based on Analog to Digital Conversion [PDF]
This paper presents a virtual comparative study between the Analog to Digital Conversion (ADC) based Duty Cycle Modulation (DCM) and Sigma-Delta (Ʃ∆) modulation.
OTAM Steve Ulriche, MOFFO Lonla Bertrand
doaj
A Low-Power Delta-Sigma Capacitance-to-Digital Converter for Capacitive Sensors
This paper proposes a low-power delta-sigma capacitance-to-digital converter (CDC) for a capacitive sensor. The input of the capacitive sensor employs a zoomed-in technique with the offset capacitor to extend the input capacitance range. The proposed CDC
Rongshan Wei +3 more
doaj +1 more source
Laser-sound reproduction by pulse amplitude modulation audio streams
Recently, the possibility to reproduce complex continuous acoustic signals via pulsed laser-plasma sound sources was demonstrated. This was achieved by optoacoustic transduction of dense laser pulse trains, modulated via single- or multi-bit Sigma–Delta,
Konstantinos Kaleris +3 more
doaj +1 more source
Adaptive Delta-Sigma Modulation for Enhanced Input Dynamic Range
An adaptive delta-sigma modulator of 1st order with one-bit quantization is presented. Adaptation is instantaneous and based on an exponential law. The feedback signal is a multibit discrete-level signal generated by a digital-to ...
Clemens M. Zierhofer
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Three-Level De-Multiplexed Dual-Branch Complex Delta-Sigma Transmitter
In this paper, a dual-branch topology driven by a Delta-Sigma Modulator (DSM) with a complex quantizer, also known as the Complex Delta Sigma Modulator (CxDSM), with a 3-level quantized output signal is proposed.
Anis Ben Arfi +4 more
doaj +1 more source

