摘要 |
A position sensing system 2 dynamically reduces the effects of multipath reflections by dynamically adjusting the comparator 16 threshold in response to received signals 4. The system compares the time a signal takes to travel from a transmitter 8 in a mobile component 6 to a plurality of receivers 12 in a fixed component 10 and adjusts (increases) the comparator threshold if the difference in times measured by the receivers is too large. It may also reduce the threshold if any receiver does not detect a signal. |