Doppler Frequency Shift Tolerance Extension in Burst Spread Spectrum Communication System

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 443-444)

Edited by:

Li Jian

Pages:

237-240

DOI:

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

Citation:

Q. Dang and X. L. Lei, "Doppler Frequency Shift Tolerance Extension in Burst Spread Spectrum Communication System", Advanced Materials Research, Vols. 443-444, pp. 237-240, 2012

Online since:

January 2012

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Price:

$35.00

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