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This paper looks at the problem of understanding the measurements from two dimensional industrial processes such as paper manufacture or plastic film extrusion. It describes the difficulties of obtaining a sampled data measurement that is free from aliased components and goes on to describe different methods of measurement and how they can be matched to the spectrum of the web product. It outlines...
In this paper, a calibration method is proposed for a nonplanar array with arbitrary geometry. This method can estimate the errors of array sensor position, gain and phase simultaneously using known calibration sources. Note that the technique does not use iterative calculation in estimating the array parameters and hence it has no convergent problem. However, it requires that four directions of arrival...
This paper addresses the application of missing data recovery via matrix completion for audio sensor networks. We propose a method based on Euclidean distance matrix completion for ad-hoc microphone array location calibration. This method can calibrate a full network from partial connectivity information. The pairwise distances of microphones in close proximity are estimated using the coherence model...
This paper summarizes the challenges in achieving (and even specifying) the antenna polarization accuracy requirements for the Multifunction Phased Array Radar (MPAR) and the progress that has been made towards meeting these requirements through demonstrations and theoretical investigations.
Most sensor array processing methods for multiple source localization are sensitive to the errors in the nominal array manifold. Deviations from the true array manifold, especially resulting from sensor positioning errors, can seriously degrade the algorithms' performance. In this paper, a calibration algorithm to estimate the array sensor positions is proposed. This technique is based on the time...
This work investigates a lens-array-based integral imaging system which consist of a lens array, a main lens and a CCD camera. The lens array is placed on the object side of the main lens, thus can provide wider stereo baseline than other lens-array-based integral imaging system where the lens array is usually placed on the sensor side. However, the image captured by this system presents severe non-linear...
This paper is concerned with the problem of antenna array calibration in a non-stationary signal environment. In detail, this study focuses on calibration of the antenna array geometry by employing properties of the differential geometry of the array manifold vector. The proposed algorithm is totally blind, since the only available information to the array system is the received signal emitted by...
In this paper, we consider the manifold separation technique (MST), which stems from the wavefield modeling formalism developed for array processing. MST is a method for modeling the steering vector of antenna arrays of practical interest with arbitrary 2-D or 3-D geometry. It is the product of a sampling matrix (dependent on the antenna array only) and a Vandermonde structured coefficients vector...
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