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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).
Palghat Vaidyanathan, Chun-Lin Liu
exaly   +4 more sources

Construction of Nested Orthogonal Arrays

Discrete Mathematics, 2010
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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
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High order super nested arrays

2016 IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), 2016
Mutual coupling between sensors has a negative impact on the estimation of directions of arrival (DOAs). Sparse arrays such as nested arrays, coprime arrays, and minimum redundancy arrays (MRAs) have less mutual coupling than uniform linear arrays (ULAs). These sparse arrays also have a difference coarray of size O(N2), where N is the number of sensors,
Chun-Lin Liu, P. P. Vaidyanathan
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DOA Estimation in Conformal Arrays Based on the Nested Array Principles

Digital Signal Processing, 2016
The nested array structure has attracted great attention recently due to its ability in reducing the number of sensors in an array and at the same time preserving the array performance. While a uniform linear array (ULA) can detect at most N - 1 sources with N sensors, a nested array can provide O ( N 2 ) degrees of freedom with the same number of ...
Saeid Seydnejad, Dariush Abbasi-Moghadam
exaly   +3 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
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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.
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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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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
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