Design of DQPSK modulation and demodulation algorithm based on FPGA
Based on software radio technology,this paper designs a new algorithm for differential quadrature reference phase shift keying (DQPSK) modulation and demodulation system,realizes DQPSK full digital modulation and demodulation on the platform of field programmable gate array (FPGA),and upgrades the c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Academic Journals Center of Shanghai Normal University
2019-08-01
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| Series: | Journal of Shanghai Normal University (Natural Sciences) |
| Subjects: | |
| Online Access: | http://qktg.shnu.edu.cn/zrb/shsfqkszrb/ch/reader/view_abstract.aspx?file_no=20190404 |
| Summary: | Based on software radio technology,this paper designs a new algorithm for differential quadrature reference phase shift keying (DQPSK) modulation and demodulation system,realizes DQPSK full digital modulation and demodulation on the platform of field programmable gate array (FPGA),and upgrades the circuit through software programming.Compared with traditional DQPSK modulation and demodulation circuit,it not only greatly reduces the size of printed circuit board(PCB),but also can change and upgrade the modulation and demodulation algorithm without changing the circuit,thus reducing the cost of hardware upgrade and algorithm adjustment.Intel's Quartus Ⅱ software is used as the verification platform,Verilog HDL language is used to realize the functional design of each module,and ModelSim software is used to carry out functional simulation to verify the correctness of the algorithm.The operating frequency of the system reaches 132 MHz,which satisfies the expected requirement. |
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| ISSN: | 1000-5137 1000-5137 |