The designed lead, lag, lag-lead and PID controllers have same form and extensive practical value.

设计的超前、滞后、滞后—超前和PID校正器，形式相同，实用价值大。

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This paper introduces the use of the tool SISOTOOL in MATLAB. Through an example, the detailed process of designing a lead-lag compensator is brought out.

本文介绍了MATLAB中SISOTOOL工具的使用，并以实例说明了用该工具设计超前迟后补偿器的详细过程。

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The expiration of the tax-credit may lead to a lag in purchases for the following months, and any rebound in prices may bring out some housing inventory hiding in the shadows of big bank balance sheets.

FORBES: If You Don't Own Home Builders, Don't Buy Them

Without a BUY rated stock in the BKX and with 19 of the 24 banks projecting slightly lower stock prices a year from now, regional banks should continue to lead stocks lower and will likely lag when stocks move higher.

FORBES: Bank Stocks: Too Big To Fail But Too Risky To Buy

History shows that retail-spending recoveries tend to lead economic recoveries, not investment revivals (which lag economic revival).

BBC: Can business lead the recovery?