In the discussion the role of signalduration in vowel identification and in pitch differentiation was compared.
文中比较了信号时程的长短在元音识别中及在声音音调辨别中的不同作用，并讨论了差异的原因。
2
It is shown that the two methods have almost the same performance which improves as the signalduration or total transmitting power increases.
同时可得两种方法估计性能非常接近，且估计性能随信号持续时间和发射功率的增加而改善。
3
Realistic signals are made by summing sine waves of lots of frequencies, so that after some finite number of wavelengths they interfere destructively and you get a signal of finite width and duration.