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| Performance Analysis of Multiple SS-DS Transmitted by Single Radiator |
| Dong Hong-fei Zhang Er-yang |
| School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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Abstract The modernization GPS system employes new Binary Offset Carrier (BOC) modulations, which achieve high performance in anti-jamming and code tracking. BOC modulations can be write as a sum of two coding signals. This can be generalized as multiple Spread Spectrum Direct Sequence (SS-DS) modulations transmitted by single radiator. This paper suggest that multiple spread spectrum signals should be processed as a new single signal for achieving high performance in anti-jamming and code tracking. Expression for error of code tracking is given in terms of signal parameters. Values of signal parameters for 3 dB outperform in code tracking are given finally.
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Received: 13 July 2011
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Corresponding Authors:
Dong Hong-fei
E-mail: dong_hongfei@sina.com
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2012, Vol. 34 
