The digital audio transmitter facilities including microwave transmission equipment and microwave modulation transmitter, and audio encoding part 1 to 8 digital audio signal with digital audio decoder, 1 ~ 8 analog audio signal with analog / digital converter, the two switch pulse encoder. Each pulse encoder is connected with the multiplexing circuit and then connected to the data processing module of the modulation part. The receiving end facilities including demodulation and microwave receiver, and audio decoding part, the demodulation part receives data multiplexing circuit solution processing module 1, access to 8 pulse decoder then the branch circuit, a digital analog converter is connected through the analog audio output port, the other path through a digital audio encoder is connected to digital audio output port. The receiver is divided into indoor and outdoor units. The equipment integrates digital analog audio coding and decoding, digital multiplexing, modulation and demodulation, microwave reception and other functions. It has compact structure, low cost, low error code threshold and easy to use.
【技术实现步骤摘要】
【技术保护点】
一种数字音频微波传输设备,包括发端设施和收端设施,发端设施包括调制部分和微波发射部分,调制部分包括相互连接的发数据处理模块和调制器,微波发射部分包括依次连接的上变频器、滤波器和线性功率放大器,线性功率放大器经电缆连接发射天线;调制部分和微波发射部分经各自的分合路器相互连通;收端设施包括解调部分和微波接收部分,微波接收部分包括依次连接的低噪放大器、下变频器、滤波放大器,低噪放大器经电缆连接接收天线,解调部分包括依次连接的解调器和收数据处理模块,微波接收部分和解调部分经各自的分合路器相互连通;其特征在于: 发端设施还包括音频编码部分,1~8路数字音频信号输入端口各接数字音频解码器,1~8路模拟音频信号输入端口各接模拟/数字变换器,1~8路数字音频解码器和1~8路模拟/数字变换器各经开关连接脉冲编码器,1~8路 各连接数字音频解码器的输入检测电路连接各自的开关,当数字音频信号输入时开关断开模拟音频信号通道与脉冲编码器的连接、数字音频信号通道接入脉冲编码器;1~8路脉冲编码器共同接入复用电路,再接入调制部分的发数据处理模块; 收端部分还包括音频 解码部分,和解调部分的收数据 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:张晓铭,唐日英,林义,陆青松,吴忠伟,吴绪硕,
申请(专利权)人:桂林南方通信设备工程公司,
类型:实用新型
国别省市:45[中国|广西]
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