Efficient DOP Calculation for GPS with and without Altimeter
a more concise but ecient solution for the calculation of GDOP value in the case of four GlobalPositioning System (GPS)satellites isrstly reviewedand then extended tocover the other forms of dilution of precision (DOP) values, including vertical DOP (VDOP) and horizontal DOP (HDOP). Secondly, a review and extension of the conventional
Efficient DOP Calculation for GPS with and without Altimeter
In this paper, a more concise but efficient solution for the calculation of GDOP value in the case of four Global Positioning System (GPS) satellites is firstly reviewed and then extended to cover the other forms of dilution of precision (DOP) values, including vertical DOP (VDOP) and horizontal DOP (HDOP).
Efficient DOP Calculation for GPS with and without Altimeter
Efficient DOP Calculation for GPS with and without Altimeter Aiding Authors: Dah-Jing Jwo Request full-text Abstract Geometric Dilution Of Precision (GDOP) is a factor that describes the effect...
Efficient DOP Calculation for GPS with and - ProQuest
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IJITEE 19 - ResearchGate
In this paper, GDOP is calculated by estimating the receiver position using Firefly Algorithm (FA). This method offers less computational complexity as compared to complicated matrix inversion...
- How many GPS satellites are aided by an altimeter?
- Secondly, a review and extension of the conventional solution is performed in the case of three GPS satellites aided by an altimeter. Based on the ideas gained from these two approaches, a simpler closed-form DOP formula for three GPS satellites aided by an altimeter is derived.
- What is dilution of precision (GDOP) in GPS?
- In GPS applications the dilution of precision (GDOP) is often used to select a subset of satellites from all visible ones. In order to determine the position of a receiver, pseudoranges from n (≥4) satellites must be used at the same time.
- Can GDOP be applied to all possible combinations of visible satellites?
- Conventional closed-form GDOP calculation formula applied to all possible combinations of visible satellites is rather time consuming, especially as the number of satellites grows. Approximations, such as the maximum volume method, are faster but optimum selection is not guaranteed.
- What is GDOP calculation for simple GPS positioning post-processing?
- GDOP calculation for simple GPS positioning post-processing Gdoper provides an easy to use interface for processing positioning related data in a straightforward manner. Given a file that contains positioning data of a GPS receiver, it automatically downloads the Ephemeris of the GPS constellation at the time of the positioning data.
- Can GDOP be used in real-time GPS applications?
- It is desirable to select a set of satellites with GDOP as small as possible. In real time GPS applications, fast computation of GDOP is needed to get the best performance from the system. Extensive studies using machine learning techniques have been conducted previously (Simon and El-Sherief 1995; Jwo and Lai 2003, 2007).
- Which formula is best for GDOP?
- When there are exactly four satellites to compute GDOP, Zhu’s formula (1992) provides the best computational efficiency. On the other hand, when there are more than four satellites to consider, one must first compute the matrix product H T H to get the measurement matrix.
