基于泊松分布的误码率提前判决算法  

Early Pass/Fail Algorithm based on Poisson Distribution

作　　者：樊方迪 司伟立 韩娟[3,4] FAN Fang-di;SI Wei-li;HAN Juan(School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing400065,China;Beijing Sylincom Technology Co., Ltd, by Shares, Beijing 100180, China;Institute of Computing Technology, Chinese Academy of Sciences, Beijing l00090, China;University of Chinese Academy of Sciences, Beijing 100049, China)

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]北京中科晶上科技股份有限公司,北京100180 [3]中国科学院计算技术研究所无线通信技术研究中心,北京100090 [4]中国科学院大学,北京100049

出　　处：《通信技术》2019年第2期280-285,共6页Communications Technology

基　　金：北京市科技计划项目(No.Z171100005217001)~~

摘　　要：在移动终端接收机测试流程中,通常使用early pass/fail算法来对误码率(BER)测试提前进行判决,以便能更快衡量数据在整个链路过程中传输的可靠性。在以往的陆地蜂窝移动终端测试过程中,普遍采用卡方分布作为early pass/fail的测量算法,不仅保证了结果的可靠性,也提升了测试效率,但需要满足小概率出坏单元和大概率出好单元的条件。通过提出基于泊松分布的earlypass/fail测量算法,则不再需要满足这两个条件,对于GMR-1 3G卫星终端测试具有更好的适用性。该算法通过提出最小测试比特数作为停止条件,能够达到提前判决的目的。In the process of mobile terminal receiver testing,early pass/fail is usually used to judge BER(bit error rate)in advance,so as to measure the reliability of data transmission in the whole link process more quickly.Chi-square distribution is used as the early pass/fail measurement algorithm in the past test process of terrestrial cellular mobile terminal,so as to ensure the reliability of test results and improve the test efficiency.However,it is necessary to satisfy the conditions of bad unit with small probability and good unit with high probability.There is no need to satisfy these two conditions when the early pass/fail measurement algorithm based on Poisson distribution is proposed.And it is more suitable for GMR-1 3G satellite terminal test.In this algorithm,the minimum number of bits is used as the termination criteria,thus to achieve the purpose of early judgment.

关 键 词：误码率 泊松分布 判决 卫星终端测试 

分 类 号：TN927.23[电子电信—通信与信息系统]