论文部分内容阅读
本文根据美国提供的实测数据及CCITT的有关文件提出的数学方法,构造了误码的均匀分布模型、简单泊松分布模型、复合泊松分布模型,并用微处理机实现了比特速率为2048kb/s时三种分布误码的模拟设备,编制了模拟程序并固化到EPROM中。根据CCITT建议G.821的有关规定及文件,做出了能在2048kb/s速率下同时测量误码的劣化分钟、无误码秒、严重误码秒及平均误码率等误码参数以及误码分布的误码仪。
Based on the measured data provided by the United States and the mathematical method proposed by the relevant documents of CCITT, this paper constructs a uniform distribution model of error codes, a simple Poisson distribution model and a composite Poisson distribution model, and realizes a bit rate of 2048kb / s When the distribution of three kinds of simulation equipment error, prepared a simulation program and cured to EPROM. According to the relevant provisions and documents of CCITT Recommendation G.821, it is proposed to measure the error minutes, error-free seconds, severely errored seconds, average bit error rate, and other error parameters at the same time at a rate of 2048 kb / s, Distribution of error code.