Howtosignalprocessing
- How do you smooth a signal?
- Which is better Hamming or Hanning?
- Why use a Hanning window?
- What is Hanning in DSP?
How do you smooth a signal?
The easiest way to smooth a signal is by moving window average. A more advanced way is to use a Savitzky-Golay filter.
Which is better Hamming or Hanning?
Hamming and Hanning
Between the two, the Hamming window does a better job of cancelling the nearest side lobe, but a poorer job of cancelling the rest. Due to their speed and good-enough noise performance, these windows have historically seen use in voice communications.
Why use a Hanning window?
Hanning is the most commonly used window function for random signals because it provides good frequency resolution and leakage protection with fair amplitude accuracy.
What is Hanning in DSP?
HANNING is a window function for signal or image filtering using a fast fourier transform. By processing data through HANNING before applying FFT, more realistic results can be obtained. The window calculated by HANNING is basically the first half of a cosine—in other words, only the positive cosine values.
