Method for second intercept point calibration based on opportunistic reception
US8121571B2 · kind B2 · utility
8Cited by
2References
20Claims
0Family size
Inventors
Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Aug 16, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D2200/0088
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transceiver device that performs an intercept point calibration using signal interferers is described. The signal interferers include at least self-generated signal interferers or opportunistic signal interferers in surrounding areas. Due to non-linearity in the transceiver device, intermodulation distortion (IMD) signal components are generated. Filtering of the IMD signal components is performed to allow low-frequency components, such as a second order intermodulation (IM2) to pass through. A dynamic minimization algorithm is performed to minimize distortion effects of the low-frequency components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.