Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Patent
1993-01-26
1994-06-21
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
G01S 1300
Patent
active
053231635
ABSTRACT:
The all DOP GPS optimization utilizes special dilution of precision (DOP) minimization measures to select the constellation of four (and fewer, with constraints) GPS satellites to form the navigation solution with optimized accuracy in the desired orthogonal component(s) of position and velocity, and the desired component of time. Furthermore, the all DOP GPS optimization utilizes multiple navigation solutions of the top ranked satellite constellations of four (and fewer) GPS satellites selected by special DOP(s) (and standard DOP(s)) minimization(s), by weighting these multiple navigation solution estimates for a component(s) of interest with the inverse of the associated DOP, and then solving for the least squares solution of these multiple navigation solution estimates. Implementation of all DOP GPS optimization is accomplished with addition of microprocessor(s), RAM memory, and ROM memory to the general processing section of a GPS receiver to implement the special DOP (and standard DOP) algorithms, the multiple parallel running navigation solutions, and the least squares solution of the the multiple navigation solution estimates by increased processing thruput, and added data, constants, and instructions storage.
REFERENCES:
patent: 5144318 (1992-09-01), Kishi
Gilliam Frank D.
Hellner Mark
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