Like Bartlett, Hann, and Hamming windows, the Bartlett-Hann window has a
mainlobe at the origin and asymptotically decaying sidelobes on both sides.
It is a linear combination of weighted Bartlett and Hann windows with near
sidelobes lower than both Bartlett and Hann and with far sidelobes lower than
both Bartlett and Hamming windows. The mainlobe width of the modified
Bartlett-Hann window is not increased relative to either Bartlett or Hann
window mainlobes.