电阻衰减匹配网络的设计计算法

Calculating Method of Design About Resistance Fading And Matching Network

声频系统,不管是播出系统还是节目制作系统,都是由为数不少的声频设备相互连接而成。设备之间的配置是否合理,直接影响节目制作的质量。由于现在我们使用的设备,规格繁多,性能各异,要把这些不同的输出阻抗和输入阻抗、相差甚远的输出电平和输入灵敏度合理地配接起来,既要使系统稳定可靠地输出,又要满足主要技术指标(频响、失真度和信噪比)的规定要求,级间的衰减、匹配是很重要的一环。

All the audio systems, included broad casting system and program produciug system, are composed of many audio devices by Connecting each othe. The configuration between devices direct influence quality of program production. Because equipment specifications and feature is different, its input resistance output resistance, output leave and input sensitivity also is very different. If we want to connect all these equipment and make the total system outpute to be reliable as well as satisfy specifications requested, the attenuating and matching between stage is very impor tant.