Results 41 to 50 of about 54,240 (307)

Sparse Billboard and T-Shaped Arrays for Two-Dimensional Direction of Arrival Estimation

IEEE Open Journal of Signal Processing, 2023
In two-dimensional direction of arrival (2D-DOA) estimation, planar arrays can estimate the elevation and azimuth angles simultaneously. However, many planar array topologies such as billboard, L-shaped, T-shaped, and 2D nested arrays suffer from mutual ...
Saleh A. Alawsh, Mohamed H. Mohamed, Ibrahim Aboumahmoud, Mohammad Alhassoun, Ali H. Muqaibel   +4 more
doaj   +1 more source

A New Class of Broadband Arrays With Frequency Invariant Beam Patterns

, 2004
In this paper, a new class of broadband arrays with frequency-invariant beam pattern is proposed. By suitable substitutions, the beam pattern of a continuous sensor array with continuous temporal processing can be regarded as the Fourier transform of its
S. Weiss, Weiss, S, Liu, Wei, Liu, W, Weiss, S., Wei Liu   +5 more
core   +1 more source

A unified approach to combinatorial key predistribution schemes for sensor networks [PDF]

, 2012
There have been numerous recent proposals for key predistribution schemes for wireless sensor networks based on various types of combinatorial structures such as designs and codes.
Paterson, Maura B., Maura B. Paterson, Douglas R. Stinson, Stinson, D.R.   +3 more
core   +1 more source

2D Au Nanosphere Arrays/PVA-PBA-Modified-Hydrogel Composite Film for Glucose Detection with Strong Diffraction Intensity and Linear Response

Nanomaterials, 2019
A novel glucose sensor was reported that consisted of two-dimensional (2D) Au nanosphere arrays and glucose-responsive hydrogel film. This sensor exhibited an intense diffraction signal and an obvious diffraction color on a quartz slide due to the strong
Wenjuan Li, Junhuai Xiang, Dandan Men, Honghua Zhang   +3 more
doaj   +1 more source

Three-Dimensional Arterial Pulse Signal Acquisition in Time Domain Using Flexible Pressure-Sensor Dense Arrays

Micromachines, 2021
In this study, we developed a radial artery pulse acquisition system based on finger-worn dense pressure sensor arrays to enable three-dimensional pulse signals acquisition.
Jianzhong Chen, Ke Sun, Rong Zheng, Yi Sun, Heng Yang, Yifei Zhong, Xinxin Li   +6 more
doaj   +1 more source

Design of frequency invariant beamformer for broadband arrays

, 2007
A simple method for the design of a class of arrays with frequency invariant beam patterns is proposed. Starting from the desired frequency invariant beam pattern of an n-D array, the proposed method uses a series of substitutions and an n-D inverse ...
Weiss, Stephan, Stephan Weiss, Liu, Wei, Weiss, S., Liu, W., Wei Liu   +5 more
core   +1 more source

A Practical Method to Estimate the Resolving Power of a Chemical Sensor Array: Application to Feature Selection

Frontiers in Chemistry, 2018
A methodology to calculate analytical figures of merit is not well established for detection systems that are based on sensor arrays with low sensor selectivity.
Luis Fernandez, Luis Fernandez, Jia Yan, Jia Yan, Jordi Fonollosa, Jordi Fonollosa, Jordi Fonollosa, Javier Burgués, Agustin Gutierrez, Agustin Gutierrez, Santiago Marco, Santiago Marco   +11 more
doaj   +1 more source

Evaluation of Sensor Arrays: from Sensor Selection to Array Analysis [PDF]

ECS Meeting Abstracts, 2006
Abstract not Available.
Margie Homer, Hanying Zhou, April Jewell, Charles Taylor, Abhijit Shevade, Adam Kisor, Margaret Ryan   +6 more
openaire   +1 more source

Demonstration of near infrared gas sensing using gold nanodisks on functionalized silicon [PDF]

, 2011
This paper was published in OPTICS EXPRESS and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.19.007664.
Ortuño Molinero, Rubén, Rodríguez Cantó, Pedro Javier, Peransí Llopis, Sergio, Rodríguez Cantó, Pedro, B. Tomás-Navarro, Martínez, Alejandro, F. J. Rodríguez-Fortuño, Tomás Navarro, Begoña, Rodríguez Fortuño, Francisco José, Martínez Marco, Maria, R. Ortuño, S. Peransí-Llopis, M. Martínez-Marco, P.J. Rodríguez-Cantó, Tomás Navaro, Bergoña, Martínez Marco, Mª Luz, Peransi Llopis, Sergio Manuel, Rodríguez Fortuño, Francisco, Ortuño, Rubén, A. Martínez   +19 more
core   +1 more source

Source bearing and steering-vector estimation using partially calibrated arrays

, 2009
The problem of source direction-of-arrival (DOA) estimation using a sensor array is addressed, where some of the sensors are perfectly calibrated, while others are uncalibrated. An algorithm is proposed for estimating the source directions in addition to
Lu, Y., Li, M.
core   +1 more source