Two Methods of Rapid Code Acquisition Based on FFT

Li Ju; Chen He; Jin Jun-kun; Wu Si-liang

Volume 28 Issue 10

Sep. 2010

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Li Ju, Chen He, Jin Jun-kun, Wu Si-liang. Two Methods of Rapid Code Acquisition Based on FFT[J]. Journal of Electronics & Information Technology, 2006, 28(10): 1778-1781.

Citation:

Li Ju, Chen He, Jin Jun-kun, Wu Si-liang. Two Methods of Rapid Code Acquisition Based on FFT[J]. Journal of Electronics & Information Technology, 2006, 28(10): 1778-1781.

Li Ju, Chen He, Jin Jun-kun, Wu Si-liang. Two Methods of Rapid Code Acquisition Based on FFT[J]. Journal of Electronics & Information Technology, 2006, 28(10): 1778-1781.

Citation:

Li Ju, Chen He, Jin Jun-kun, Wu Si-liang. Two Methods of Rapid Code Acquisition Based on FFT[J]. Journal of Electronics & Information Technology, 2006, 28(10): 1778-1781.

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Two Methods of Rapid Code Acquisition Based on FFT

Received Date: 2005-01-20
Rev Recd Date: 2005-11-14
Publish Date: 2006-10-19

Abstract

Abstract

Two methods of rapid code acquisition based on FFT are presented, one method is based on fractional multiple sampling rate convertor, and the other is based on decimation. To reduce hardware resource, two rapid code acquisition circuits utilizes duplicate design. Two designs applied parallel pipeline structure to improve the processing speed. Block floating-point arithmetic is used to enhance the dynamic range and computation accuracy. Two designs are implemented with a chip of FPGA respectively, simulation and measurement results show that the rapid code acquisition circuit based on fractional multiple sampling rate convertor costs more hardware resource, but can gain higher acquisition accuracy to be compared with the method based on decimation.

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References(1)

References

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