Invention Grant
- Patent Title: Method for fine timing acquisition
- Patent Title (中): 精确定时采集方法
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Application No.: US11379418Application Date: 2006-04-20
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Publication No.: US07653156B2Publication Date: 2010-01-26
- Inventor: Gary A. Ray , James B. Baker
- Applicant: Gary A. Ray , James B. Baker
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: McNees Wallace & Nurick, LLC
- Main IPC: H04L27/06
- IPC: H04L27/06 ; H04L7/06 ; H03D1/00 ; H04L7/00

Abstract:
A method of processing a timing synchronization signal includes selecting an initial sequence of complex numbers and modifying the initial sequence based upon a metric applied to the autocorrelation function to enhance its autocorrelation properties within a predetermined window about the main autocorrelation peak determined by the timing uncertainty of the system. This two-step optimization process produces a new complex sequence used for timing acquisition. It is applied by transmitting the sequence through a medium and correlating the received signal against a known error-free sequence. Only correlation within the window of the bounded timing uncertainty is performed, thus saving valuable computational cycles. Also, because the sidelobe levels of the autocorrelated function are significantly lower within the timing uncertainty window than the sidelobe levels of a non-optimized autocorrelation function of a signal, the likelihood of finding a peak for the wrong timing signal is greatly reduced.
Public/Granted literature
- US20070248193A1 METHOD FOR FINE TIMING ACQUISITION Public/Granted day:2007-10-25
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