timing the difference of frequency method频差倍增法
1.The paper introduces three methods to measure the stabilization of short-term frequency:beating method,mixing two frequency method,timing the difference of frequency method,and the method to deal with the data,and on the base of beating method and timing the difference of frequency method,bringing a new method,to advance the precision.简单介绍了3种常用的测量短期频率稳定度的方法:差拍法,双混频法和频差倍增法,以及对于数据处理所采用的方法,并且在其中的差拍法和频差倍增法基础上提出一种改进的方法,从而可以提高整个系统的测量精度。
3)Multiplication subtractive method倍增差示法
4)difference-in-difference analysis倍差法分析
5)triple standard difference method三倍标准差法
1.Considering the physical features and computing requirements of in-water profile spectral data,the cut-off point method is adopted to identify the outliers in in-water profile spectral data,and is compared with the other two common methods(the triple standard difference method,ratio method proposed in ProSoft software).针对水下剖面光谱原始数据的物理特点和计算要求,应用截断点法对其异常值进行判断,并与另外两种较常用的异常值判断方法(三倍标准差法、P roSoft软件中的比值法)进行了比较。
6)Dual wavelength multiplication subtractive specphotometry双波长倍增示差法
延伸阅读
倍差1.增加一倍后又减去原数的三分之一。即增加到原数的一又三分之二倍。
