Design And Implementation Of HF Frequency Selection Communication System Software

Based on the existing HF communication equipment, the link layer protocols and the computer software of HF frequency selection communication system is designed in this thesis, and automatic frequency selection and data transmission and other communications functions has been realized.Firstly, the HF channel's statistic features and the development of HF adaptive communication system are introduced in this thesis. Then the realizing plan of the automatic link establishment protocol and data transmission protocol are designed, which are used in HF frequency selection communication system. And the above two software protocol modules are established on Visual C++ 6.0 platform. Then application software of the frame structure of system is designed, realizing the serial port connection module and other functional module. After integrating the above two software protocol module, the complete application software of this system is constituted. The entire software development process makes use of the object-oriented development technology and follows the modulation principle of design, enhancing the software's reliability, and is of advantage to the maintenance and promotion of this software.Finally, the testing experiment of the software of this system is presented, the test result shows the feasibility of this software.