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Super nested arrays: Sparse arrays with less mutual coupling than nested arrays [PDF]

2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2016
In array processing, mutual coupling between sensors has an adverse effect on the estimation of parameters (e.g., DOA). Sparse arrays, such as nested arrays, coprime arrays, and minimum redundancy arrays (MRAs), have reduced mutual coupling compared to uniform linear arrays (ULAs).
Chun-Lin Liu, P P Vaidyanathan
exaly   +3 more sources

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COSTING NESTED ARRAY CODES

Parallel Processing Letters, 2002
We discuss a language-based cost model for array programs built on the notions of work complexity and parallel depth. The programs operate over data structures comprising nested arrays and recursive product-sum types. In a purely functional setting, such programs can be implemented by way of the flattening transformation that converts codes over ...
Roman Lechtchinsky, Manuel M. T. Chakravarty, Gabriele Keller   +2 more
openaire   +1 more source

Constructions of Nested Orthogonal Arrays

Journal of Combinatorial Designs, 2013
AbstractA symmetric nested orthogonal array, denoted by NOA, is an OA which contains an OA as a subarray, where . Nested orthogonal arrays are useful in designing an experimental setup consisting of two experiments, the expensive one of higher accuracy being nested in a relatively less expensive one of lower accuracy.
Wang, Kun, Li, Yang
openaire   +2 more sources

Robust adaptive beamforming in nested array

Signal Processing, 2015
In this communication, we consider the problem of designing robust adaptive beamformer in the newly proposed nested array, where we maintain distortionless response towards the true desired signal and suppress more interferences than the number of actual physical sensors.
Jie Yang 0075, Guisheng Liao, Jun Li 0007   +2 more
openaire   +1 more source

Array Gain of a Nested Array in Spatially Uncorrelated Noise

2021 OES China Ocean Acoustics (COA), 2021
Spatial resolution will be improved with the increment of the aperture in array signal processing. In order to obtain high resolution, a large number of sensors are needed for the uniform linear array (ULA), resulting in the high hardware cost and computational complexity.
Ran Cao, Xuan Zhou, Jingwei Yin, Longxiang Guo   +3 more
openaire   +1 more source

Nested Arrays in Two Dimensions, Part II: Application in Two Dimensional Array Processing

IEEE Transactions on Signal Processing, 2012
This paper explores the practical application of a new class of two dimensional arrays, namely, the two dimensional nested arrays, in array processing problems like two dimensional direction of arrival estimation.
Piya Pal, P P Vaidyanathan
exaly   +1 more source

Operators in an APL containing nested arrays

ACM SIGAPL APL Quote Quad, 1978
Formal definitions of several functions and operators for manipulating nested arrays are presented. Three operators that control the application of a function to the items or groups of items of an array are defined. In addition, the definition of current APL operators is extended to nested arrays. A proposal is presented to accept some of the ideas for
Michael A. Jenkins, Jean Michel
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Nested Array Processing for Distributed Sources

IEEE Signal Processing Letters, 2014
We consider the problem of using linear nested arrays to estimate the directions of arrival (DOAs) of distributed sources and to detect the source number, where we have more sources than actual physical sensors. Angular spread, caused by the multipath nature of the distributed sources, makes the commonly used point-source assumption challenging.
Keyong Han, Arye Nehorai
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Further results on the existence of nested orthogonal arrays

Designs, Codes, and Cryptography, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jianxing Yin, Yin Jianxing
exaly   +3 more sources

Two dimensional nested arrays on lattices

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
In this paper, we develop the theory of a new class of two dimensional arrays with sensors on lattice(s) which can be used to construct a virtual array of much larger size through passive processing. This structure is obtained by systematically nesting two arrays, one with sensors suitably placed on a sparse lattice and the other on an appropriately ...
Pal, Piya, Vaidyanathan, P. P.
openaire   +2 more sources