In this method, eigen-decomposition does not have to be used, and the direction spectrum is the power spectrum in common sense (it can be used to estimate signal power).

本方法不需要特征分解，并且得到的是通常意义上的功率谱(可用于估计信号的能量)。

youdao

The advantage of this new technology is that you can vary the spectrum use in either direction to maximize for the traffic you are carrying.

FORBES: Move up http://i.forbesimg.com t Move down

Long working on opposite sides of the American political spectrum, James Carville and Mary Matalin are pulling in the same direction when it comes to promoting their adopted home of New Orleans as a Super Bowl host.

NPR: SUPER BOWL WATCH: Beyonce, Avocados, Practice