为了提高图像加密的安全性,提出了一种多参数加权类分数傅里叶变换。
In order to increase the security of the image encryption, the weighted fractional Fourier transform with dilation parameter (PWFRFT) is proposed.
分析结果表明,使用基于部分参数加权平差的相对状态解算方法能够自主确定三星编队星座的相对状态。
The results show that the relative states of three satellites formation are autonomously determinate through using the method based on weighted partial parameters adjustment.
提出了函数的双参数加权平均的定义,证明了一个凸函数的双参数加权平均不等式,加强和推广了有关文献中的结果。
The two - parameters weighted mean in defined and an inequality for two - parameters weighted mean of convex function is prove, they have generalized and improved the results in literatures.
Well, there's another way to look at returns -those are the dollar-weighted returns -and the dollar-weighted returns actually do a better job of describing the experience of the group of investors that participated in these funds.
还有另一种考察回报率的参数,货币加权回报,货币加权回报实际上,是描述基金参与者收益的,一个更好的指标
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