Results 61 to 70 of about 1,153 (147)
Analogue to Digital and Digital to Analogue Converters (ADCs and DACs): A Review Update [PDF]
, 2016 This is a review paper updated from that presented for CAS 2004. Essentially, since then, commercial components have continued to extend their performance boundaries but the basic building blocks and the techniques for choosing the best device and ...
Pickering, J.
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Efficient Digital Signal Processing Techniques and Architectures for On-Board Processors [PDF]
, 2016 In this paper, we present a number of algorithmic and architectural DSP solutions to be incorporated in digital OBPs for communication satellites to boost the system performance primarily in terms of reducing their power consumption.
Angeletti, P. +11 more
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Object-based coding for plenoptic videos [PDF]
, 2010 A new object-based coding system for a class of dynamic image-based representations called plenoptic videos (PVs) is proposed. PVs are simplified dynamic light fields, where the videos are taken at regularly spaced locations along line segments instead ...
Chan, SC, Ng, KT, Shum, HY, Wu, Q
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Log-domain All-pass Filter-based Multiphase Sinusoidal Oscillators [PDF]
, 2013 Log-domain current-mode multiphase sinusoidal oscillators based on all-pass filters are presented in this paper. The first-order differential equation is used for obtaining inverting and non-inverting all-pass filters.
Prommee, P., Wongprommoon, N.
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A Joint Linearization/Companding Approach for Improving a CO-OFDM Transmitter
, 2015 International audience—The joint use of peak-to-average power ratio (PAPR) reduction and linearization via digital predistortion is investigated in this letter, with the view to improve the performances of coherent optical OFDM (CO-OFDM) systems ...
Azou, Stéphane +6 more
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EURASIP Journal on Wireless Communications and NetworkingVisible light communication (VLC) is a promising wireless high-data-rate transmission technology that uses visible light. Optical Orthogonal Frequency Division Multiplexing (OOFDM)-based systems, especially asymmetrically clipped optical OFDM (ACO-OFDM),
Amal Yasser +2 more
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Optimal analog wavelet bases construction using hybrid optimization algorithm [PDF]
, 2016 An approach for the construction of optimal analog wavelet bases is presented. First, the definition of an analog wavelet is given. Based on the definition and the least-squares error criterion, a general framework for designing optimal analog wavelet ...
He, Yigang, Li, Hongmin, Sun, Yichuang
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An object-based compression system for a class of dynamic image-based representations [PDF]
, 2005 S P I E Conference on Visual Communications and Image Processing, Beijing, China, 12-15 July 2005This paper proposes a new object-based compression system for a class of dynamic image-based representations called plenoptic videos (PVs).
Chan, SC, Ng, KT, Shum, HY, Wu, Q
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PAPR in AFDM: Upper Bound and Reduction With Normalized μ-Law Companding
IEEE AccessAffine Frequency Division Multiplexing (AFDM) is an advanced waveform technique designed for environments with significant Doppler shifts and time-frequency dispersion.
Vundela Madhava Reddy +1 more
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PAPR reduction of multi‐carrier systems with simple nonlinear companding transform
Electronics Letters, 2014 A simple nonlinear companding transform which makes full use of the statistical characteristics of the original multi‐carrier signals and combining them with the simplest clipping theory is proposed to reduce the peak‐to‐average power ratio (PAPR) of multi‐carrier systems.
Siming Peng, Yuehong Shen, Zhigang Yuan
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