원문정보
초록
영어
Based on microcontroller, an audio source switcher which can be used for medium wave transmitter is proposed in this paper. According to the default priority, the proposed switcher can correctly realize the function of switch among other signal channels when the current audio source is in transmission fault. In order to improve the stability and practical value, the switcher can correctly distinguish the statuses of speech pause and transmission fault according to default time. Moreover, the trap filter is also used in switcher to inhabit the high frequency interference of transmitting station. It is expected that this switcher has potential application in future.
목차
1. Introduction
2. System Composition and Principle
3. System Hardware Design
4. System Software Design
5. Testing and Analysis
6. Conclusions
Acknowledgements
References
