蓝牙系统在ISM频段干扰严重时,其性能将急剧恶化。针对上述问题,给出了一种蓝牙系统与WLAN系统共存时消除两者之间干扰的方法———自适应跳频技术(AFH),阐述了其基本原理和主要技术特点。进而通过系统仿真分别比较并分析了其性能和趋势。最后讨论了以提高系统性能为出发点,考虑将不同的业务和干扰程度情况进行折中。主要性能指标由丢包率、TCP吞吐率、延迟和延迟抖动等来进行衡量。 Bluetooth system in the ISM frequency band serious interference, its performance will be dramatically deteriorated. In view of the above problems, this paper presents an adaptive frequency hopping (AFH) method to eliminate the interference between the Bluetooth system and the WLAN system. The basic principle and main technical features are described. And then through the system simulation separately compares and analyzes its performance and the tendency. Finally, it discusses the improvement of system performance as the starting point, and considers the compromise of different business and interference levels. The main performance indicators by the packet loss rate, TCP throughput, delay and delay jitter to be measured.