【摘 要】
：
When a MBOC modulated signal is evaluated by the traditional S-curve bias evaluation method,which exists some problems,such as the selection of correlator s
【机 构】
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Beijing Satellite Navigation Center,Beijing 100094,China
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When a MBOC modulated signal is evaluated by the traditional S-curve bias evaluation method,which exists some problems,such as the selection of correlator spacing is not reasonable and the calculation error of the locking point deviation at the platform is relatively large.An improved S-curve bias evaluation method is proposed.In view of the lack of the study on S-curve characteristics in BeiDou,GPS and Galileo on-orbit satellites,the satellite signals in different systems were collected by 13 m antenna signal quality monitoring system,and in accordance with the modulation type,the calculated results on S-curve bias were analyzed.
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