Results 211 to 220 of about 385,227 (263)

On the virtual array concept for higher order array processing

IEEE Transactions on Signal Processing, 2005
For about two decades, many fourth order (FO) array processing methods have been developed for both direction finding and blind identification of non-Gaussian signals. One of the main interests in using FO cumulants only instead of second-order (SO) ones in array processing applications relies on the increase of both the effective aperture and the ...
Laurent Albera
exaly   +3 more sources

Coherent wideband array processing

[Proceedings] ICASSP-92: 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, 1992
The authors present a method for coherent wideband direction finding of coplanar far field sources impinging on a two-dimensional array with a known arbitrary geometry. Termed the array manifold interpolation (AMI) method, it is practical, computationally efficient and robust.
Eyal Doron, Miriam A. Doron
openaire   +1 more source

Implementing degradable processing arrays

IEEE Micro, 1998
Today's burgeoning multimedia and network technology require large high-performance processing arrays. Conventional chip packaging and board-level integration cannot meet operating speeds in these high-performance systems. In addition, large systems require technologies that provide reliable, single packaging.
Stephanie R. Goldberg, Shambhu J. Upadhyaya   +1 more
openaire   +1 more source

Compressive sampling in array processing

2013 5th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2013
In this paper, we propose a sampling architecture for the efficient acquisition of multiple signals lying in a subspace. We show that without the knowledge of the signal subspace, the proposed sampling architecture acquires the signals at a sub-Nyquist rate.
Ali Ahmed 0004, Justin K. Romberg
openaire   +1 more source

Computer organization for array processing

Proceedings of the November 30--December 1, 1965, fall joint computer conference, part I on XX - AFIPS '65 (Fall, part I), 1965
In spite of recent advances in computer speeds, there are still problems which make even greater demands on computer capabilities. One such problem is that of global weather prediction. Here a three-dimensional grid covering the entire world must be stepped along through relatively short periods of simulated time to produce a forecast in a reasonable ...
D. N. Senzig, R. V. Smith
openaire   +1 more source

Decentralized processing in sensor arrays

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1985
We present a new scheme for decentralized processing in passive sensor arrays based on communicating the sample-covariance matrices of the subarrays. The new scheme offers improved accuracy over the conventional triangulation scheme with only a modest increase in the communication load.
Mati Wax, Thomas Kailath
openaire   +1 more source

An interleaved array-processing architecture

Proceedings of the July 9-12, 1984, national computer conference and exposition on - AFIPS '84, 1984
This paper describes an array-processing architecture capable of executing high-level vector operations. There are two distinguishing features of this architecture: First, the user can define for later use complex vector operations that involve several arithmetic operations and branching. Once defined, they appear as built-in vector instructions to the
J. Robert Jump, James D. Wise, David T. Harper III   +2 more
openaire   +1 more source

ARRAY RESEARCH ARRAY PROCESSING AT UBO

1967
Abstract : The purpose of this study was to determine the amount of predictable noise at Uinta Basin Seismological Observatory (UBO) by the development and application of noise prediction filters. A comparison of the surface and the 200-ft buried array was conducted to determine if a large amount of noise was present which attenuates rapidly with depth.
Paul R. Lintz, George C. Burrell
openaire   +1 more source

Parallel processing with an array of microcomputers

Microprocessors and Microsystems, 1981
Abstract This article describes a multicomputer system which can effectively use up to several hundred microcomputers to solve complex problems and outlines its operating schema, especially task interoperation and communication, as well as its areas of application.
Bruno Braunleder, Rudolf Kober
openaire   +1 more source

Temporal integration for array processing

[Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing, 1991
This paper deals with the study of the performance of array processings in the presence of moving sources. A simplified model of the spatial frequencies of a moving source is derived for the first time. It allows one to obtain analytical formulation of the variance of the estimated source bearings and of the probability of detection.
Jean-Pierre Le Cadre, Olivier Zugmeyer
openaire   +1 more source