1) rotating factor
旋转因素
2) and factor rotation
因素旋转
3) rotation of factor axis
因素轴旋转
4) twiddle factor
旋转因子
1.
The advantage of this address generation scheme lies in that it generates fast the operation and twiddle factors address and further reduces the twiddle factors access times and compresses the twiddle factors storage volume in variable point FFT processor.
研究一种适用于VLSI设计的高速、低功耗快速傅里叶变换(FFT)处理器中操作数与旋转因子的地址快速生成方法。
2.
The butterfly arithmetic structures of three kinds of Cooley-Tukey radix-4 FFT algorithm and the simple calculation formulas for their common factors ( p ) of twiddle factor indexes are derived.
推导出三种Cooley -Tukey基 4FFT算法的蝶算结构及旋转因子指数公因子 p的简单计算公式 ,可显著减少求 p值的次数及单次 p值的运算量 。
3.
A simple method for evaluating the common factor p of the twiddle factor indexes in the correct order input DIF radix-four Sande-Tukey FFT algorithm is derived from in the paper.
推导出计算正序输入ＤＩＦ基４Ｓａｎｄｅ—ＴｕｋｅｅＦＦＴ算法旋转因子指数公因子ｐ的一种简单方法。
5) rotation factor
旋转因子
1.
Some FFT algorithms are analyzed and compared with each other in speed,resource and complexity,Radix 4 algorithm is selected and CORDIC algorithm is utilized to produce rotation factor whose number and word length are configurable.
方案在分析比较各种FFT算法的基础上,兼顾速度、资源和复杂度三个方面,选用基4算法,利用CORD IC算法产生旋转因子,点数和字长均可灵活配置,工程可实现性强。
6) factor rotation
因子旋转
1.
The principles of Independent Component Analysis(ICA) and factor analysis are given,and that the essence of ICA is factor rotation is presented.
解析独立分量分析和因子分析的基本原理,指出独立分量分析的本质是因子旋转,从理论上证实了Varimax和Orthomax等因子旋转与基于峭度的独立分量估计目标函数条件等价。
2.
Finally,some suggestions concerning research design,factor extraction, determining the number of factors,factor rotation,and factor scores are pres.
本文全面介绍了探索性因子分析的基本原理,阐述了其发生的机制及基本过程,对其在教育、心理领域应用中存在的问题进行了总结,并针对应用中样本容量和观测变量数目不够、因子求解方法的误用、因子数目的确定标准及因子旋转中存在的问题、因子值缺乏重复验证性、研究结果呈现形式不规范、过于依赖SPSS、缺乏主动性等问题提出了一些相应的建议。
补充资料：非密度制约因素(见密度制约因素)
非密度制约因素(见密度制约因素)
l焦非密度制约因素见生态因素、密度制约后
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条