TDOA Least Square Method for Positioning with Two GNSS Satellites over Time
نویسندگان
چکیده
GNSS is well known for its availability and accuracy but it suffers when operating in urban canyons, indoors as well as environments such as ports. This paper uses Time Difference of Arrival (TDOA) measurements from two satellites over time to calculate the position of the receiver. The system was tested by masking out satellites to simulate buildings or objects along both sides blocking large segments of the sky. Experimental results show that the system is capable of achieving accuracy of within 10 meters even in the toughest scenarios, i.e. with only 10 degrees of the sky is visible.
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