摘要
叙述用数字信号处理芯片TMS320C25捕获同步的方法.位同步在相对调相体制的信号解调中是必不可少的,它指示码元起始位置.位同步的精度直接影响到解调信号的质量.
The author introduces the method of acguiring bit synchronism by using the digital signal to process the chip TMS320C25. It is enevitable for the bit synchronism to be in the signal demodulation of the relative phase-modulation. It indicates the initial position of the cell. The pricision of the bit synchronism has a direct effect on the guality of modulating signal.
关键词
位同步
锁相环
副载频
包络
数字信号处理
bit synchronism
Phase locking loop, subcarrier freguency
envelope
