传统的GPS定位技术在定位卫星信号接收差的场合工作不可靠，通过DR算法可将GPS信号进行修正和补充。
Traditional GPS positioning technique is unreliable as it works on the occasion of insufficient satellite signal, and it can be modified and complemented by DR arithmetic.
本文对脑电信号产生的根源、脑电信号源定位的重要性以及脑电信号源定位方法进行了探讨。
In this paper, the source of brain electric signal, the importance of brain electric source localization and the method of brain electric source localization are investigated.
实验结果表明，小波变换无论是对信号的时间定位还是对信号的频率定位都优于傅里叶变换和短时傅里叶变换。
These result shows that wavelet transform is superior to Fourier transform and short time Fourier transform both in time and frequency orientation in signal processing.
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