发明名称 |
USING MULTIPLE DETECTION ALGORITHMS IN POSITIONING SIGNAL PROCESSING |
摘要 |
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.
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申请公布号 |
WO2004065980(B1) |
申请公布日期 |
2004.10.28 |
申请号 |
WO2004US01210 |
申请日期 |
2004.01.16 |
申请人 |
SIRF TECHNOLOGY, INC.;BASCH, JULIEN;CHOU, ANDREW;LORENZ, ROBERT;STONE, JESSE |
发明人 |
BASCH, JULIEN;CHOU, ANDREW;LORENZ, ROBERT;STONE, JESSE |
分类号 |
G01S1/00;(IPC1-7):G01S1/00 |
主分类号 |
G01S1/00 |
代理机构 |
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