考虑标准二维布朗运动在正象限锥形区域的占有时，得到其一阶矩和二阶矩的表达式。

The occupation time in a cone in the positive quadrant for a standard two-dimensional Brownian motion is studied, and its first and second moments are given explicitly.

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提出了一种基于分形布朗运动模型的S波段雷达海杂波分形维数提取方法。

Adopting the model of fractional Brownian motion, this paper presents the method of deducing Hurst exponent based on the observed sea clutter of S-band radar.

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提出了一种基于分形布朗运动模型的S波段雷达海杂波分形维数提取方法。

Adopting the model of fractional Brownian motion, this paper presents the method of deducing Hurst exponent based on the observed sea clutter of S-band radar.

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