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US 6,184,824 B2Granted
Process for initializing a receiver for determining position and corresponding receiver
AssigneeRobert Bosch GmbH
InventorsFriedrich-Wilhelm Bode, Volkmar Tanneberger
Life of this patent
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Abstract
A method for initialization of a receiver, and a receiver of position signals, are proposed, a sequence of transmitter identifiers being searched through for an active transmitter, and the sequence of transmitter identifiers comprising satellites which are positioned in orbits that are located approximately perpendicular to one another.
Claims10
A method for initializing a receiver for a satellite-assisted location system, comprising the steps of:
- determining, via the receiver, a three-dimensional position as a function of time-of-flight measurements to satellites, the satellites being located on orbital paths around the Earth, each one of the orbital paths defining a plane in which the one of the orbital paths is located;
- and
- searching for a first satellite including the steps of selecting all the satellites along at least two orbital paths, the at least two orbital paths defining two planes, the two planes enclosing an angle lying in a range from 80 to 100 degrees, and storing a first sequence of transmitter identifiers in the receiver, the first sequence of transmitter identifiers being associated with the selected satellites.
A receiver of satellite signals, comprising:
- an analysis unit determining a three-dimensional position as a function of time-of-flight measurements to satellites, the satellites being located on orbital paths around the Earth, each of the one orbital paths defining a plane in which the one of the orbital paths is located, the analysis unit further searching for a first satellite by selecting all the satellites along at least two orbital paths, the at least two orbital paths defining two planes, the two planes enclosing an angle lying in a range from 80 to 100 degrees;
- and
- a nonvolatile memory configured for storing several sequences of transmitter identifiers including a first sequence of transmitter identifiers, the first sequence of identifiers being associated with the selected satellites.
Dependencies are inferred from the claim text.