نتایج جستجو برای: orthogonal signals

تعداد نتایج: 234482  

2011
Wei Zhuang Tianxu Du Huiqiang Tang

This paper presents a novel ECG signal measuring approach using compressive sensing method. The signal representing sparsity in any orthogonal basis can be well recovered using minimize L1 norm optimization, while satisfying the RIP condition for the measurement matrix  and orthogonal basis . First, based on this theorem, an analysis for evaluating the sparsity of ECG signal in orthogonal bas...

2010
S. F. Li J. Chen L. Q. Zhang Y. Q. Zhou

The Complete Complementary Sequence (CC-S) consists of several complementary orthogonal sequences and has optimal sidelobe level performance, which is satisfied with the requirement of the orthogonal Multiple Input Multiple Output (MIMO) radar signals. Aimed at the difficulty of high sidelobe level in Synthetic Aperture Radar (SAR) imaging processing in range dimension, an approach of depressin...

2009
D. J. Sakrison

h a series of orthogonal polynomials. This representation corresponds physically to a system conFig. VIII-1. Nonlinear filter. taining only multipliers as nonlinear elements. The suggestion offered in this report is to represent f by an orthogonal trigonometric series that corresponds physically to a system containing phase modulators. To simplify matters, let us first assume that the signals x...

2016
Vikas Chauhan Kevin Greene

Millimeter-wave (mm-wave) imaging provides compelling capabilities for security screening, navigation, and biomedical applications. Traditional scanned or focal-plane mm-wave imagers are bulky and costly. In contrast, phased-array hardware developed for mass-market wireless communications and automotive radar promise to be extremely low cost. In this work, we present techniques which can allow ...

Journal: :Journal of vision 2013
Andrea Pavan Rosilari Bellacosa Marotti George Mather

Motion and form encoding are closely coupled in the visual system. A number of physiological studies have shown that neurons in the striate and extrastriate cortex (e.g., V1 and MT) are selective for motion direction parallel to their preferred orientation, but some neurons also respond to motion orthogonal to their preferred spatial orientation. Recent psychophysical research (Mather, Pavan, B...

Journal: :EURASIP J. Wireless Comm. and Networking 2015
Junho Jo Illsoo Sohn

In this paper, we investigate the optimality of training signals for linear minimummean square error (LMMSE) channel estimation in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) with frequency-selective fading channels. This is a very challenging problem due to its mathematical intractability and has not been analytically solved in the literature. Using ...

Journal: :Innovative Technologies and Scientific Solutions for Industries 2019

Journal: :CoRR 2017
Simone Gaiarin Auro Michele Perego Edson Porto da Silva Francesco Da Ros Darko Zibar

Multi-eigenvalues transmission with information encoded simultaneously in both orthogonal polarizations is experimentally demonstrated. Performance below the HD-FEC limit is demonstrated for 8-bits/symbol 1-GBd signals after transmission up to 207 km of SSMF.

2014
Gaurav Verma Navneet Singh

Orthogonal frequency division multiplexing (OFDM) is one of the multi-carrier modulation (MCM) techniques that transmit signals through multiple carriers. These carriers (subcarriers) have different frequencies and they are orthogonal to each other. Orthogonal frequency division multiplexing techniques have been applied in both wired and wireless communications, such as the asymmetric digital s...

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