Unbiased signal-to-noise ratio estimation for receiver having channel estimation error
US8098770B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 2008 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Oct 11, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03401
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for estimating transmission noise in a programming information signal. Channel noise power in binary phase shift keying (“BPSK”) modulated telecommunication may be estimated. Such a method may include receiving over the channel a reference signal and a data BPSK signal. The data BPSK signal may include the programming information. The method may include formulating a channel transfer function estimate for the channel based on the reference signal. The estimate may include a channel estimation error. The data BPSK signal may be equalized using the transfer function estimate. The data BPSK signal may include noise, which may be quantified in terms of power. The data BPSK signal noise power may be estimated in such a manner that is independent of the channel estimation error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.