Apparatus for and method of correlating to rising chip edges
US7668228B2 · kind B2 · utility
32Cited by
32References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 13, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Mar 28, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7085
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A receiver for position-determining ranging signals transmitted by earth-orbiting satellites uses a set of accumulators, each of which accumulates signal samples corresponding with a position along the rising edges of incoming PRN pulses. An MMT processor calculates the rising edges of the direct path component of the received signal, selects the accumulator whose content correspond to a reference value related to the pulse height of the direct path component and compares the timing of the samples in that accumulator with the timing of the reference value on a reference pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.