  A new variable-width window is presented and compared with several other
windows, both of variable and fixed widths. The comparison focuses on
sensitivity and dynamic range. The equivalent noise bandwidth or ENBW (or
rather, its reciprocal) is used as a proxy for the first; maximum sidelobe
level and high-frequency roll-off in the Fourier transform, for the second. The
new window can access any value of ENBW by appropriate choice of the width
parameter. At any given value of ENBW below about 3, a setting can be found at
which the sidelobes of the window are lower than those of any other in the
moderate frequency regime below about 100 cycles.
