cosine-squared pulse

cosine-squared pulse

[′kō‚sīn ¦skwerd ‚pəls]
(physics)
A pulse whose amplitude varies during some time interval in proportion to the square of the cosine function over the range from -π/2 to π/2, and vanishes outside this time interval.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.