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The Design and Implementation of Multi-audio Shortwave Channel Simulator

Author: ZhouZhuoMing
Tutor: YuanWei
School: Huazhong University of Science and Technology
Course: Communication and Information System
Keywords: HF channel simulator Watterson model Multiple audio
CLC: TN925
Type: Master's thesis
Year: 2011
Downloads: 12
Quote: 0
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Abstract


Emerging new type of radio communication system , the short-wave communication has been one of the main ways of the world long-distance communication . Advanced stage of development in the short-wave communication systems , the shortwave channel time-varying and sex will not predict the test work difficult , it will significantly reduce the efficiency of the development of the whole project . The HF channel simulated under laboratory conditions to assist in the completion of the test , which will greatly shorten the research and development cycle of the system . This article related issues through multiple audio input shortwave communication research and analysis , and design of the solution of a set of multi-tone HF channel simulator . Scheduling for multiple audio input signal processing , sound card this paper, the design of the IPC ; improve the entire project development cycle in order to reduce the difficulty of the post-test system , the HF channel simulator gives a detailed implementation program , and verify its feasibility . In order to meet the subject requirements sound card design ideas of the IPC , while three more affect the audio scheduling policy conditions , on the basis of design and can be used to identify multiple sound card and at the same time they reasonable scheduling multi sound card IPC. Detailed research and analysis were used widely in several shortwave channel model , as Watterson Hoffmeyer subband parallel , then the topic needs -based the Watterson model of HF channel simulator , and eventually reached can be used for the purpose of multiple audio input HF channel simulator . Finally, the sound card of the IPC and the HF channel simulator elaborate tests to verify the correctness of each module in the system by a certain amount of test data ; well as the integrity of the test system , which verifies the correctness and effectiveness of the system .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Radio relay communications,microwave communications
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