linear arrays
INVESTIGATIONS ON THINNING AND THICKENING LINEAR ARRAYS
... investigate linear arrays with gradual thickening as well as gradual ...different arrays and the radiation patterns are presented for different ...
9
Assessment of MVDR Adaptive Beamforming algorithm in uniform linear arrays, uniform rectangular arrays and uniform circular arrays configurations
... uniform linear arrays (ULAs), uniform rectangular arrays (URAs) and uniform circular arrays (UCAs) with uniform distance between the adjacent elements of d ...antenna arrays consisting ...
7
Surface Plasmon Resonance of a Few Particles Linear Arrays
... tracted significant attention in recent years particularly enhancement of the electric field in spherical nanoparti- cles has been reported emphasizing the possible applica- tions [17]. We present a study of the electric ...
7
Optimal Design of Nonuniform Linear Arrays in Cellular Systems by Out of Cell Interference Minimization
... In this paper, we tackled the problem of optimal design of linear arrays in a cellular systems under the assumption of Gaussian interference. Two design problems are considered: maximization of the ergodic ...
9
Two dimensional DOA estimation of coherent sources using two parallel uniform linear arrays
... realizes decorrelation by reconstructing a Toeplitz matrix. With the help of three correlation matrices, Wang et al. [12] have presented a 2-D DOA estimation method. Recently, Nie et al. [13] have introduced an efficient ...
9
Design of Time-Modulated Linear Arrays with a Multi-Objective Optimization Approach
... time-modulated linear antenna arrays with ultra low maximum Side Lobe Level (SLL), maximum Side Band Level (SBL) and main lobe Beam Width between the First Nulls ...for linear array synthesis such as ...
25
Development a New Technique Based on Least Square Method to Synthesize the Pattern of Equally Space Linear Arrays
... a linear combination of the samples, which provides low ...well-known arrays and the obtained results are reported and compared with those of classical ...spaced linear arrays ...
7
Optimization of Array Factor in Linear Arrays Using Modified Genetic Algorithm
... similar to a DNA, genes are like a chain while in this process a chromosome makes a loop where genes are located around this loop. When mating, a loop has not a beginning or an end and hence crossover becomes independent ...
11
Nonuniformly Spaced Linear Array Design for the Specified Beamwidth/Sidelobe Level or Specified Directivity/Sidelobe Level with Coupling Consideration
... -elements linear arrays by employing unequal ...a linear array with uniform excitation, 2) grating lobe suppression of the linear array by the use of the Anger function and 3) azimuthal ...
25
Massive Multiuser Multiple-Input and Multiple-Output Wireless Communication System on Antenna Array
... two linear arrays, the other symmetric layout of the proposed antenna unit is the ability to eliminate the mutual coupling between the horizontal and vertical polarization ...
5
Comparative Analysis of Linear Antenna Arrays
... uniform linear arrays are those in which the elements are fed with the currents of unequal ...uniform arrays are binomial and Dolph-Tchebyscheff arrays. Binomial arrays are considered ...
5
A Study of AM and FM Signal Reception of Time Modulated Linear Antenna Arrays
... Abstract—The amplitude modulation (AM) and frequency modula- tion (FM) signal transmission of time modulated linear arrays (TMLA) is studied in this paper. The signal with a certain bandwidth received by a ...
11
Optimal Synthesis of Sum and Difference Patterns with Arbitrary Sidelobes
... reconfigurable linear arrays radiating sum and difference patterns via uniformly spaced arrays with a number of common excitations is presented and ...a linear array with periodic spacing of ...
6
DOA Estimation with Sparse Array Under Unknown Mutual Coupling
... In this paper, we employ two different uniform linear arrays (ULAs) to constitute a sparse linear array, which can be seen as a special two-level nested array [21–23]. The element spacing of the ...
7
Vol 3, No 4 (2015)
... than linear arrays [14,15] as they have larger number of control parameters, allowing the obtainment of more symmetrical patterns with smaller side lobes and facilitating the movement of the main beam ...
5
Diagnostic ultrasound probes: a typology and overview of technologies
... are linear, phased and convex arrays (Figure 1). Linear Arrays (LAs) are flat and provide rectangular or trapezoidal image format with a field of view that is roughly equal to the probe length ...
5
An Improved Taguchi's Method for Electromagnetic Applications
... of linear arrays and the designs of an E-shaped antenna and an ultra-wide band monopole, are conducted to investigate the performance of the proposed method, and the results are compared with those of ...
8
Design of Linear and Circular Antenna Arrays Using Cuckoo Optimization Algorithm
... This paper illustrated the use of COA algorithm in the pattern synthesis of antenna arrays. COA is a new optimization algorithm which is inspired by lifestyle of a bird called Cuckoo. Special characteristics of ...
11
Polarimetric Vector Receivers for CDMA Multipath Signals
... antenna arrays in CDMA systems has been widely inves- tigated in wireless communications, due to the significant gain of capacity relative to a single antenna ...of linear arrays of single- or ...
120
The exterior letter advantage in linear multi letter arrays
... use linear arrays of ...in linear letter arrays, completely disappeared when single letter targets were embedded in arrays of ...
235