Global Positioning

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Global Positioning System

Author : United States. General Accounting Office
ISBN : UIUC:30112033977361
Genre : Global Positioning System
File Size : 54.16 MB
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Category: Global Positioning System

The Global Positioning System

Author : United States
ISBN : PSU:000022380227
Genre : Artificial satellites in navigation
File Size : 86.7 MB
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Category: Artificial satellites in navigation

National Civilian Gps Services

Author :
ISBN : IND:30000078866526
Genre : Artificial satellites in navigation
File Size : 86.20 MB
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Category: Artificial satellites in navigation

Global Positioning System

Author : Bradford W. Parkinson
ISBN : 1600864198
Genre : Artificial satellites in navigation
File Size : 34.75 MB
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Category: Artificial satellites in navigation

Introduction To Gps

Author : Ahmed El-Rabbany
ISBN : 1580531830
Genre : Science
File Size : 35.61 MB
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If you're looking for an up-to-date, easy-to-understand treatment of the GPS (Global Positioning System), this one-of-a-kind resource offers you the knowledge you need for your work, without bogging you down with advanced mathematics. It addresses all aspects of the GPS, emphasizes GPS applications, examines the GPS signal structure, and covers the key types of measurement being utilized in the field today.
Category: Science

Quantic Global Positioning System Timing Receiver Live Static Test

Author :
ISBN : OCLC:946120919
Genre :
File Size : 75.28 MB
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The GPS Program Offices, Los Angeles Air Force Base, California, has established a Center of Expertise (COE) comprised of several agencies, each providing unique GPS test capabilities for the purpose of developing a Commercial Receiver Test Program (CRTP). The Responsible Test Organization (RTO) for the COE is the 746th Test Group, 46th Guidance Test Squadron, Holloman Air Force Base, New Mexico. The Naval Research Laboratory (NRL) has been designed as a COE with the responsibility of testing the time output characteristics and accuracy of the commercial receivers. The NRL clock testing facility has time traceable to the U.S. Naval Observatory and the procedure used are taken from the CORE INS/GR/EGI TEST PLAN prepared by RTO.

Global Positioning Systems In Geosciences

Author : Stelios P. Mertikas
ISBN : STANFORD:36105016425121
Genre : Artificial satellites in earth sciences
File Size : 50.63 MB
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Category: Artificial satellites in earth sciences

Global Positioning Systems

Author : Lawrence W. Lass
ISBN : UIUC:30112048296005
Genre : Global Positioning System
File Size : 47.49 MB
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Category: Global Positioning System

Global Positioning System Studies Of Equatorial Scintillations

Author : Theodore Lyman Beach
ISBN : CORNELL:31924083951370
Genre :
File Size : 72.51 MB
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The Global Positioning System (GPS) satellites provide an extensive array of beacon signals for probing the ionosphere. Studies of ionospheric propagation at the GPS L band frequencies (1.2 and 1.6 GHz) are of great interest for proposed communications satellite systems as well as for GPS itself. This dissertation describes the development and use of a specialized GPS receiver which measures signal strength at a high data rate (50 samples per second). The instrument monitors amplitude scintillations and the present application studies scintillations produced by propagation through equatorial ionospheric irregularities, particularly equatorial spread F. Several observations of GPS scintillations from stations near the geomagnetic equator (primarily Ancon, Peru) during equinox seasons are presented. Studies performed include drift measurements by correlation between spaced receivers and multiple instrument studies encompassing GPS scintillations, 50 MHz radar observations (at the Jicamarca observatory) and 630 nm airglow images (from Arequipa, Peru). Observations of possible diffraction patterns generated by sharply defined differences in ionospheric electron density are also presented. Modeling suggests that the conditions required to obtain such patterns are gradients with widths of $\sim$16 meters and a change in E or F region total electron content (TEC) of about $1\times10\sp{16}$ electrons per m$\sp2,$ narrower and steeper than previous VHF observations of similar patterns imply. Finally, comparisons between TEC fluctuations, as measured by a dual frequency GPS receiver, and GPS amplitude scintillations are made for co-located receivers at Ancon. Such comparisons are important because of the availability of global networks of GPS receivers which can be used to study TEC fluctuations at low sample rates (typically 30 seconds per sample). Several researchers currently conduct irregularity studies using the low rate TEC data from these networks, but the relationship between measures of low frequency TEC fluctuations and L band scintillations has not been investigated. This study concludes that, for the same line of sight, TEC fluctuations and scintillations are often related and that relationship is explored here using a simple, one dimensional phase screen model.

Global Positioning For The Twenty First Century

Author : Leonard C. Moffitt
ISBN : UCAL:B5118316
Genre : History
File Size : 77.28 MB
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On the worldwide, often clandestine, frequently illegal dissemination of VCRs and cassettes. The authors discuss futile attempts at control and conclude even the most severe of these to be almost totally ineffective. The book concludes that, at least for the time being, a sort of de facto global media decentralization has been effected for the first time in history. Strategy, in a global political sense, refers to the direction of diplomacy and armed force toward political ends in international relations. The focus of this volume, however, is on the perception of relations rather than relationships themselves--the conceptualization of world affairs and the premises of action in fluid power situations. No index. Annotation copyrighted by Book News, Inc., Portland, OR
Category: History

Development Of Techniques For Precise Positioning For Odot Using The Global Positioning System Gps

Author : Clyde C. Goad
ISBN : NWU:35556025471087
Genre : Cartography
File Size : 72.53 MB
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This report presents the results of two studies conducted at the Department of Geodetic Science and Surveying in conjunction with the use of GPS in applications for ODOT's Aerial Engineering tasks. The first deals with the implementation of computer code to determine the position of an airplane precisely using signals from the implementation of computer code to determine the position of an airplane precisely using signals from GPS. The second half of the report provides a review of potential benefits to augmenting GPS with Inertial Navigation System technology.
Category: Cartography

Global Positioning System Data Integration And Development Of A Three Dimensional Spatial Model Of The Kansas Highway Network

Author : Shing I. Chang
ISBN : NWU:35556034773879
Genre : Global Positioning System
File Size : 43.9 MB
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This proposal addresses a number of issues concerning the integration of various data collected on the Kansas Highway System through the development of a spatial (3D) model. Currently, the Kansas Department of Transportation (KDOT) collects and maintains spatial data on the Kansas highway system from the yearly road condition survey and video log survey. These surveys utilize differentially corrected Global Positioning System (GPS) systems cross-referenced to the traditional KDOT linear reference system (LRS) derived from distance measuring instruments (DMI) on board the vehicles. Preliminary development of a spatial model has been performed internally to KDOT resulting in a 2D model (latitude and longitude, but not altitude) for approximately 75% of the state highway system. This project extends the 2D model into a 3D model by including altitude GPS coordinates using a B-spline fitting model.
Category: Global Positioning System