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Lower bound on spreading code tracking error under unmatched de-spreading mode

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2 Author(s)
Yao, Z. ; Dept. of Electron. Eng., Tsinghua Univerisity, Beijing, China ; Lu, M.

The spreading code tracking error lower bound of the coherent delay-locked loop with a generic unmatched de-spreading chip waveform is presented, and the equivalent root-mean-square bandwidth which can serve as a measure of the tracking precision in thermal noise for unmatched de-spreading mode is proposed. By using this measure, tracking performance of some typical spreading signals in global navigation satellite systems under unmatched de-spreading mode is evaluated.

Published in:

Electronics Letters  (Volume:47 ,  Issue: 15 )