提出了一种“载波相位前向跟踪冶以及“干扰包络后向跟踪冶相结合的“发射自干扰冶对消技术的设计方法。在无源RFID系统中,该方法可以实时、动态地消除发射通道泄漏到接收通道的自干扰信号,提高系统的接收灵敏度。文中分析了无源RFID系统中“发射自干扰冶产生的原理、系统射频参数、以及动态消除技术实现等方面的内容。

A design method of self-jammer cancellation based on front phase-track for carrier and back envelope-track for interference is proposed in this paper. In passive RFID system, the self鄄jammer could be cancelled by using this method, which is real-time and dynamic. At the same time, the receiver sensitivity of system is greatly improved. This paper puts emphasis on theory of self-jammer, RF parameters, realization of dynamic self-jammer cancellation, and so on.