Abstract
The manuscript developed an optimal frequency band transmission system structure of QPSK. The software programming experiment of this complete QPSK optimal band transmission system is designed and realized based on Matlab. The experimental parameters used in the design are consistent with the requirements of the actual system parameters. The key code of the software design is given in each module of the system. The whole system is simulated. The simulation results show that the QPSK optimal band transmission system can achieve the best reception performance and realize its function.
Highlights
The rapid development of social science and technology is inseparable from the most basic communication
Through the software design and programming experiment of QPSK optimal band transmission system, people can understand how communication theory and technology can be realized through software programming, understand the software attributes of communication system design, and learn the complete communication system software design and implementation process and method [4] [5]
Through the experiment of software design communication system, we should especially realize the gap between actual communication and communication theory, how to transform communication theory into actual communication system, and pay attention to solving this problem in software design communication system
Summary
The rapid development of social science and technology is inseparable from the most basic communication. The technology of QPSK modulation and demodulation is very simple, but the design and implementation of digital matched filter in the QPSK optimal frequency band transmission system based on the best reception theory is a problem that needs to be solved. Through the software design and programming experiment of QPSK optimal band transmission system, people can understand how communication theory and technology can be realized through software programming, understand the software attributes of communication system design, and learn the complete communication system software design and implementation process and method [4] [5]. The designed QPSK optimal band transmission system includes important basic communication theoretical knowledge such as M-ary modulation technology, inter symbol crosstalk elimination technology and optimal reception technology, which is of typical significance for understanding communication theory and practical implementation technology. After the software programming design is completed, you can directly download the software radio and switch to the real-world experiment to realize the transformation from theoretical design to real-world application, which lays a foundation for follow-up research and product development
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