Basic objective of NAVSTAR GPS is to provide services for
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- Positioning, Velocity and Timing
- Positioning, Navigation and Timing
- Velocity, Navigation and Timing
- Positioning, Velocity and Navigation
The Correct Option is B
Solution and Explanation
- Positioning: GPS determines the precise position (latitude, longitude, and altitude) of an object on Earth by using signals from multiple satellites. This is the fundamental service provided by GPS.
- Navigation: GPS helps users navigate by providing directions and guiding them from one location to another. This is especially useful for navigation in unfamiliar areas.
- Timing: GPS also provides accurate time synchronization. The system has highly precise atomic clocks on each satellite, which help provide accurate time across the globe. Step 2: Analysis of the options
- Option (A): Positioning, Velocity and Timing. While velocity is important in GPS systems, it is not the primary service provided by NAVSTAR GPS. Hence, this option is incorrect.
- Option (B): Positioning, Navigation and Timing. This is the correct answer, as these are the three main services provided by NAVSTAR GPS.
- Option (C): Velocity, Navigation and Timing. This is not correct, as velocity is not a primary service of GPS.
- Option (D): Positioning, Velocity and Navigation. This option is incorrect because velocity is not one of the core services of GPS. Thus, the correct answer is (B) Positioning, Navigation and Timing.
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