风廓线雷达之功率谱数据
https://blog.csdn.net/deepdsp/article/details/7272186
https://blog.csdn.net/marujie123/article/details/121657568
模拟信号(现实中的实际信号)
数字信号(离散化取值后的信号)
采样(频)率 fs:单位时间(1s)的采样数目。 单位:Hz
采样周期:相邻两个采样之间的时间间隔。 单位: s
模拟频率(Hz) (1s内模拟信号重复次数)
数字频率(rad)(归一化的数字角频率)(1s)
What is Digital Frequency 1. Is a value that expresses how much of a cycle of a sinusoidal wave is represented by a sample. This value is denoted by f. For example, f = 1/2 means that 2 samples of a digital signal correspond to a sinusoidal cycle.
数字频率,表示一个样本代表正弦波周期的多少。其值由f表示。例如,f=1/2意味着数字信号中的2个样本对应一个正弦周期。
posted @ 2022-09-13 09:08