摘要
数字式调制与许多模拟调制方式相比,在相同的信噪比条件下误码率低。基于BPSK编码方式和微弱信号检测及单片机技术,针对光在大气通信中遇到的实际困难,提出了一种低信噪比条件下的点对点通信实验方案。该方案发送数据的相位精度高,可控性好,接收端前置放大器动态范围宽,解码能力强。
Digital modulating has many advantages by comparison with the analog modulating, and has low bit error rate （BER） under the same SNR. A new scheme is developed which is designed for optical wireless communication, based on BPSK , weak signal detection and MPU . The scheme is available for point to point communication , with characteristic of high phase precision data , wide dynamic range and great decoding ability. The results of this experiment show that this scheme is feasible.
出处
《光学与光电技术》
2006年第5期49-51,共3页
Optics & Optoelectronic Technology
关键词
双相移相键控
无线光通信
锁相放大
89S51单片机
binary phase shift keying
optical wireless communication
phase-locked amplifier
89S51 MPU
