Sadeh D, Ishay J, Yotam R
Experientia. 1977 Mar 15;33(3):335-7. doi: 10.1007/BF02002813.
A new technique is used to measure the hornet's wing movement. It enables one to measure precisely the frequency of this movement, even in the presence of spurious 'noise'. This autocorrelation technique revealed that the hornet's wing stroke is divided into 3 smaller strokes when they are tired. The energy content in each stage can be measured using the autocorrelator.
一种新技术被用于测量黄蜂的翅膀运动。它能让人精确测量这种运动的频率，即使存在虚假“噪声”。这种自相关技术表明，当黄蜂疲劳时，其翅膀的一次冲程会分为3个较小的冲程。每个阶段的能量含量可以使用自相关器来测量。
