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US 2010/0305932 A1Published application
Method and device for integrating a rf gps emulator in a simulation environment
AssigneeAirbus Operations GmbH
InventorPatrice Casse
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AssigneeAirbus Operations GmbH
InventorPatrice Casse
Estimating the term…
The invention in particular has as an object a method and a device for integration of an RF GPS emulator in a simulation environment comprising a computer adapted for using a simulation timer and for receiving a signal of x_PPS type. For each pulse detected on the said x_PPS signal, a counter for number of detected pulses is updated (425) and the value of the said simulation timer is stored (425). The evaluation (415) of a given moment, in the clock of the said emulator, is performed according to the value of the said counter for number of pulses, the value of the said simulation timer and the said stored value of the said simulation timer. A step of verifying (430) the detected pulses preferably is implemented.
Method for integration of a GPS emulator (305) in a simulation environment comprising a computer (300) adapted for using a simulation timer (315) and for receiving a signal of x_PPS type (335), the said emulator being adapted for transmitting the said signal of x_PPS type, the method being characterized in that it comprises the following steps,
Method according to any one of the preceding claims, further comprising a step of verifying (430) the validity of the detected pulse, the said steps of updating a counter for number of detected pulses and storing the value of the said simulation timer being performed only if the detected pulse is valid.
Method according to the preceding claim, according to which the said step of verifying the validity of a detected pulse comprises a step of comparing the time interval separating the moment of detection of the said detected pulse and the moment represented by the said stored value of the said simulation timer with at least one predetermined threshold.
Method according to any one of the preceding claims, according to which the said signal of x_PPS type is a signal of 1_PPS type.
Method according to any one of the preceding claims, further comprising the following steps,
Computer program comprising instructions adapted for the implementation of each of the steps of the method according to any one of the preceding claims when the said program is run on a computer.
Device according to the preceding claim, according to which the said x_PPS signal is at least partially transmitted in optical form.
Dependencies are inferred from the claim text.