Search engine for discovering works of Art, research articles, and books related to Art and Culture
ShareThis
Javascript must be enabled to continue!

Modified Dolph‐Chebyshev Arrays

View through CrossRef
A method is presented to synthesize linear array patterns in which the side lobes decay very rapidly on either side of the main beam and at the same time exhibit, very closely, the optimum property of Dolph‐Chebyshev patterns. When compared with Dolph‐Chebyshev arrays having an equal number of elements, the side lobes of the modified arrays are considerably lower, the gain is approximately the same, and there is a small increase in the width of the main beam. For larger arrays, the increase in the beam width is negligible. In the cases where it is difficult to realize practical Dolph‐Chebyshev arrays, modified arrays appear to be more practical. Some specific examples are given.
American Geophysical Union (AGU)
Title: Modified Dolph‐Chebyshev Arrays
Description:
A method is presented to synthesize linear array patterns in which the side lobes decay very rapidly on either side of the main beam and at the same time exhibit, very closely, the optimum property of Dolph‐Chebyshev patterns.
When compared with Dolph‐Chebyshev arrays having an equal number of elements, the side lobes of the modified arrays are considerably lower, the gain is approximately the same, and there is a small increase in the width of the main beam.
For larger arrays, the increase in the beam width is negligible.
In the cases where it is difficult to realize practical Dolph‐Chebyshev arrays, modified arrays appear to be more practical.
Some specific examples are given.

Related Results

Time-Splitting Chebyshev-Spectral Method for the Schrödinger Equation in the Semiclassical Regime with Zero Far-Field Boundary Conditions
Time-Splitting Chebyshev-Spectral Method for the Schrödinger Equation in the Semiclassical Regime with Zero Far-Field Boundary Conditions
Semiclassical limit of Schrödinger equation with zero far-field boundary conditions is investigated by the time-splitting Chebyshev-spectral method. The numerical results of the po...
Generalized Jacobi Chebyshev Wavelet Approximation
Generalized Jacobi Chebyshev Wavelet Approximation
General Background: Wavelet approximations are fundamental in numerical analysis and signal processing, with classical orthogonal polynomials like Jacobi and Chebyshev serving as k...
Effectiveness of Wide Marine Seismic Source Arrays
Effectiveness of Wide Marine Seismic Source Arrays
Abstract The use of wide source arrays in marine seismic surveys has become a topic of interest in the seismic industry. Although the primary motivation for wide ...
Dolph algebras and Dolph groups
Dolph algebras and Dolph groups
A finite Hopf crossed product whose base ring is a finite field will be called a Dolph algebra, and the corresponding group of units will be called a Dolph group. Assuming known th...
Assessing Array-Type Differences in Cochlear Implant Users Using the Panoramic ECAP Method
Assessing Array-Type Differences in Cochlear Implant Users Using the Panoramic ECAP Method
OBJECTIVES: Cochlear-implant companies manufacture devices with different electrode array types. Some arrays have a straight geometry designed for minimal neuronal trauma, while ot...
Self-Standing 3D Thin Film Cathodes for Micobatteries
Self-Standing 3D Thin Film Cathodes for Micobatteries
While the microelectronic industry is advancing at a rapid pace with smaller and smaller devices, the implementation of microelectro-mechanical systems (MEMS) on the market strongl...

Back to Top