二进制代码移频键控BCFSK ？
快速移频键控FFSK ？
提出了卷积码与GMSK(高斯最小移频键控)调制器级联系统的一种迭代译码方案。
An iterative decoding scheme is proposed for the concatenation of a convolutional code and a GMSK modulator.
系统采用移频键控（FSK）调制方式，对轴温数字信号进行处理并发射，上传给便携式模拟接车系统。
The system adopts FSK modulation way to carry out directly digital signal of axle tempratureand transmit to the receiving system of test train.
数字调制解调技术在数字通信中占有非常重要的地位，常用的数字调制有：移频键控(FSK)和移相键控(PS K)等。
Digital mod technology in the digital communication occupies a very important position, commonly used digital modulation are: frequency shift keying (FSK) and phase-shift keying (PSK), and so on.
与通常的直接序列扩颗通信方式(DS - SS)相比，移频键控多值传送扩颗通信方式(FSK - SS)具有传输效率高的特点。
FSK-SS communication system has higher transmission efficiency as compared with direct series spread spectrum (DS-SS) communication system.
与通常的直接序列扩颗通信方式(DS - SS)相比，移频键控多值传送扩颗通信方式(FSK - SS)具有传输效率高的特点。
FSK-SS communication system has higher transmission efficiency as compared with direct series spread spectrum (DS-SS) communication system.
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