Using multiple detection algorithms in positioning signal processing
US7002514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2004 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Mar 8, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/235
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A systematic method for acquiring positioning signals, such as global positioning system (GPS) signals, uses different signal detection algorithms at different stages of signal detection. For example, a method for detecting multiple positioning signals may include first detecting a first positioning signal using a robust but less sensitive signal detection method, such as non-coherent integration. Based on the signal parameter values that allow detection of the first positional signal, detecting a second positioning signal using a more sensitive method, such as coherent integration. In this manner, by capturing the strongest signal first using a robust method, signal detection parameter values common to positioning signals can be narrowed to allow subsequent signal acquisitions using a more sensitive—but computationally more intensive—method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.