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发表于 2005-11-8 13:28:13
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继续!
The data each computer gets is in the form of a complicated wave, so the computer first does a Fourier transform on the data. A Fourier transform is kind of like taking apart a puzzle, you start with a completed picture and end up with smaller pieces that each make up part of the whole. A Fourier transform does this, but with waves. It takes a completed wave and splits it into smaller waves that each make up part of the whole. Each of these pieces is a sine wave with a different frequency.
每一个计算机被分配的数据是一个复杂的波的形状,所以计算机首先将数据进行一个傅立叶变化。傅立叶变化是类似于将一个难题分成一个个小的部分,你可以从完整开始,部分结束。傅立叶变化就是这样,但是它是按照波的情况。它将一个完整的波分成更小的波。每个小部分是有着不同频率的正弦波。
Once the computer splits the signal into sine waves with different frequencies, it compares the model for a pulsar signal with the sine waves your computer found. If there is a match, your computer sends a message back to the central server and the data is analyzed again by two other computers. If all three computers agree, researchers will further analyze that data to determine whether the signal is from a gravitational wave or a local disturbance. They do this by comparing their data to data from other detectors.
一旦计算机将信号分成一个个不同频率的正弦波,计算机就会将从脉冲星型号的模型得到的正弦波进行比较。假如匹配,你的计算机会向中心服务器发回一个消息,这个数据将被另外两台计算机分析,如果所有的三台计算机都相同,研究员将进一步分析数据,看是否信号来自引力波或者是局部干扰。他们会通过另外的监测器比较这些数据。
If your analysis doesn’t match the model, your computer sends that message back to the central server. The same data is analyzed by at least one other computer to check for mistakes, but if none are found then the data won’t be analyzed any more.
This analysis requires a lot of computer processing. That is why we need your help!
如果你的分析并不于模型匹配,你的计算机会会向中心服务器发回一个消息,这个同样的数据会至少被另外一个计算机检查,如果还是不匹配,那么这个数据将不会再被分析了。
这个分析需要许多计算机处理,这就是为什么我们需要你的帮助!
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Einstein@Home depends on private owners of PCs donating computer time. To participate in this worldwide project, all you have to do is install a small screen saver program on your computer. The program only runs when you're not using the computer or when you turn it on. Einstein@Home will not affect your computer's performance. Screen savers are available for Linux, Windows and Mac operating systems.
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Einstein@Home需要个人计算机贡献计算时间。来参加这个世界范围的计划,你所需要做的就是在你的计算机上装一个小的屏保。仅仅当你不用电脑的时候或是当你启动这个程序的时候,程序才会运行。Einstein@Home不会影响你的计算机性能。在Linux, Windows and Mac操作系统下屏保都可以用。 |
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