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Titlebook: Electronically Scanned Arrays (ESAs) and K-Space Gain Formulation; Roger A. Dana Book 2019 Springer Nature Switzerland AG 2019 RF Electron

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发表于 2025-3-21 16:09:45 | 显示全部楼层 |阅读模式
书目名称Electronically Scanned Arrays (ESAs) and K-Space Gain Formulation
编辑Roger A. Dana
视频video
概述Presents content author derived by necessity, when first asked to evaluate the performance of an electronically scanned array under design with imperfections.Enables readers to understand the firm the
图书封面Titlebook: Electronically Scanned Arrays (ESAs) and K-Space Gain Formulation;  Roger A. Dana Book 2019 Springer Nature Switzerland AG 2019 RF Electron
描述.This book fills in details that are often left out of modern books on the theory of antennas. The starting point is a discussion of some general principles that apply to all electronic systems and to antennas in particular. Just as time domain functions can be expanded in terms of sine waves using Fourier transforms, spatial domain functions can be expanded in terms of plane waves also using Fourier transforms, and K-space gain is the spatial Fourier transform of the aperture weighting function. Other topics discussed include the Discrete Fourier Transform (DFT) formulation of antenna gain and what is missing in this formulation, the effect of sky temperature on the often specified G/T ratio of antennas, sidelobe control using conventional and novel techniques, and ESA digital beamforming versus adaptive processing to limit interference.  .Presents content the author derived when first asked to evaluate the performance of an electronically scanned array under designwith manufacturing imperfections and design limitations;.Enables readers to understand the firm theoretical foundation of antenna gain  even when they must start from well-known formulations rather than first principles
出版日期Book 2019
关键词RF Electronic Systems and Antennas; RF Antennas and Circuits; Antenna gain; Phase Array Antenna; Digital
版次1
doihttps://doi.org/10.1007/978-3-030-04678-1
isbn_ebook978-3-030-04678-1
copyrightSpringer Nature Switzerland AG 2019
The information of publication is updating

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发表于 2025-3-21 20:33:02 | 显示全部楼层
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Sidelobe Control and Monopulse Weighting,o rotate one of the sidelobe planes relative to the other of a square array with elements turned off to form a parallelogram. Finally, weighting schemes for phase-comparison monopulse are described, including Bayliss weights and a simpler to implement scheme referred to as split-Taylor.
发表于 2025-3-22 07:12:24 | 显示全部楼层
https://doi.org/10.1007/978-3-319-09822-7mmers are distributed symmetrically about the desired signal, something that can be achieved in MVDR by simply modifying the subarray to subarray covariance matrix of the interference used to compute subarray weights.
发表于 2025-3-22 09:02:47 | 显示全部楼层
Digital Beamforming and Adaptive Processing,mmers are distributed symmetrically about the desired signal, something that can be achieved in MVDR by simply modifying the subarray to subarray covariance matrix of the interference used to compute subarray weights.
发表于 2025-3-22 13:33:54 | 显示全部楼层
ith imperfections.Enables readers to understand the firm the.This book fills in details that are often left out of modern books on the theory of antennas. The starting point is a discussion of some general principles that apply to all electronic systems and to antennas in particular. Just as time do
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Some Basic Principles of RF Electronic Systems and Antennas,age integration; (4) radio performance goes as one over the square-root of the SNR. The keys to understanding the SNR in a receiver are Friis’ Link Margin Equation and Friis’ formula for the noise factor. These relationships are explained because they should be well-understood by electronic systems engineers.
发表于 2025-3-23 03:47:05 | 显示全部楼层
https://doi.org/10.1007/978-981-19-4559-5well’s equations (or more specifically, of the Helmholtz wave equation). This is a key result since the k-space gain formulation is based on two-dimensional (2-D) expansions of the ESA spatial weighting function into the summation of plane waves, each with its own amplitude and phase, through continuous or discrete 2-D Fourier transforms.
发表于 2025-3-23 09:32:24 | 显示全部楼层
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