The characteristic of several filtering window functions giving the charts of outline and scope response is introduced.
介绍了几种常用滤波窗函数的特点，给出了包络图和幅度响应图。
The height of the characteristic temperature layer can be used to determine the altitude and thickness of "seeding temperature window," a seeding position criterion.
特征温度层高度可提供“播云温度窗区”的高度和厚度，也可为进一步确定播撒高度提供判据。
Introduce the reference frame and time system used in orbit design particularly. Analyzed the orbit characteristic of two-body problem and launch window.
详细介绍了用于轨道设计的坐标系统和时间系统，分析了二体轨道特性和发射窗口的基本特性。
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