摘要
依据正弦平方脉冲的数学方程及其频谱分布,分别导出了与理想和标称视频带宽相对应的正弦平方脉冲的数学表达式及其编程生成方法。实验表明,此法不仅精确,而且便于修改参数,并可直接读入数字电视系统,来测定视频线性响应。
Based on the mathematical model of sine square pulse and its spectrum, this paper provides the mathematical expressions of sine square pulse signals with different half amplitude duration. One is based on the ideal TV bandwidth. The other is based upon the real TV bandwidth. Then the software programming method is designed. The experiments indicate that this method is not only precise, but also easy to modify the parameters of the signals. This signal can be directly used to test the linear response of TV system.
出处
《电视技术》
北大核心
2003年第12期94-95,共2页
Video Engineering
基金
天津市科技发展计划项目(023100611)
