< p >我有一些雷达数据处理为了找到时刻和风速。我没有先验知识在信号处理的让我很难从这个频谱估计噪声水平。< / p > < p >功率谱范围本样本(高级别)如下图:描述了< br > < A href = " https://i.stack.imgur.com/Dpn2L.png " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/Dpn2L.png " alt = "在这里输入图像描述" > < / > < / p > < p >我已经完成窗口(可能需要另一个问题我是否做的正确与否)使用汉明窗(scipy.signal。汉明函数)和FFT应用(使用scipy.fft。fft功能)。Now I want to estimate the noise level using the Hildebrand & Sekhon method, and this is where I have got stuck. Understanding it without some backgroud in signal processesing has proven to be quite difficult for me to implement the noise level estimation. Could anybody explain how can I estimate the noise level in this spectrum using the Hildebrand & Sekhon method.
Notes:
There's 1024 NFFT points in the spectrum.