摘要
该文选用Cost 231-Walfisch-Ikegami无线传输模型对手机电视信号传输特点进行了分析,为方便应用,从实际应用角度对该模型进行了简化。借助Matlab软件仿真,分析了手机电视信号的MPSK调制方式,找出了直通视距和非直通视距条件下手机电视信号的传输特性,着重讨论了两种条件下发射功率与误码率的关系,给出了曲线结果。根据结果特点,增加发射功率,减小误码率,可有效避免功率的浪费。
This paper uses the Cost 231- Walfisch- Ikegami model that simplified the Mobile TV signal transmission,and analyzes the relationship between power and bit error rate of LOS and NLOS through the MPSK modulation. The paper,with the aid of Matlab software,analyzes the MPSK modulation mode of mobile phone TV signals,finds out the direct line- of- sight and non direct line-of- sight under the condition of mobile TV signal transmission characteristics,emphatically discusses the transmit power and bit error rate under the condition of two kinds of relationship and provides,curves results. According to the characteristics of the curve,we can increase the transmitting power,reduce the bit error rate,and effectively avoid the waste of power.
出处
《实验科学与技术》
2016年第5期28-30,共3页
Experiment Science and Technology
基金
国家自然科学基金(6146053)
云南省教育厅基金(2014Y021)
云南省广播电视局合作项目联合资助
