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中文摘要：
介绍了单片机ATmega 1280的性能及应用方法，并以某移动通信系统为例，设计了单片机ATmega 1280为核心的多通道接收机功率检测控制器；给出了系统组成与工作原理，详细论述了系统软件设计中串口中断、定时中断的配置方法及软件设计流程；通过系统搭载实验验证：用单片机设计的功率检测控制器，不仅简化了系统的硬件设计，提高了系统的可靠性和电磁兼容性，而且满足系统接收机自动识别信号功率强度的指标，解决了移动通信中由于目标距离改变引起接收机信号强度降低的问题，提高接收机信号解调质量。
英文摘要：
The performance and application of ATmega 1280 is briefly described. Multi-channel power detection ＆ control unit is designed based on ATmega 1280 for a certain mobile communication system receiver. The system configuration and principle are illustrated in detail. It elaborately gives the serial port interrupt, timer interrupt configuration and software design flow. Experiments have proved that the power detector ＆ controller designed with ATmega 1280 are not only hardware high performance, but also high reliability and EMC. The designed system well meets the requirements for automatic identification of power signals and improves the demodulation performance of the wireless receiver.
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