摘要
介绍了蓝牙1.2和2.0版的射频特性,分析了蓝牙射频信号的三种数字调变模式、两种数据速率封包格式和信号的星座图,计算高斯滤波器和根升余弦滤波器的频带利用率,说明不同蓝牙版本具有不同的射频特性。根据蓝牙跳频信号的时间特性,提出用实时频谱仪进行跳频信号的快速测试。
The paper introduces the radio frequency characteristics of bluetooth 1.2 and 2.0 version, analyzes three kinds of digital modulation,two kinds of packet format of the data rate and the constellation graph of the signal,calculates the Freq -Range utilization of Gaussian filter and root - raised cosine filter,explains that different Bluetooth versions possess distinct radio frequency characteristics. According to the time feature of frequency hopping signal of Bluetooth,it forwards out the rapid testing of frequency hopping signal operates with real - time spectrum analyzer.
出处
《现代电子技术》
2008年第15期53-56,共4页
Modern Electronics Technique
基金
浙江省教育厅一般课题(20060027)资助项目
关键词
蓝牙射频
调变模式
星座图
实时频谱仪
radio frequency of Bluetooth
modulation mode
constellation graph
real - time spectrum analyzer
