Design of Fast Differential Frequency Measurement System Based on FPGA

Fenhua WANG; Bin XIE; Huatao WANG

doi:10.11999/JEIT180243

Volume 41 Issue 1

Jan. 2019

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Article Navigation > Journal of Electronics & Information Technology > 2019 > 41(1): 187-194

Chang Yongyu, Yang Dacheng, Wang Wenbo. A GROUPED PARALLEL MULTIUSER DETECTOR FOR CDMA MOBILE COMMUNICATIONS[J]. Journal of Electronics & Information Technology, 2001, 23(8): 772-777.

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Fenhua WANG, Bin XIE, Huatao WANG. Design of Fast Differential Frequency Measurement System Based on FPGA[J]. Journal of Electronics & Information Technology, 2019, 41(1): 187-194. doi: 10.11999/JEIT180243

Chang Yongyu, Yang Dacheng, Wang Wenbo. A GROUPED PARALLEL MULTIUSER DETECTOR FOR CDMA MOBILE COMMUNICATIONS[J]. Journal of Electronics & Information Technology, 2001, 23(8): 772-777.

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Design of Fast Differential Frequency Measurement System Based on FPGA

doi: 10.11999/JEIT180243

School of Automation, University of Science and Technology Beijing, Beijing 100083, China

Funds: The National Natural Science Foundation of China (61672094)

Received Date: 2018-03-16
Rev Recd Date: 2018-10-16

Available Online: 2018-10-23

Publish Date: 2019-01-01

Abstract

Abstract

For the problem of high precision frequency measurement of dynamic signals with high fundamental frequency and small frequency change value in electronic measurement, a method of differential frequency measurement is introduced. A novel dynamic adjustable multi-stage frequency-difference circuit structure is proposed. The fast differential frequency measurement system based on FPGA is used to design the Fast Fourier Transform (FFT) algorithm on the FPGA to realize the data processing function of the system. The simulation and experimental results show that the structure of the multi-stage differential frequency circuit can be designed with high precision frequency, and the result can be obtained when the spectrum analysis is carried out. The system can realize the fast FFT operation. Compared with the MATLAB software platform, the system has obvious advantages in the efficiency of data processing. The structure of the FFT model can be dynamically adjusted to meet the requirements of FFT operation of different scale points, and the system performance index can meet the requirements of data acquisition system.
- Differential frequency measurement,
- FPGA,
- FFT

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References(16)

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