Doppler Frequency Shift Tolerance Extension in Burst Spread Spectrum Communication System

Qun Dang; Xiao Li Lei

doi:10.4028/www.scientific.net/AMR.443-444.237

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 443-444Doppler Frequency Shift Tolerance Extension in...

Doppler Frequency Shift Tolerance Extension in Burst Spread Spectrum Communication System

Abstract:

A method to extend Doppler frequency discrimination tolerance is proposed for quick acquirement PN-code and Doppler frequency in TDMA burst spread spectrum communication system. According to Doppler’s different impacts on the correlation Peak and data demodulation, PN-code is acquired through single channel matched-filters, and parallel multi-channel correlators are used in the data demodulation branch channel. Thus, with using frame head prior information in data channel instead of traditional Cross-Product Automatic Frequency Control (CPAFC), the Doppler frequency shift discrimination tolerance is extended. Simulation and experiment show that frequency and PN-code can be acquired in several data periods, and synchronous time and the resources consumption are effectively reduced.

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Periodical:

Advanced Materials Research (Volumes 443-444)

Pages:

237-240

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.443-444.237

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Online since:

January 2012

Authors:

Qun Dang, Xiao Li Lei

Keywords:

Acquisition, Burst Transmission, CPAFC, Doppler Tolerance

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