摘要
检测GSM广播频点在GSM手机定位和监听方面都起着非常重要的作用。本文介绍一种GSM广播频点检测方法。在本方法中,使用数字下变频技术对无线电信号进行I、Q两路采样,使用FFT变换对采样数据进行变换并检测出FCCH信道,从而检测出GSM广播频点。
GSM broadcast frequency detection is very important in the GSM cell phone localization and tapping application. In this article we introduce a GSM broadcast frequency detect method This method use digital down converter technology sample radio as I and Q samples, then use FFT to detect FCCH channel so that GSM broadcast frequency can be detected.
出处
《信息网络安全》
2010年第11期31-33,共3页
Netinfo Security
