作者: 易碎 時間: 2025-3-21 22:37 作者: 啟發(fā) 時間: 2025-3-22 01:25
https://doi.org/10.1007/978-1-4612-1356-7 or spherical one) allow wide angle scanning without (or, for all practical purposes, without) a decrease in directivity [133]. The formation of such highly directivite radiation patterns (or reception) with the aid of such arrays is an extremely complex problem. It is even more difficult to perform作者: 誤傳 時間: 2025-3-22 05:10 作者: Bone-Scan 時間: 2025-3-22 09:20 作者: Chivalrous 時間: 2025-3-22 14:41
https://doi.org/10.1007/978-0-387-71762-3 processor acting as a precision analog type computing device is quite sensitive to the influence of various distorting factors, particularly due to the shortness of the optical carrier wavelength (about 1 μm) and to the inhomogeneities of the same order [1, 4, 8, 177]. In this case, along with the 作者: Chivalrous 時間: 2025-3-22 17:23 作者: RENIN 時間: 2025-3-22 22:00 作者: Cholesterol 時間: 2025-3-23 04:02 作者: 種族被根除 時間: 2025-3-23 08:40
R. E. Cromwell,D. H. L. Olson,D. G. FournierIn this chapter we shall discuss some coherent optical processors for electrooptical array antennas which have different practical capabilities:作者: Occlusion 時間: 2025-3-23 10:38 作者: Fillet,Filet 時間: 2025-3-23 16:01
Coherent Optical Processors for Electrooptical Array Antennas. Examples. Components. Research,In this chapter we shall discuss some coherent optical processors for electrooptical array antennas which have different practical capabilities:作者: 移動 時間: 2025-3-23 19:20
978-1-4612-8120-7Springer-Verlag New York, Inc. 1989作者: animated 時間: 2025-3-23 23:05 作者: obnoxious 時間: 2025-3-24 02:21 作者: 假裝是我 時間: 2025-3-24 08:54
Array Antennas with Coherent Optical Signal Processing,lized block diagram of an array antenna which forms its radiation pattern by coherent optical methods. We will discuss different approaches for analyzing these systems and examine several ways of constructing electrooptical array antennas using various input devices to a coherent optical space—time 作者: Enrage 時間: 2025-3-24 13:15 作者: PTCA635 時間: 2025-3-24 18:09 作者: Sputum 時間: 2025-3-24 19:27
Discreteness Effects in Planar and Nonplanar Electrooptical Antenna Arrays, a model of the continuous array aperture and the modeling medium of the space—time light modulator. This approach enabled us to analyze the general laws governing the formation of the spatial and spectral characteristics of electrooptical arrays, using the methods of coherent optics. The discretene作者: Vertebra 時間: 2025-3-25 02:45 作者: 現(xiàn)代 時間: 2025-3-25 05:24 作者: Osteoarthritis 時間: 2025-3-25 08:48
Electrooptical Array Sensitivity,perfections at the actual electrooptical array output, noise (time) is unavoidable. This noise, in this case, is composed of thermal and quantum noise [187, 188]. The latter condition is due to the fact that electrooptical array antennas belong to both the radio (electro) and the optical ranges wher作者: 鉗子 時間: 2025-3-25 13:40
Conclusions. Trends in Electrooptical Array Antenna Theory and Development,d electronic (and this includes computers) hardware (see Fig. 1.1). Serious structural-technological problems have arisen during the development of such devices. Here, there are a large number of problems, including processor element configuration, decreasing the effect of mechanical vibration and t作者: 混合物 時間: 2025-3-25 19:04
An introduction to design patterns,ordinates of which are uniquely connected by some addressing law, for example (1.3). A similar model makes it possible to analyze fully and graphically the basic antenna patterns of planar arrays taking into account specific laws of the displacement of the array elements and the space—time light mod作者: 詼諧 時間: 2025-3-25 20:46 作者: bifurcate 時間: 2025-3-26 03:56 作者: 雪白 時間: 2025-3-26 05:10
Katharina Verrière,Larena Sch?fere signal received by the array at which the power or the voltage of the signal at the output of the output device reaches the set value or the required SNR [187]. This relation is, in turn, defined by the accuracy of signal reproduction or by qualitative indicators of its detection or by the probabi作者: infringe 時間: 2025-3-26 12:10 作者: 狂怒 時間: 2025-3-26 13:06
Formation of Planar Array Antenna Patterns,ordinates of which are uniquely connected by some addressing law, for example (1.3). A similar model makes it possible to analyze fully and graphically the basic antenna patterns of planar arrays taking into account specific laws of the displacement of the array elements and the space—time light mod作者: 對待 時間: 2025-3-26 18:53 作者: CRAFT 時間: 2025-3-26 22:50 作者: Compass 時間: 2025-3-27 04:49 作者: 有其法作用 時間: 2025-3-27 07:44 作者: 離開真充足 時間: 2025-3-27 12:36
y of the power, resolution, and range characteristics of arrays with various coherent opti- cal processors. The practical applications of these systems and methods for building them using contemporary optoelectronics have also been studied.978-1-4612-8120-7978-1-4612-3484-5作者: landmark 時間: 2025-3-27 17:34
xten- sively. These systems require the development of new, more efficient systems. One of the major ways to improve radar and sonar systems is to use multichannel systems, the most promising of which employ space-time signal processing. In the last few years the intensive growth in electronics, inf作者: 損壞 時間: 2025-3-27 18:19
Interactive Multimedia Learninging these systems and examine several ways of constructing electrooptical array antennas using various input devices to a coherent optical space—time signal processor. We will discuss the components of an electrooptical array antenna.作者: 背叛者 時間: 2025-3-27 22:08 作者: muscle-fibers 時間: 2025-3-28 03:34 作者: 執(zhí) 時間: 2025-3-28 09:43
https://doi.org/10.1007/978-0-387-71762-3time) various natural noises at the output of the electrooptical array antenna. Apparently, these circumstances degrade the pattern- and spectrum-forming properties of real electrooptical arrays. Such abilities as the resolving power, gain, the side lobe level, dynamic range, sensitivity, etc. are affected.作者: Macronutrients 時間: 2025-3-28 13:43 作者: Atmosphere 時間: 2025-3-28 16:17
Book 1989ly. These systems require the development of new, more efficient systems. One of the major ways to improve radar and sonar systems is to use multichannel systems, the most promising of which employ space-time signal processing. In the last few years the intensive growth in electronics, informa- tion作者: Conflict 時間: 2025-3-28 20:18 作者: ethereal 時間: 2025-3-29 01:34 作者: Bureaucracy 時間: 2025-3-29 03:18
Conclusions. Trends in Electrooptical Array Antenna Theory and Development,ch devices. Here, there are a large number of problems, including processor element configuration, decreasing the effect of mechanical vibration and thermal influences, decreasing the weight and size and so on. Figures 10.1 and 10.2 give some definite ideas on possible configurations for array antenna coherent optical processors.作者: DIKE 時間: 2025-3-29 10:37 作者: minimal 時間: 2025-3-29 11:31 作者: 協(xié)迫 時間: 2025-3-29 16:47 作者: Cardioversion 時間: 2025-3-29 22:53
Introduction,ed by configurationally determined operator positions. In the course of this, various descriptive issues of Hungarian syntax will be analyzed, and various theoritical questions concerning the existence and nature of non-configurational languages will be addressed.作者: Introvert 時間: 2025-3-30 00:50
Salvador Elías Venegas-Andracats well known to many people. The popularity of labneh, a concentrated fermented milk made by specific yogurt cultures named . subsp. . and . have grown widely due to their nutritional advantages and storage qualities, leading to their increased economic significance. Ayran is a yogurt-based, salty 作者: 摘要記錄 時間: 2025-3-30 06:08
