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|United States Patent||6,266,014|
|Fattouche , et al.||July 24, 2001|
The invention consists of methods and apparatus to estimate the position and velocity of a Mobile Receiver (MR) using either the Time Of Arrival (TOA) of signals received by the MR, their Phase Of Arrival (POA), their Strength Of Arrival (SOA), their Frequency Of Arrival (FOA), or a combination thereof, with respect to a reference produced by a Reference Receiver (RR) of known location. In order to solve for the coordinates of the MR, the invention uses either hyperbolic multilateration based on Time Difference Of Arrival (TDOA), or linear multiangulation based on Phase Difference Of Arrival (PDOA), or both. In order to solve for the velocity of the MR, the patent uses FOA based on Frequency Difference Of Arrival (FDOA).
|Inventors:||Fattouche; Michel (Calgary, CA), Klukas; Richard (Calgary, CA), Oler; Kevin (Calgary, CA)|
|Filed:||October 9, 1998|
|Current U.S. Class:||342/450 ; 375/350; 455/456.6|
|Current International Class:||G01S 5/00 (20060101); G01S 5/12 (20060101); G01S 5/10 (20060101); G01S 5/14 (20060101); G01S 5/08 (20060101); H04Q 7/38 (20060101); G01S 003/02 (); H04B 001/10 (); H04Q 007/20 ()|
|Field of Search:||455/456,422 342/450,457,463,464,357.01,357.02,357.06 375/350|
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|WO 93/06685||Apr., 1993||WO|
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