基于二阶统计量，对在线分离复值混合信号法进行了研究。

Based on the second order statistics, an algorithm is proposed to separate mixed complex-value signals online.

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文中提出了一种划分断裂的方法，即重力异常线性构造信号法。

There is a new mathod of delimitating faults, that is gravity anomaly linear structure signal mathod.

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使用复解析信号法研究了束宽与频率无关的超短脉冲贝塞尔·高斯光束在自由空间的传输特性。

Using a complex analytical signal representation, the free-space propagation properties of ultrashort pulsed Bessel-Gauss beams whose waist width is independent of frequency are studied.

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