Results 231 to 240 of about 35,003 (279)
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DOA estimation in conformal arrays based on the nested array principles
Digital Signal Processing, 2016The 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 R Seydnejad +1 more
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A Novel Nested Array for Real-Valued Sources Exploiting Array Motion
IEEE Signal Processing Letters, 2021In this letter, a novel nested array is proposed which not only increases the degrees of freedom (DOF) but also reduces the mutual coupling that occurs in the general nested array structure by moving the original array only half wavelength. Here we deal with real-valued sources like AM or BPSK whereby we can explore the property of the sum coarray ...
Rajen Kumar Patra, Anindya Sundar Dhar
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Coprime Nested Arrays for DOA Estimation: Exploiting the Nesting Property of Coprime Array
IEEE Signal Processing Letters, 2022Zhe Peng, Yingtao Ding, Shiwei Ren
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With-Loop Scalarization – Merging Nested Array Operations
, 2004 Construction of complex array operations by composition of more basic ones allows for abstract and concise specifications of algorithms. Unfortunately, naive compilation of such specifications leads to creation of many temporary arrays at runtime and, consequently, to poor performance characteristics.
Clemens Grelck +2 more
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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 +2 more
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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 +2 more
openaire +1 more source
Constructions of Nested Orthogonal Arrays
Journal of Combinatorial Designs, 2013AbstractA 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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Robust adaptive beamforming in nested array
Signal Processing, 2015In 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 +2 more
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Array Gain of a Nested Array in Spatially Uncorrelated Noise
2021 OES China Ocean Acoustics (COA), 2021Spatial 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 +3 more
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