The optimal feedback gain matrix can be obtained by solving a static output feedback controller problem.

通过求解利用降维状态观测器的静态输出反馈，可得到降阶控制的最优反馈增益阵。

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While customer orders are still coming in, fulfillment is stalled because the warehouse server is having a network controller problem.

虽然客户订单仍然不断地提交进来，但订单执行却因为仓库服务器出现网络控制器问题而停止。

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The problem is that you need a new controller for each kind of content you serve.

问题是针对所服务的每种内容，都需要一个新控制器。

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Another explanation is a problem with the SD card controller software .

FORBES: Is Your Android Smartphone's SD Card Causing It to Crash or Lose Data?

On the tapes, First Officer Richard Hazen tells a Miami ground controller: "We've got a problem, " he says in a relatively calm voice.

CNN: FAA releases ValuJet air traffic control tapes

He doesn't bring good news: The problem is in the firmware of the display controller, but he adds that he's already talked to IBM, has arranged to have an address box sent to me so I can send the laptop in to Big Blue, and hands me a slip of paper with my IBM work order number on it.

FORBES: The Laptop Lament