文章介绍了数理统计中实数或向量参数的正函数的后验平均、方差和预测密度的近似计算。

This paper introduces the approximate calculation of real number's or of vector parameter positive function's posterior mean, variance and forecasting density in mathematical statistics.

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通过对近场空间协方差矩阵进行修正，用重构在相同方位上的远场近似空间协方差矩阵确定声源方位角。

By using the reconstructed far-field approximation space covariance matrix at the same bearings from the revised near-field space covariance matrix, the bearings of multiple sources can be obtained.

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通过长程情况下的马尔科夫近似，得到了互相关函数，对数振幅和相位协方差函数。

According to the Markov approximation under a long haul condition, we get the inter-correlation function, log-amplitude and phase covariance function.

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