It can also modulate the laser intensity by acoustooptic effect, and control the central frequency of the device.

也可以用声光效应实现激光强度的调制，而用电光效应来控制器件的中心频率。

youdao

The phase balance of the central frequency can ensure the accuracy of the correlation phase, and the residual phase error will only reduce the coherency.

实现信道中心频率的相位精度就可以保证干涉相位的精度，而通道内的残余相位差只会引起干涉相关度的降低。

youdao

In radar signal processing systems, the central frequency and bandwidth of clutter must be accurately estimated to suppress clutter and prevent target whitening.

在雷达动目标检测等处理中，为了有效抑制杂波，并防止目标白化，首先需要对杂波谱中心和谱宽进行有效的估计。

youdao

Another trend that he says concerned him: the central role high-frequency firms play in the trading of exchange-traded funds.

WSJ: High-Speed Trading in the Spotlight

The exact cause of the Flash Crash of May 6, 2010 will most likely never be known, but most believe the use of high frequency trading as being a central culprit (no matter what the SEC might say).

FORBES: High Frequency Trading in Congress

Initial high-frequency data for September, though, point at a recovery in EM central bank demand for the common currency.

FORBES: EM Central Banks To Gobble Up Euros After Sharp Drop Against The Dollar