Adaptive path selection threshold setting for DS-CDMA receivers
US6229842A · kind A · utility
52Cited by
3References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1998 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Jul 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0802
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for detecting and selecting peaks in a delay power profile (DPP) signal. An adaptive threshold is used to determine valid paths in the DPP signal. The adaptive threshold is determined by measuring the signal-to-noise ratio of the DPP signal, and setting the threshold to minimize non-detections and false alarms in path estimation. To determine the signal-to-noise ratio, the system uses an iterative process wherein a raw estimate and an improved estimate are made of the noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.