Range and bearing tracking system with multipath rejection
US5687196A · kind A · utility
35Cited by
7References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1994 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Sep 30, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/27
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for tracking a remote RF transmitter with reduced susceptibility to the effects of multipath in which the distance and direction of an arriving RF chirp signal are determined with respect to the earliest arriving portion of the signal which is presumed to be the direct path signal. The received chirp signals, including the direct and multipath signals, from a remote transmitter are correlated into plural path signals, and the direction and distance to the transmitter is determined from the earliest arriving path signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.