Impulsive Noise Characterization of In-Vehicle Power Line
Impulsive Noise Characterization of In-Vehicle Power Line
复制标题
车载电源线的脉冲噪声特性
DOI：
10.1109/temc.2008.2006851
复制
发表时间：
2008
影响因子：
2.1
通讯作者：
P. Laly
中科院分区：
文献类型：
--
作者：
V. Degardin;M. Liénard;P. Degauque;E. Simon;P. Laly
脉冲噪声会对车载电力线通信系统的性能产生很大的影响。因此，在时域中对五种不同的车辆进行了密集的噪声测量。最初的试验是在静止的车辆和发动机空转的情况下进行的，但是所测量的低振幅脉冲的特性在不同的车辆之间有很大的差异。因此，我们强调的特点，高振幅脉冲，大于70 mV，观察时，车辆在交通中移动，在20分钟的行程。噪声的统计特征在于持续时间、频率内容、峰值幅度和连续脉冲之间的时间间隔。提出了基于数学分布函数和拟合各种脉冲特性的实验分布的随机模型。已经发现，到达间隔时间，即，两个连续脉冲之间的时间间隔相当短，因此在优化电力线通信物理层时是最关键的参数。
Impulsive noise can have a great influence on the performance of in-vehicle power line communication systems. Intensive noise measurements in the time domain were thus carried out on five different vehicles. Preliminary trials were first made on a stationary vehicle and the motor idling, but the characteristics of the measured low-amplitude pulses greatly vary from one car to another. We thus emphasize the characteristics of high-amplitude pulses, greater than 70 mV, observed when the vehicles were moving in traffic, during a 20-min trip. Noise is statistically characterized in terms of duration, frequency content, peak amplitude, and time interval between successive pulses. Stochastic models based on mathematical distribution functions and fitting the experimental distribution of the various pulse characteristics are proposed. It has been found that interarrival time, i.e., the time interval between two successive pulses, is rather short and would be thus the most critical parameter when optimizing the power line communication physical layer.