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一、WCDMA基站和TD- SCDMA基站频率干扰介绍1.频率干扰原理分析工作于不同频率的系统产生共存干扰是由于两个系统内发射机和接收机特性的不完善造成的。干扰系统的发射机的对外辐射表现为发射机的ACLR与杂散辐射特性,被干扰系统的接收机的被干扰表现为接收机的ACS与阻塞特性。这两个因素共同作用的结果可用ACIR来衡量,即干扰系统的发射信号对邻频共存被干扰系统接收机端的干扰可
First, the WCDMA base station and TD-SCDMA base station frequency interference introduced 1. Frequency interference principle analysis Work in different frequencies of the system co-existence interference is due to the imperfections of the transmitter and receiver characteristics of the two systems. The external radiation of the interfering system’s transmitter appears as ACLR and spurious radiation characteristics of the transmitter. The interference of the receiver of the interfered system shows as the receiver’s ACS and blocking characteristics. The result of the interaction of these two factors can be measured by ACIR, that is, the interfering signal transmitted by the system co-exists with the adjacent channel and the interference at the receiver end of the interfered system may be