摘要
在微波暗室内利用高性能频谱分析仪对无线键盘工作时产生的辐射信号进行测试,获取无线键盘辐射信号的频谱数据,进行相应的频谱特性分析,找出其辐射的重点频段和特点,为分析按键信息还原提供技术帮助。
In the microwave chamber, using high performance spectrum analyzer to test the radiated signal and fetch the frequency spectrum data of the wireless keyboard that is in working condition. Through these data, we analyze its frequency spectrum characteristics, find the main radiation frequency band and feature, then provide technical assistance to analyze the reduction of keystrokes＇ information.
出处
《计算机安全》
2012年第2期5-7,共3页
Network & Computer Security
关键词
无线键盘
辐射信号
频谱特性
Wireless Keyboard
Radiated Signal
The Frequency Chart Characteristic
