论文部分内容阅读
电视信号的ITS测量是保证信号传输质量的一个重要手段,而ITS的数字式计算机测量则是ITS测量的发展方向。但是在目前的技术水平下,微计算机对数据的存储和处理速度与电视信号的变化速度相比存在着较大的差距。本文深入分析了ITS和电视信号的内部特点按照第三代自动测试系统的思想,提出一种非实时取样的测量系统——7T_(sc)ITS测量系统。利用ITS的每帧重复性,采用分帧取样、数字存储的非实时数据采集方式,使系统的
ITS measurement of television signals is an important means to ensure the quality of signal transmission. ITS digital computer measurement is the development direction of ITS measurement. However, under the current technological level, there is a big gap between the speed at which the microcomputer stores and processes data and the speed of change of the television signal. In this paper, the internal characteristics of ITS and television signals are analyzed in depth. According to the idea of the third generation automatic test system, a measurement system of non-real-time sampling, 7T-SC, is proposed. The use of ITS repeatability of each frame, the use of sub-frame sampling, digital storage of non-real-time data acquisition, the system’s