Blackman window magnitude attenuation

1. What is Blackman windowing technique?
2. Which window spectrum has the highest attenuation for side lobes?
3. What is the peak side lobe in dB for a Blackman window?
4. What is ratio of main lobe of Hamming window to that of Blackman window?

What is Blackman windowing technique?

The Blackman window is a taper formed by using the first three terms of a summation of cosines. It was designed to have close to the minimal leakage possible. It is close to optimal, only slightly worse than a Kaiser window.

Which window spectrum has the highest attenuation for side lobes?

In general, the different windows trade off two competing goals which can be seen in the frequency domain: having a narrow “main lobe width” and having high attenuation of the side lobes. The Blackman window has a wider main lobe and more side lobe attenuation than Hanning or Hamming.

What is the peak side lobe in dB for a Blackman window?

Explanation: The peak side lobe in the case of rectangular window has a value of -13dB.

What is ratio of main lobe of Hamming window to that of Blackman window?

Note that the width of the main lobe in the magnitude response is about 50% wider than that of the Hamming window.