Invention Grant
- Patent Title: Multipath error estimation in satellite navigation receivers
- Patent Title (中): 卫星导航接收机中的多径误差估计
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Application No.: US11372739Application Date: 2006-03-09
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Publication No.: US08170085B2Publication Date: 2012-05-01
- Inventor: Shaowel Han
- Applicant: Shaowel Han
- Applicant Address: US CA Sunnyvale
- Assignee: CSR Technology Holdings Inc.
- Current Assignee: CSR Technology Holdings Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Main IPC: H03K9/00
- IPC: H03K9/00 ; H04L27/00

Abstract:
The invention presented in this disclosure gives methods to estimate and compensate for the multi-path in a typical navigational or spread spectrum receiver. The multi-path delay is estimated based on the outputs of different correlators of the receiver. Unlike three correlators normally used, the present disclosure uses five correlators, namely, Early2 (E2), Early1 (E1), Prompt (P), Late1 (L1) and Late2 (L2). The possible multi-path scenarios are classified into six different cases depending upon the reflected signal delay and the errors are computed. Further, the algorithm in the present disclosure can be extended to any correlators spacing.
Public/Granted literature
- US20070211793A1 Multipath error estimation in satellite navigation receivers Public/Granted day:2007-09-13
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