一种AM-VSB光发射机非线性失真补偿电路  

An AM-VSB Fiber Optic Transmitter Nonlinear Distortion Compensation Circuit

作　　者：陈彪[1] 陈惠芳[1] 

机构地区：[1]浙江大学信息与电子工程学系,浙江杭州310027

出　　处：《电路与系统学报》2001年第1期85-87,共3页Journal of Circuits and Systems

摘　　要：本文提出一种相对简单的有线电视光发射机非线性预失真补偿电路网络，从理论分析得知，可以通过调节非线性元件的静态工作点和网络末端的放大器的增益，能使光发射机的二次失真和三次失真降低。实验测试结果表明该电路能改善CTB、CSO指标。A relatively simple pre-distortion linearized circuit for CATV fiber optic transmitters is presented. From theoretical analysis，it can be seen that using this circuit，the second order and third order distortion of the transmitter can be decreased by changing the working point of the nonlinear components and the gain of the end amplifier. Experimental results indicate that the circuit does improve the index of CSO and CTB.

关 键 词：发光射机 AM-VSB 非线性失真 补偿电路 

分 类 号：TN83[电子电信—信息与通信工程]