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responderClockFrequencyOffset

The clock frequency offset of the responder anchor relative to the initiator anchor.

Declaration

var responderClockFrequencyOffset: Double? { get }

Discussion

This property represents relative clock frequency information between the responder anchor and initiator anchor. The relative difference is a key part of calculating precise distances. Drift between the clocks of anchors represents a persistent issue in DL-TDOA deployments that the responder clock frequency offset helps mitigate.

The value is dimensionless because it expresses a ratio rather than an absolute frequency. The ratio compares the responder’s clock frequency to the initiator’s clock frequency as a fractional difference. You can use the difference as necessary while implementing your DL-TDOA positioning engine.

See Also

Evaluating the message