Design of Background Noise Suppression Circuit for Mobile Phones  

作　　者：Peng Luo Peng Luo(College of Electronical Information Engineering, West China Normal University, Nanchong, China)

机构地区：[1]College of Electronical Information Engineering, West China Normal University, Nanchong, China

出　　处：《Journal of Computer and Communications》2016年第9期19-23,共5页电脑和通信（英文）

摘　　要：With the purpose of reducing the influence of background noise on the call quality of mobile phones, background noise suppression circuit is designed based on the principle of self-adaptive noise cancellation. Because this method is not involved in the nature of the noise itself, it can be used both for stationary noise cancellation and quasi-stationary noise cancellation. The working principle and circuit design of the system are introduced in detail. Simulated experiment was conducted in the lab, and its experimental results were analyzed. The experimental results show that the circuit works well with low cost, and has a broad prospect of application and popularization.With the purpose of reducing the influence of background noise on the call quality of mobile phones, background noise suppression circuit is designed based on the principle of self-adaptive noise cancellation. Because this method is not involved in the nature of the noise itself, it can be used both for stationary noise cancellation and quasi-stationary noise cancellation. The working principle and circuit design of the system are introduced in detail. Simulated experiment was conducted in the lab, and its experimental results were analyzed. The experimental results show that the circuit works well with low cost, and has a broad prospect of application and popularization.

关 键 词：Mobile Phones Noise Suppression Self-Adaptive Noise Cancellation AD623 

分 类 号：TN7[电子电信—电路与系统]