METHOD FOR ACCURACY IMPROVEMENT OF TIME MEASUREMENT AND POSITION TRACKING APPARATUS USING THE SAME
First Claim
1. A method for improving accuracy of time measurement in an apparatus receiving radio signals, comprising:
- obtaining timing information in a received signal;
tracking a code that detects inconsistent timing between the received signal and a tracking signal generated for the received signal;
storing history information on the inconsistent timing between the received signal and the tracking signal for each bit of the received signal; and
arithmetically averaging the history information and updating the timing information of the received signal with the arithmetically averaged value.
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Accused Products
Abstract
Disclosed is a method for improving accuracy of time measurement and a position tracking apparatus using the same. A method for improving accuracy of time measurement includes receiving a radio communication signal and obtaining timing information in a received signal; tracking a code that detects inconsistent timing between the received signal and a tracking signal generated for the received signal; storing history information on the inconsistent timing between the received signal and the tracking signal for each bit of the received signal; and arithmetically averaging the history information and updating the timing information of the received signal with the arithmetically averaged value.
8 Citations
17 Claims
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1. A method for improving accuracy of time measurement in an apparatus receiving radio signals, comprising:
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obtaining timing information in a received signal; tracking a code that detects inconsistent timing between the received signal and a tracking signal generated for the received signal; storing history information on the inconsistent timing between the received signal and the tracking signal for each bit of the received signal; and arithmetically averaging the history information and updating the timing information of the received signal with the arithmetically averaged value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A position tracking apparatus, comprising:
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a sampling unit that obtains timing information in a received signal; a tracking signal generator that generates a tracking signal; a correlator that detects the timing error between the received signal and the tracking signal; a storage unit that stores history information on the timing error between the received signal and the tracking signal for each bit of the received signal; and an accumulated average calculator that obtains the arithmetic average for the history information and outputs the arithmetically averaged results in order to update the timing information. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification