標題: Titlebook: General Theory of Light Propagation and Imaging Through the Atmosphere; T. Stewart McKechnie Book 2022Latest edition The Editor(s) (if app [打印本頁] 作者: 建筑物的正面 時間: 2025-3-21 17:18
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作者: 演講 時間: 2025-3-21 23:41 作者: 彎腰 時間: 2025-3-22 00:41
Rajeev Kumar Jaiman,Vaibhav Joshirates into the atmospheric MTF. For any atmospheric path, the latter function determines the resolution that can be obtained when observing over that path. The development of scintillation is examined in the space below the layer, the extent to which it occurs depends crucially on the size of the turbulence structures in the layer.作者: flaunt 時間: 2025-3-22 07:51
https://doi.org/10.1007/3-540-31103-3 the autocorrelation function of that fluctuation, ρ(ξ, η). These two measures provide the essential statistical information about turbulence structure in the path. They also provide the essential statistical properties of the complex amplitudes and intensities in star images formed by telescopes observing over the path.作者: Monotonous 時間: 2025-3-22 10:09 作者: 小淡水魚 時間: 2025-3-22 13:30 作者: 小淡水魚 時間: 2025-3-22 17:56
https://doi.org/10.1007/978-3-7091-0947-2 by .; at near-IR wavelengths resolution is typically?~0.1 arcsec. Though image cores generally appear over a wide range of wavelengths, one particular wavelength—referred to as the optimum wavelength—gives rise to maximum irradiance at core center. This wavelength has obvious significance to HEL weapon systems.作者: BOON 時間: 2025-3-22 23:27
Computer Modeling of Atherosclerosis, of the telescope; speckle size is not affected by aberrations. In polychromatic speckle, individual speckles are chromatically stretched into rainbow-like features by an amount proportional to the feature’s radial distance from image center. Stellar speckle is a form of image noise; various speckle reduction strategies are analyzed.作者: etidronate 時間: 2025-3-23 04:53 作者: heckle 時間: 2025-3-23 09:29 作者: essential-fats 時間: 2025-3-23 12:16 作者: 沉著 時間: 2025-3-23 16:02 作者: blister 時間: 2025-3-23 20:08 作者: ligature 時間: 2025-3-23 23:05 作者: 過多 時間: 2025-3-24 06:19 作者: Repatriate 時間: 2025-3-24 10:22
Statistical Properties of Stellar Speckle Patterns, of the telescope; speckle size is not affected by aberrations. In polychromatic speckle, individual speckles are chromatically stretched into rainbow-like features by an amount proportional to the feature’s radial distance from image center. Stellar speckle is a form of image noise; various speckle reduction strategies are analyzed.作者: Jacket 時間: 2025-3-24 12:17 作者: 高興去去 時間: 2025-3-24 15:09 作者: Dri727 時間: 2025-3-24 22:35
2363-5096 cal notations at the end of each chapter.Offers methods for .This 2nd edition lays out an updated version of the general theory of light propagation and imaging through Earth’s turbulent atmosphere initially developed in the late ‘70s and ‘80s, with additional applications in the areas of laser comm作者: 共和國 時間: 2025-3-24 23:30 作者: 充滿人 時間: 2025-3-25 07:02 作者: 背叛者 時間: 2025-3-25 08:57
978-3-030-98830-2The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl作者: 廢止 時間: 2025-3-25 14:48
General Theory of Light Propagation and Imaging Through the Atmosphere978-3-030-98828-9Series ISSN 2363-5096 Series E-ISSN 2363-510X 作者: 背信 時間: 2025-3-25 18:48 作者: Irascible 時間: 2025-3-25 23:42 作者: maroon 時間: 2025-3-26 02:25
Empirical Methods and Coarse-Graining,orce began tentatively confirming that much higher resolution levels were indeed possible using large ground-based telescopes. Star image cores measuring 0.1-arcsecond across were recorded at the near-IR wavelength, 2?μm. (Though 0.05-arcsecond image cores were also anticipated at wavelength, 1?μm, 作者: CRUDE 時間: 2025-3-26 04:49
Computational Materials System Designmosphere: refractive index. Quantities used to describe light waves are introduced, such as the complex amplitude and intensity; and Maxwell’s electromagnetic equations are set out along with their solution for light propagating in an inhomogeneous medium— the atmosphere. Because atmospheric refract作者: Perceive 時間: 2025-3-26 09:12 作者: 障礙 時間: 2025-3-26 15:10 作者: crease 時間: 2025-3-26 17:49
https://doi.org/10.1007/3-540-31103-3s from the previous chapter for scattering by thin atmospheric layers. Using a coherency matrix approach for the refractive index field, the crucial result is established that extended atmospheric paths can be represented by finite stacks of mutually uncorrelated random phase screens. By analyticall作者: 脆弱吧 時間: 2025-3-26 22:53 作者: Semblance 時間: 2025-3-27 05:03 作者: 壓迫 時間: 2025-3-27 08:11
Michael D. Rucki,Gregory R. Millers the Fourier transform of the product of the atmospheric MTF and the telescope OTF. The seeing disc star images delivered by large (>1?m) telescopes typically measure about 1-arcsec across which, sadly, is about one or two orders of magnitude broader than would be delivered by diffraction-limited v作者: 帽子 時間: 2025-3-27 09:45 作者: 火海 時間: 2025-3-27 16:17 作者: Kindle 時間: 2025-3-27 19:21
https://doi.org/10.1007/978-1-4020-3953-9lence structure functions. To illustrate the crucial importance of turbulence structure size on star image appearance, two wavefront realizations are generated, one where the outer scale is less than one meter, the other where the outer scale is three times larger. Instantaneous images are then calc作者: 妨礙 時間: 2025-3-27 23:12
Comparative Studies of Tornado-Like Vorticesuations that describe these images may not be transparent to all readers, in this chapter we simplify the mathematics by approximating star images by best-fitting Gaussian functions. Single Gaussian functions are used to approximate core-only or halo-only images; two summed Gaussian functions are us作者: 大吃大喝 時間: 2025-3-28 03:13 作者: 阻擋 時間: 2025-3-28 09:57
Elementary Theory of Del Pezzo Surfaces,h properties identical to those of actual images obtained by large telescopes in the field. The imaging optic used in the simulator—typically 5?mm in diameter—is designed to provide a suitably scaled replica of the telescope point-spread function. Scaling procedures are also described for designing 作者: 松雞 時間: 2025-3-28 13:21
https://doi.org/10.1007/978-94-017-8645-4apon systems. Collimated beams are treated as well as beams that converge to a focus in the atmosphere. For terrestrial laser communication systems, laser beam quality is influenced by atmospheric turbulence and the aberrations of the beam-projection telescope. For HEL beams, other influences includ作者: ADOPT 時間: 2025-3-28 15:17 作者: 咆哮 時間: 2025-3-28 21:19 作者: 無底 時間: 2025-3-29 02:22 作者: MIME 時間: 2025-3-29 04:04
Empirical Methods and Coarse-Graining,doned within the astronomical community in favor of much tighter prescriptions. The result was hugely improved resolution. Plainly, an uncomfortably large gap had developed between Kolmogorov understanding and actual reality. The new theory smoothly closes that gap. In addition to providing a more c作者: Wordlist 時間: 2025-3-29 10:38 作者: 去掉 時間: 2025-3-29 11:35
Junzhi Cui,X. G. Yu,Fei Han,Yan Yuay, marginal ray). The amplitude and intensity point–spread functions of telescopes are defined. Linear superposition, convolution, isoplanaticity, and coherence are described for dealing with extended objects.作者: iodides 時間: 2025-3-29 19:09
Comparative Studies of Tornado-Like Vorticeshe two Gaussian functions, A., and their respective 1/e half-widths, B. and B.. Once values have been obtained for these three quantities, it is a simple matter to calculate the atmospheric seeing parameters, σ and ρ(ξ, η), and the telescope Strehl intensity. If adaptive optics is used, . and .(ξ, η作者: ALT 時間: 2025-3-29 21:26
V. Baskaran,G. F. Eisa,W. R. Wilcoximages are shown for the Keck II instrument. Computer-generated binary star images are also shown for the future 39?m E-ELT instrument for various wavelengths in the range, 0.5–10?μm, with <10 mas resolution anticipated routinely in the optimum wavelength region.作者: LARK 時間: 2025-3-30 02:52
https://doi.org/10.1007/978-94-017-8645-4reby maximizing system lethality and lethality range. Choice of outrider HEL wavelengths lying far from the optimum region can catastrophically reduce system performance, potentially dooming the system to failure from the outset.作者: indigenous 時間: 2025-3-30 05:08
Adversarial Planning in Networkssystems. By using star image cores as reference features for image stabilization and AO corrections (as opposed to the less stable light energy centroids) the sky coverage fraction provided by the limited number of suitably bright natural reference stars in the sky could expand by a factor in excess作者: 減至最低 時間: 2025-3-30 09:29
Rovibrational Excitation by Electron Impactd useful to the broad majority of ELT and other large telescope users, some of whom may have little or no background in statistical optics, physical optics Fourier optics, etc. The principles and disciplines of these various branches of physics (and the associated mathematics) are smoothly and painl作者: 先鋒派 時間: 2025-3-30 15:34
History of the Telescope and Its Remarkable Contribution to Scientific Discovery (and the 400-Year ly Large Telescopes (ELTs) and with continuing advances anticipated in Adaptive Optics (AO), when first light is achieved with these prodigious instruments in the next few years, we will surely enter a new golden age of the telescope. The images harvested by these instruments may turn out no less ep作者: cocoon 時間: 2025-3-30 18:31
Introduction,doned within the astronomical community in favor of much tighter prescriptions. The result was hugely improved resolution. Plainly, an uncomfortably large gap had developed between Kolmogorov understanding and actual reality. The new theory smoothly closes that gap. In addition to providing a more c作者: 我沒有強迫 時間: 2025-3-30 23:43 作者: 厭惡 時間: 2025-3-31 04:45 作者: 混合 時間: 2025-3-31 05:44 作者: OATH 時間: 2025-3-31 09:45
Telescope Resolution and Optical Tolerance Specifications,images are shown for the Keck II instrument. Computer-generated binary star images are also shown for the future 39?m E-ELT instrument for various wavelengths in the range, 0.5–10?μm, with <10 mas resolution anticipated routinely in the optimum wavelength region.作者: 高調(diào) 時間: 2025-3-31 13:32
Laser Beam Propagation and Path Characterization,reby maximizing system lethality and lethality range. Choice of outrider HEL wavelengths lying far from the optimum region can catastrophically reduce system performance, potentially dooming the system to failure from the outset.作者: 似少年 時間: 2025-3-31 18:53
Atmospheric Isoplanatic Angle,systems. By using star image cores as reference features for image stabilization and AO corrections (as opposed to the less stable light energy centroids) the sky coverage fraction provided by the limited number of suitably bright natural reference stars in the sky could expand by a factor in excess
