Method for the frequency correction of an oscillator of a sensor node of a wireless sensor network
AssigneesFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Friedrich-Alexander-Universität Erlangen-Nürnberg
InventorsHans-Martin Tröger, Norbert Franke, Albert Heuberger, Jörg Robert
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Abstract
The invention relates to a method for the frequency error correction of an oscillator of a sensor node in a sensor network, comprising the following steps: receiving a transmission signal of a transmitter, the signal being modulated by orthogonal frequency division multiplexing (OFDM); determining the frequency deviation of the oscillator using the received transmission signal; determining a correction signal for correcting the frequency deviation of the oscillator and correcting the frequency of the oscillator by means of the correction signal.
Claims15
A method for the frequency correction of an oscillator of a sensor node of a sensor network, with the method including:
- receiving a transmission signal of a transmitter with a modulation according to orthogonal frequency-division multiplexing (OFDM);
- determining the frequency deviation of the oscillator based on the received transmission signal;
- determining a correction signal for the correction of the frequency deviation of the oscillator;
- and
- correcting the frequency of the oscillator with the correction signal.
Dependencies are inferred from the claim text.