In addition to, the imperfection of performance index system and irrationality of statistical data are analyzed. 与此同时,对经济效益指标体系的不完善性和统计数据的不合理性等进行了分析。
This paper firstly introduces the technical background, development and performance index of network telephone. 本论文首先介绍了网络电话的技术背景、发展和性能指标(PI);
Shake the performance index of the characteristic and estimate; 抖动特性的性能指标(PI)和估算;
The final test results show that the system achieves the expected performance index and meets practical demands. 最后的试验结果表明,系统实现了预期的性能指标(PI),可以满足实用化的需求。
This thesis firstly introduce the function, performance index and operation principle of the wireless interphone of frequency modulation. 首先介绍了调频无线对讲机的功能、性能指标(PI)和工作原理。