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
posted @ 2024-09-04 05:44  chinagod  阅读(20)  评论(0编辑  收藏  举报