Results 11 to 20 of about 457,797 (282)
Nested perfect toroidal arrays
CoRR, 2023 We introduce two-dimensional toroidal arrays that are a variant of the de Bruijn tori. We call them nested perfect toroidal arrays. Instead of asking that every array of a given size has exactly one occurrence, we partition the positions in congruence classes and we ask exactly one occurrence in each congruence class.
Verónica Becher, Olivier Carton
openaire +4 more sources
On the existence of nested orthogonal arrays
Discrete Mathematics, 2008 An orthogonal array \(\text{OA}(N,k,s,g)\) has \(N\) rows, \(k\) columns, \(s\) symbols, and strength \(g\) if it is an \(N \times k\) array with entries from an \(s\)-set in which every possible combination of symbols appear equally often as rows in every \(N \times g\) subarray.
Rahul Mukerjee +2 more
openaire +2 more sources
IEEE Transactions on Information TheoryzbMATH Open Web Interface contents unavailable due to conflicting licenses.
Verónica Becher, Olivier Carton
openaire +4 more sources
Sensors, 2023 This paper mainly investigates the problem of direction of arrival (DOA) estimation for a monostatic MIMO radar. Specifically, the proposed array, which is called a nested–nested sparse array (NNSA), is structurally composed of two nested subarrays, a NA
Ye Chen +3 more
doaj +2 more sources
An optimizing nested MIMO array with hole-free difference coarray
MATEC Web of Conferences, 2018 According to the newly proposed nested MIMO (Multiple-Input Multiple-Input Multiple Output Multiple Array) array design method, we propose to replace the traditional nested array into an optimizing nested array, ie, to optimizing nested MIMO array design.
Liu Qiaoge +5 more
doaj +3 more sources
Broadband DOA Estimation Based on Nested Arrays [PDF]
International Journal of Antennas and Propagation, 2015 Direction of arrival (DOA) estimation is a crucial problem in electronic reconnaissance. A novel broadband DOA estimation method utilizing nested arrays is devised in this paper, which is capable of estimating the frequencies and DOAs of multiple ...
Zhi-bo Shen +4 more
doaj +2 more sources
International Journal of Antennas and Propagation, 2019 Nested arrays are sparse arrays composed of subarrays with nonuniform sensor spacing. Compared with traditional uniform arrays, nested arrays have more degree of freedoms (DOFs) and larger apertures.
Tao Wu +4 more
doaj +2 more sources
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
openaire +3 more sources
Review on Nested Array Design Research [PDF]
Hangkong bingqiArray signal processing is an important branch of signal processing, which is widely used in radar, sonar and wireless communication. Direction of arrival estimation, as one of its key applications, traditionally relies on the layout of uniform linear ...
Mao Yanyuan, Ma Wanyu, Si Weijian
doaj +2 more sources
IEEE AccessMutual coupling severely impact Direction of Arrival (DOA) estimation, and the existence of mutual coupling can lead to significant errors in the received signal model of the array. Using algorithms to reduce it is an effective approach.
Shun He, Nan Sun, Zhiwei Yang, Le Qin
doaj +2 more sources