认知无线电系统中多载波信号带外干扰的抑制，采用载波加权的方法降低认知无线电系统中认知用户信号对主用户信号的干扰 -Cognitive radio system in multi-carrier signal-band interference suppression, the use of carrier-weighted ways to reduce cognitive cognitive radio system users on the primary user signal sign

认知无线电中的能量检测算法，基于单用户，多用户(Energy detection algorithm in cognitive radio based on single user and multi user)