论文部分内容阅读
提出了一种全新的智能交通模型,该模型结合了传统的码分多址技术和可穿戴设备技术,利用可见光通信的基本理念和人体视觉的基本原理,为智能交通提供了一种低成本,高可靠性,易于实现的信息互通技术模型。该模型中,信息的发送端对可见灯光(信号灯,路灯,汽车刹车灯)进行基于码分多址的强度调制,不同终端的不同信息搭载于不同的地址中,信号的接收端搭载于人类(司机,行人)的可穿戴设备,并由该可穿戴设备通过对光的直接强度检测完成信号接收,对信号进行针对地址码的匹配滤波,从而完成对需求信息的提取。仿真结果表明该智能交通模型可以极大地保证信号传输的可靠性,在没有任何编码的情况下,系统达到10~(-3)误码率只需要-2dB的时隙信噪比。
A new intelligent traffic model is proposed. The model combines the traditional code division multiple access technology and wearable device technology. It uses the basic concept of visible light communication and the basic principle of human vision to provide a low-cost, High reliability, easy to implement information exchange technology model. In this model, the sender of information carries out intensity modulation based on code division multiple access for visible light (signal lamp, street lamp and automobile brake lamp), different information of different terminals is carried in different addresses, and the receiving end of signal is mounted on human Driver and pedestrian), and the wearable device completes the signal reception by detecting the direct intensity of light and performs matched filtering on the signal against the address code to complete the extraction of the requirement information. The simulation results show that the intelligent traffic model can greatly ensure the reliability of signal transmission. Without any coding, the system achieves 10 ~ (-3) bit error rate and only needs -2dB slot SNR.