3 edition of Adaptive antenna arrays for satellite communications found in the catalog.
Adaptive antenna arrays for satellite communications
Inder J. Gupta
1985 by National Aeronautics and Space Administration, Lewis Research Center, National Technical Information Service, distributor in Cleveland, Ohio, [Springfield, Va .
Written in English
Microfiche. [Washington, D.C. : National Aeronautics and Space Administration, 1985] 2 microfiches.
|Statement||Inder J. Gupta, William G. Swarner, Eric K. Walton.|
|Series||NASA-CR -- 176162., NASA contractor report -- NASA CR-176162.|
|Contributions||Swarner, William G., Walton, Eric K., Lewis Research Center.|
|The Physical Object|
This is a brief of the development of a new multiple-array antenna, working on the GHz band. The main purpose of the project is to establish communications between a satellite constellation and the terrestrial station. Signals from the constellation is followed by the antenna by means of an adaptive . He has been active in the areas of automatic control, radar, and communications for many years and is presently associated with the Aerospace Corporation in El Segundo, CA as a Senior Engineering Specialist where he is engaged in work on adaptive arrays, GPS systems, and satellite communication systems. Author by: Hubregt J. Visser Languange: en Publisher by: John Wiley & Sons Format Available: PDF, ePub, Mobi Total Read: 81 Total Download: File Size: 44,6 Mb Description: Reflecting a growing interest in phased array antenna systems, stemming from radar, radio astronomy, mobile communications and satellite broadcasting, Array and Phased Array Antenna Basics introduces . International Conference on Recent Advances in Array Antenna and Array Signal Processing and Antenna Array Diagnosis scheduled on October , at Lisbon, Portugal is for the researchers, scientists, scholars, engineers, academic, scientific and university practitioners to present research activities that might want to attend events, meetings, seminars, congresses, workshops, summit, and.
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Its contents address the current and future trends of scenarios for employing adaptive antenna arrays in communication systems. The complete spectrum of concepts and operations of adaptive antenna arrays are discussed.
This book can serve as a quick reference for engineers, researchers, final year undergraduate and postgraduate : Hardcover. From the fundamentals of adaptive antennas and degrees of freedom for multiple beam antennas and phased arrays to a test bed Adaptive antenna arrays for satellite communications book phased array and the planar near field testing technique to arrays of horizontally polarized loop-fed slotted cylinder antennas and ultrawideband dipole arrays, this comprehensive book offers you invaluable, hands-on knowledge for your work in the by: Adaptive Array Systems is essential reading for senior undergraduate and postgraduate students and Adaptive antenna arrays for satellite communications book in the field of adaptive array systems.
It will also have instant appeal to engineers and designers in industry engaged in developing and deploying the : Hardcover. Adaptive Antennas and Phased Arrays for Radar and Communications Alan J. Fenn Based on the author's extensive research at MIT Lincoln Laboratory, this authoritative resource offers an in-depth description of adaptive array design, emphasizing the RF characteristics, mutual coupling among elements, and field testing methods.
Methods of Signal Processing for Adaptive Antenna Arrays (Signals and Communication Technology) [Titarenko, Larysa, Barkalov, Alexander] on *FREE* shipping on qualifying offers. Methods of Signal Processing for Adaptive Antenna Arrays (Signals and Communication Technology)Format: Hardcover.
modes. In most satellite communication systems, interference remains a problem for reliable reception of signals. Adaptive antenna array for satellite communication systems is better than omni directional antenna that radiate in all directions .
Hence for this we use adaptive antenna array that automatically steer the beam in the direction of. In the last fifty years, extensive studies have been carried out worldwide in the field of adaptive array systems. However, far from being a mature technology with little research left to tackle, there is seemingly unlimited scope to develop the fundamental characteristics and applications of adaptive antennas for future 3G and 4G mobile communications systems, ultra wideband wireless.
Adaptive beamforming for satellite communication with selective earth coverage and jammer nulling capability Abstract: An algorithm has been developed to control the antenna array beam pattern for satellite communication applications where the uplink received antenna is desired to provide beamforming capability for selective earth coverage and Cited by: His current research interests include reconfigurable antennas using electromagnetic bandgap and frequency selective surface structures, dielectric resonator antennas, metamaterial antennas, adaptive arrays, switched multi-beam antenna arrays, ultra-wideband antennas, microwave, and development for wireless communications systems.
Dominic Deslandes (Member, IEEE) received the degree in electrical engineering from the University of Sherbrooke, Sherbrooke, QC, Canada, inand the and Ph.D.
degrees in electrical engineering from the École Polytechnique de Montreal, Montreal, QC, Canada, in andrespectively. The importance of adaptive antenna array to track the satellite automatically is described in this paper.
The adaptive antenna array adjusts their pattern automatically to signal environment. The. This paper shows the development of a new multiple-array antenna, working on the GHz band. The main purpose of the project is to establish communications between a satellite constellation and the terrestrial station.
It consists of some triangular phased arrays of double circular patches, controlled by an electronic subsystem in order to obtain the desired main by: 6.
Abstract. This paper presents a discussion of the applications of adaptive array processing methods in mobile communication systems. A brief history of the development of adaptive arrays is presented together with a summary of current methodologies used for : L.
Griffiths. Adaptive antenna array is better for satellite communication systems as it has the ability to track the satellite automatically . Hence for t his reason we use adaptive antenna array that. mobile satellite communications had played a great role to fill the communication gaps.
The satellites can be tracked automatically by adaptive antenna array when it moves in its orbital plane.
In this thesis the methods that how the adaptive antenna array combats interferers is presented and simulated using MATLAB Size: 1MB. The GEODA is a conformal adaptive antenna array designed for MetOp satellite communications with specifications shown in Table 1. This antenna was conceived to receive signals in single circular polarization (Montesinos et al., ).Cited by: 9.
5 Linear Array OTA Measurement. 1MA_2e Rohde & Schwarz Millimeter-Wave Beamforming: Antenna Array Design Choices & Characterization 17 Figure Boresight Level of the Main Lobe of one single Element.
Figure 17 shows the swept 2D radiation pattern of one single element over the frequency range from 24 to 30 Size: 1MB. Abstract: Adaptive antenna arrays have become the system of choice for protecting Global Navigation Satellite Systems (GNSS) receivers in strong radio frequency interference environments.
GNSS receiver adaptive antenna arrays have small aperture (of the order of a wavelength) and few (e.g., less than 10) elements. In the near future, even smaller vehicles will be Cited by: ´Adaptive Antenna Arrays: Trends and Applications’ is a compilation of the works and insights of various key scientists and engineers who are involved in this area.
Its contents address the current and future trends of scenarios for employing adaptive antenna arrays in communication systems. Adaptive Antenna Arrays: Trends and Applications’ is a compilation of the works and insights of various key scientists and engineers who are involved in this area.
Its contents address the current Author: Sathish Chandran. New Antenna Array Architectures for Satellite Communications A conventional configuration takes up an area of cm 2 which is big compared to the radiating element and the sub-array.
The leading reference and text in the field for over a decade, Satellite Communications, has been revised, updated, and expanded to cover breakthroughs in global wireless applications, digital television, and Internet access via satellite.
Filled with worked examples and illustrations, the new edition offers a clear, state-of-the-art Cited by: ANTENNA ARRAYS AND BEAMFORMING Array beam forming techniques exist that can yield multiple, simultaneously available beams.
The beams can be made to have high gain and low sidelobes, or controlled beamwidth. Adaptive beam forming techniques dynamically adjust the array pattern to optimize some characteristic of the received Size: KB. Note: If you're looking for a free download links of Adaptive Antenna Arrays: Trends and Applications (Signals and Communication Technology) Pdf, epub, docx and torrent then this site is not for you.
only do ebook promotions online and we does not. This paper describes the utilization of antenna arrays at the base stations of mobile communication systems. Multiple antennas can provide a processing gain to increase the base station range and Author: Björn Ottersten.
The reception pattern of these antenna arrays is controlled via adaptive digital filters, which perform beamforming/null steering in satellite and interference directions. While the adaptive processing in these antenna arrays had been widely used for radar and communications applications, it was not initially understood how to optimize these.
Abstract: The GEODA-GRUA is one conformal adaptive antenna array designed for satellite communications. Operating at GHz with circular polarization, it is possible to track and communicate with several satellites at once being able to receive signals in full azimuth and within the range of 5° to broadside elevation thanks to its adaptive beam.
Adaptive antennas and phased arrays, with rapidly scanned beams or multiple beams, are commonly suggested for radar and communications systems in ground-based, airborne, and spaceborne applications that must function in the presence of jamming and other sources of interference.
uses adaptive array antennas the technology  , , . An antenna with adaptive array uses a set of elements connected such a way to form array. The combined signals of the array elements form switchable or movable pattern towards the path of preferred user.
Digital signal processing element in this antenna makes it an adaptive. In the last fifty years, extensive studies have been carried out worldwide in the field of adaptive array systems. However, far from being a mature technology with little research left to tackle, there is seemingly unlimited scope to develop the fundamental characteristics and applications of adaptive antennas for future 3G and 4G mobile communications systems, ultra wideband wireless and.
GEODA is a multiple planar array smart antenna that is being developed in order to receive and track several satellite signals simultaneously. GEODA antenna has an special structure that allows receiving signals from 5deg to broadside in elevation and deg for azimuth in the GHz working band.
Several arrays shape the antenna and work independently since they have their own complete receiver. A new adaptive antenna array architecture for low-earth-orbit satellite ground stations is being investigated.
These ground stations are intended to have no moving parts and could potentially be operated in populated areas, where terrestrial.
An adaptive array with the goal of suppressing interference is investigated. It is shown that the interference rejection capabilities of the antenna array depend upon its geometry. The concept of an interference environment is introduced, which enables optimization of an adaptive array based on the expected directions and power of the interference.
Adaptive Antennas and MIMO Systems for Mobile Communications.- Adaptive Antenna Algorithms.- The Spatial Dimension in Wireless Multicarrier Communications.- Constrained Adaptive Filters.- Wideband Interference Attenuation in Sensor Arrays.- Beamforming with Genetic Algorithms.- Sidelobe Control Using Optimization Methods in Adaptive Beamforming.-Price: $ Antenna arrays naturally constitute an essential part of a MIMO system.
There exists a large number of different array configurations. This is not our goal to go into details about antenna array theory, but it is interesting to highlight a few points related to antenna arrays.
A new adaptive antenna array architecture for low-earth-orbiting satellite ground stations is being investigated. These ground stations are intended to have no moving parts and could potentially be operated in populated areas, where terrestrial interference is likely.
Get this from a library. Adaptive antenna arrays for satellite communications: design and testing. [Inder J Gupta; William G Swarner; Eric K Walton; Lewis Research Center.]. ADAPTIVE ANTENNA ARRAYS FOR SATELLITE PERSONAL COMMUNICATION SYSTEMS by Keng-Jin Lian Committee Chairman: Timothy Pratt Department of Electrical Engineering ABSTRACT Since about the turn of the decade, several proposals have come forth for personal communication services implemented by means of multiple satellite systems.
These satellite. PROCEEDINGS OF THE IEEE, VOL. 55, NO, DECEMBER Adaptive Antenna Systems B. WIDROW, MEMBER, IEEE, P. MANTEY, MEMBER, IEEE, L. GRIFFITHS, STUDENT MEMBER, IEEE, AND B.
GOODE, STUDENT MEMBER, IEEE Abstruct-A system CoIlSisting of an antenna array and an adaptive processor CM perfonn filtering in both the space and the frequency domrirs. Fault-finding in antenna arrays. The antenna arrays used in sonar, radar and other communication applications contain several hundred radiating elements, so the failure of one or more elements is a reasonable scenario and must be addressed.
Element failure in antenna arrays destroys symmetry and causes unacceptable pattern by:. Smart antennas (also known as adaptive array antennas, digital antenna arrays, multiple antennas and, recently, MIMO) are antenna arrays with smart signal processing algorithms used to identify spatial signal signatures such as the direction of arrival (DOA) of the signal, and use them to calculate beamforming vectors which are used to track and locate the antenna beam on the mobile/target.array antenna for the experimental high data rate (Gigabit) communication satellite.
In Australia, a twelve-element land mobile terminal phased array antenna is designed for keeping constant tracking of the MobilesatTM satellite while the terminal is moving ; Phased Array .Antenna Arrays: A Computational Approach - Ebook written by Randy L.
Haupt. Read this book using Google Play Books app on your PC, android, iOS devices. Download for offline reading, highlight, bookmark or take notes while you read Antenna Arrays: A Computational Approach.