论文部分内容阅读
26B 型双二进制数据终端设备采用双二进制移频调制载波的编码方式,使在有限带宽的通信信道上,传输数据的速度可以提高一倍。并提供了一种不需把附加信息比特加入数据字符的检错方法。这种系统特别可在一般有线、电缆、载波或微波设备所用音频频带信道上传输串行数字数据。
26B dual-binary data terminal equipment uses double binary frequency modulation carrier modulation, so that the limited bandwidth of the communication channel, the transmission speed of the data can be doubled. And provides an error detection method that does not require adding additional information bits to data characters. Such a system is particularly capable of transmitting serial digital data over audio frequency band channels used in typical wired, cable, carrier, or microwave equipment.