一种串行通信的误码率测试方法  

A BER Test Method on Serial Communication

作　　者：沈瀚涛[1] 孙学聪[2] 朱蕊蘋[1] 

机构地区：[1]中国人民解放军驻二院中心军事代表室,北京100854 [2]北京电子工程总体研究所,北京100854

出　　处：《现代防御技术》2013年第4期110-114,153,共6页Modern Defence Technology

摘　　要：针对目前导弹系统RS-422,RS-485等串行通信总线的误码率测试没有统一、科学、客观的测试方法与测试仪器,提出一种基于通信设备内部自身通信验证的误码率测试方法,该方法采用通讯设备的自闭环链路实现收发端口互相校验,以半双工的工作方式,在多通道串行通信模块的通道之间建立发送-接收链路,基于伪随机码m序列为测试码流,利用统计学中的置信度原理,在保证测试结果的可信度前提下,定量地评估通信系统的质量,具备充分理论依据的基础上实现了低成本高效率的误码率测试。As there is no unified, scientific and objective test methods and test equipment for bit error rate （BER） test in the missile system RS-d22, RS-485 serial communication bus, a BER test method verification based on communications equipment internal communication is presented. Multi-channel seri- al communication module transmitting-receiving link is established between the channels based on the m sequence for the test stream as a half-duplex working mode in this method, which makes use of statistical confidence principle credits under the premise of ensuring the test results, quantitative assessment of the quality of the communication system, on the basis of sufficient theoretical basis to achieve cost-effective BER test.

关 键 词：串行通信 误码率 M序列 

分 类 号：E96[军事—军事通信学] TP273[自动化与计算机技术—检测技术与自动化装置]