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Phone AGPS assisted positioning technology research and Optimization

Author: MaZuo
Tutor: SongMaoQiang
School: Beijing University of Posts and Telecommunications
Course: Computer Science and Technology
Keywords: GPS AGPS 3G Linux-Java Smartphone
CLC: TN967.1
Type: Master's thesis
Year: 2008
Downloads: 420
Quote: 1
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Abstract


With the Global Positioning System (GPS) of continuous improvement and popularity of its application areas as the technology matures and continuously expand and begin gradually into people's daily lives , along with satellite navigation and positioning equipment miniaturization of chips and even 3G services in China is about to carry out a variety of embedded electronic product variety, combined with people's lives more and more closely . Therefore, the major mobile phone manufacturers have launched with the GPS navigation smartphone. This study by Motorola's Linux-Java platform with GPS function 3G smartphone ( working under the WCDMA network ) as the research object , first introduced the basics of GPS , basic terminology and working principle , on this basis for the present there are advantages and disadvantages to make GPS detail, thus introducing a shorter positioning time , higher positioning accuracy AGPS technology . This topic combines mobile phone hardware configuration is low, job stability requirements, small energy consumption and other characteristics, in AGPS system for mobile phones original research and analysis , based on the AGPS give an optimization scheme to maximize the use of existing AGPS data , reducing the underlying raw data acquisition frequency update and improve the overall performance of the phone's performance, increase mobile speed of response to the user program to reduce cell phone energy consumption and improve efficiency of the system .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio navigation > Navigation systems of the various institutional > Satellite navigation system
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