ESS210B
Prof. Jin-Yi Yu
We Wish the Data Window Can…
qProduce a narrow central lobe
q     č require a larger T (the length of data window)
q     Produce a insignificant side lobes
q     č require a smooth data window without sharp corners
qA rectangular or Bartlett window leaves the time series undistorted, but can seriously distort the frequency spectrum.
q    A tapered window distorts the time series but may yield a more representative frequency spectrum.