MIT researchers developed one of the fastest software implementations of the Fourier transform, a technique for splitting a signal into its constituent frequencies.
MIT的研究者开发的最快的傅里叶变化，这一技术可以把信号分解为带有它自身成分的频率。
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The system mainly consists of a beam-splitting system, a linear CCD, a pulse laser synchronous signal generator, a sampling data card and a computer.