نتایج جستجو برای: measurement matrix

تعداد نتایج: 792923  

2008
Jan ZELA Karel HOFFMANN Přemysl HUDEC

New antenna matrices for both scalar and vector measurement of microwave interferograms for the frequency 2.45 GHz were developed and used for an analysis of sources of measurement errors. Influence of mutual coupling between individual antennas in an antenna matrix on a measurement of microwave interferograms, particularly on a measurement of interferogram minimum values, was studied. Simulati...

2015
Sheikh Md. Rabiul Islam Xu Huang Keng Liang Ou

Many algorithms have been developed to find sparse representation over redundant dictionaries or transform. This paper presents a novel method on compressive sensing (CS)-based image compression using sparse basis on CDF9/7 wavelet transform. The measurement matrix is applied to the three levels of wavelet transform coefficients of the input image for compressive sampling. We have used three di...

Journal: :EURASIP J. Adv. Sig. Proc. 2014
Wei Wang Dunqiang Lu Ying Wang Qinghua Chen Baoju Zhang

Compressive sensing can minimize the collection of redundant data in the acquisition step. However, it requires a huge amount of storage and creates a tremendous computation burden due to the size of random measurement matrix in compressive sensing theory for big data collection. The separable compressive sensing theory uses two-dimensional separable random measurement matrixes instead of a hug...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی 1387

abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...

Polymer-clay nano-composite materials, in which nano-meter thick layers of clay dispersed in polymer matrix, have generally higher mechanical properties than normal polymeric materials. A new three-dimensional unit cell model has been developed for modeling three constituent phases including inclusion, interphase and matrix. The total elastic modulus of nano-composite is evaluated.  Numerical r...

2010
Abdun Naser Mahmood Christopher Leckie Jiankun Hu Zahir Tari Mohammed Atiquzzaman

20.1 Fundamentals of Network Traffic Monitoring and Analysis . . . . . . . . . . . . . . . . . . 384 20.1.1 What Are the Traffic Measurement Problems? . . . . . . . . . . . . . . . . . . . . . . . . . . 384 20.1.2 Traffic Matrix Measurement . . . . . . . . . . 385 20.1.3 Traffic VolumeMeasurement . . . . . . . . . 385 20.1.4 Traffic Dynamics Measurement . . . . . . . 385 20.1.5 Traffic Mixture ...

1999
Matthias Mühlich Rudolf Mester

Many computer vision problems (e.g. the estimation of the fundamental matrix, the homography matrix, or camera calibration as well as the factorization method) belong to the class of subspace problems which are well-known in signal processing. They essentially consist in dividing a vector space into a lower dimensional data space and an orthogonal error space, based on the information available...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1389

one of the most important number sequences in mathematics is fibonacci sequence. fibonacci sequence except for mathematics is applied to other branches of science such as physics and arts. in fact, between anesthetics and this sequence there exists a wonderful relation. fibonacci sequence has an importance characteristic which is the golden number. in this thesis, the golden number is observed ...

Journal: :iranian journal of oil and gas science and technology 0
mohammadreza shishesaz associate professor, department of inspection engineering, petroleum university of technology, abadan, iran davood jafari m.s. student, department of inspection engineering, petroleum university of technology, abadan, iran davood zaarei associate professor, department of polymer engineering, south tehran branch, islamic azad university, tehran, iran iman danaee associate professor, department of inspection engineering, petroleum university of technology, abadan, iran

different amounts of nanoclay were incorporated into the acrylic resin matrix at 0, 1, 3, and 5 wt.% loadings. the coatings were applied on low carbon steel plates. optical microscopy, sedimentation test, transmission electron microscopy, and x-ray diffraction were employed to investigate the dispersion of nanoclay in matrix. the corrosion resistance of coatings was evaluated by electrochemical...

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