Multipath meter
US6541950B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/709
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention is a multipath meter that analyses estimates of parameters associated with a direct signal component and one or more multipath signal components of a signal received by an antenna. The meter analyses the parameter estimates in order to facilitate the select of a location for an antenna, monitor signal quality at an existing antenna site, and/or to determine if satellite failure or some other type of signal failure has occurred. The multipath meter makes available to a user or for analysis information related to the contributions of the direct signal and the multipath signals to the received signal. The information includes estimates of various parameters such as delay, relative amplitude and phase of the direct and multipath signals. The meter calculates a ratio of the amplitudes of the direct and the multipath signals, to determine the severity of the multipath signals and, thus, the signal quality. The same ratio values may also be used to determine the advisability of the associated location as an antenna site. The meter further calculates multipath corrected correlator values and estimation residual values, to determine how well the receiver compensates for the mu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.