A new tuning method which based on gain margin and phase margin is showed. And the stability of the controller is discussed.

介绍了基于增益裕度和相位裕度的整定方法，同时对其稳定性进行了讨论。

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For the purpose of reliable transmission, the system margin is increased blindly through enhancing the transmitter power or the antenna gain in link design.

为了使数据可靠地传输，链路设计中往往盲目加大发射机功率，提高天线增益来提高系统的余量。

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Because of leverage, the gain or loss may be greater than the initial margin deposit.

由于杠杆的原因，获利或亏损有可能高于投入的保证金。

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The incentive structure in the sport means that wrestlers on the margin of achieving a winning record have far more to gain from winning than opponents, not on the margin, stand to lose if defeated.

ECONOMIST: Economics focus

Mittal could expand into Arcelor's high-margin markets, Arcelor could gain from Mittal's low-cost production.

ECONOMIST: The battle for Arcelor is about more than steel

While Apple continues to increase iPhone sales and gain more smartphone market share, its gross margin is something to watch out for.

FORBES: With iPhone 5 Looming, Margins Are What Matter