Results 211 to 220 of about 26,151 (258)
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A sensor array optimization method for electronic noses with sub-arrays
Sensors and Actuators B: Chemical, 2009Sensor array configuration needs to be optimized in developing an application-specific instrument of electronic noses. Currently, sensor array optimization is commonly done by feature selection techniques. These methods could solve how to optimize a sensor array. However, they could not figure out what are the unique functions that each sensor plays in
Shunping Zhang +2 more
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Integrated sensor array optimization with statistical evaluation
Sensors and Actuators B: Chemical, 2010In a sensor array system, sensor selection is to select optimum sensor elements which as a whole can maximize the separability of sensor array responses to different analytes. The purpose is to improve the quality of input to a classifier, thereby, improve correct classification rate. This paper introduces an integrated approach of cluster analysis (CA)
Xiajing Shi, Susan Lu
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Optimal positioning of sensors for a microphone array
Proceedings of ICASSP '94. IEEE International Conference on Acoustics, Speech and Signal Processing, 2002Sensor positioning has an important influence on the performance of array processing. The main contributions of the paper are the proposal of criteria to evaluate and to optimize the performance of an array of sensors through its geometric configuration, the number and the positions of the sensors.
Saeed Gazor, Yves Grenier
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Optimizing an array of sensors for magnetoencephalography
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society, 2002Modern magnetoencephalographic (MEG) instruments estimate the location of endocranial current sources with an array of magnetometers. The authors provide a technique for computing the magnetometer orientations that achieve minimum mean-square localization error.
B. Hochwald, A. Nehorai
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Optimization of the Geometry and Porosity of Microelectrode Arrays for Sensor Design
Analytical Chemistry, 2002This paper describes the systematic investigation of a range of microelectrode arrays with varying dimensions fabricated by standard photolithographic and reactive-ion etching techniques. As expected from theory, the electrochemical behavior of microelectrode arrays with a constant individual diameter varied strongly with center-to-center spacing, the ...
Sandison, Mairi E. +3 more
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Optimal design of linear array of sensors
[Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing, 1991The authors address the issue of design of linear arrays of sensors with application to high-resolution direction-of-arrival (DOA) algorithms, and present the D-optimality based design criterion (DOBC). The design technique employs certain prior information in the cases of low-angle tracking and where targets are close to each other, and provides an ...
Xinping Huang +2 more
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Optimal Sensor Array Configuration in Remote Image Formation
IEEE Transactions on Image Processing, 2008Determination of optimal sensor configuration is an important issue in many remote imaging modalities, such as tomographic and interferometric imaging. In this paper, a statistical optimality criterion is defined and a search is performed over the space of candidate sensor locations to determine the configuration that optimizes the criterion over all ...
Behzad Sharif, Farzad Kamalabadi
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Optimal analysis for sensor-target geometries of linear sensor arrays in UWSN
2017 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), 2017Considering that the bearing measurement noise is distance-dependent in UWSN, this paper studies the sensortarget geometries optimization of linear sensor arrays and presents the optimal localization via noisy bearing measurements. As for the three constrained scenarios of linear sensor arrays, we analyze the optimal sensor-target geometries in terms ...
Pengwei Li, Shilian Wang, Eryang Zhang
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Vector sensors and vector sensor line arrays: Comments on optimal array gain and detection
The Journal of the Acoustical Society of America, 2006This paper examines array gain and detection performance of single vector sensors and vector sensor line arrays, with focus on the impact of nonacoustic self noise and finite spatial coherence of the noise between the vector sensor components. Analytical results based on maximizing the directivity index show that the particle motion channels should ...
Gerald L. D’Spain +3 more
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Optimal detection with vector sensors and vector sensor line arrays
The Journal of the Acoustical Society of America, 2006The detection performance of single vector sensors and vector sensor line arrays is degraded by nonacoustic self-noise and spatial coherence of the noise between vector sensor components. Results based on optimizing the directivity index for a single vector sensor show that the particle motion channels should always be included in the processing for ...
Gerald L. D’Spain +3 more
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