In a photoelectric theodolite, the time delay of TV or IR miss distance will have a relative large influence on stability and tracking accuracy of the control system.

在光电经纬仪中，电视或红外脱靶量的滞后对控制系统的稳定性和跟踪精度都有较大的影响。

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We investigate the channel estimation algorithms based on tracking multipath time delay, a low complexity multipath time delay estimation method is proposed.

论文研究了基于多径时延跟踪的信道估计方法，并提出了一种低复杂度的多径时延跟踪方法。

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The velocity delay compensation is a effective method to improve the tracking precisions of the photoelectric servo systems.

速度滞后补偿是一种提高光电伺服系统跟踪精度的有效方法。

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When flights were delayed, the average delay was 55 minutes, down from 57 minutes in 2008, according to FlightStats, a flight-tracking service that collects data from airlines, airports and the Federal Aviation Administration.

WSJ: An Airline Report Card: Fewer Delays, Hassles Last Year, but Bumpy Times May Be Ahead