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- W2729363577 abstract "SummaryLong code Direct Sequence Spread Spectrum is a good choice for applications where security and antispoofing ability of a spread spectrum connection is concerned. Due to long period of spreading code, acquisition is a challenge for these systems because a trade-off between detection probability and acquisition time must be made. For confronting this challenge, various algorithms were proposed in the literature but almost all of them focus on expediting the coarse acquisition. In this paper, we consider the efficient dual folding algorithm for coarse acquisition level and propose 3 methods for enhancing the fine acquisition level leading to faster execution of overall acquisition algorithm. The methods are based on estimations from coarse acquisition level that are not used in conventional algorithms for fine acquisition, ie, zero padding. Theoretical expressions of 2 main comparison criteria in acquisition algorithms, ie, detection probability and mean acquisition time, are derived for conventional zero padding and each of the proposed method. Besides, a coarse estimate of resource consumption is provided by the number of floating point operations for each algorithm to make a useful comparison. Considering these 3 parameters, in comparison, the proposed methods surpass zero padding in 1, 2, or all of the 3 aspects. Simulation agrees well with analytical results." @default.
- W2729363577 created "2017-07-14" @default.
- W2729363577 creator A5051808448 @default.
- W2729363577 creator A5089534703 @default.
- W2729363577 date "2017-07-06" @default.
- W2729363577 modified "2023-09-27" @default.
- W2729363577 title "New methods for enhancing fine acquisition in dual folding algorithm of long pseudo noise codes" @default.
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- W2729363577 doi "https://doi.org/10.1002/dac.3377" @default.
- W2729363577 hasPublicationYear "2017" @default.
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