研究数字通信系统计算机仿真中误码率(Pe)估计的重要抽样法,提出了一种新的混合偏置技术,计算了最佳化参数,分析了性能。结果表明,与现有文献中提出的方法相比,采用该技术,在大多数情况下可以得到更好的估计性能;特别是在只知系统Pe的粗略值时,使用此技术具有明显的优越性。 To study the important sampling method of bit error rate (Pe) estimation in the computer simulation of digital communication system, a new hybrid bias technique is proposed. The optimal parameters are calculated and the performance is analyzed. The results show that, compared with the methods proposed in the existing literature, the technique can be used to obtain better estimation performance in most cases; especially when only the rough values ​​of system Pe are known, the use of this technique has obvious advantages Sex.