方根

二阶矩阵的n次方和n次方根

The n-th Power and n-th Root of 2 × 2 Matrix

n阶方阵的任意m次方根

An Arbitrary m Root of Square Matrix of Degree n

二阶方阵的n次方根

The n-th roots of 2 × 2 matrix

均方根信息滤波和平滑及其在低轨卫星星载GPS精密定轨中的应用

Applications of Square-Root Information Filtering and Smoothing on Orbit Determination of LEO Satellites with On-Board GPS Data

实现了均方根算法和FFT算法。

Rms algorithm and FFT algorithm have been achieved .

此外，根据最小均方根准则（LMS）设计了中频采样FIR滤波器。

Furthermore , an IF sampling FIR filter is designed according to LMS rule .

给出了五阶型约旦块的n次方根，并讨论它在矩阵开方中的应用。

N times squaring-roots of five stages ⅰ - type Jordan block was given and its applications in opening up Squaring of matrix was discussed .

作者介绍了X线照片均方根值（rootmeansquare，RMS）粒状度的测试原理及方法。

In this paper the principle and method of testing of RMS ( Root Mean Square ) graininess of radiograph were described .

主要指标屈光度，高阶像差均方根（RMS）值。

Main Outcome Measure Diopter , RMS value of HOA .

介绍了逆变器谐波电流均方根值最小的脉宽调制（PWM）。

This paper introduces the pulse wide modulation ( PWM ) based on minimum root-mean-square value of harmonic current of inverter .

光滑表面散射光的角度分布包含了表面的粗糙度信息，即散射光的分布与粗糙度的均方根值Rq和自相关长度1值有关。

The angular distribution of the scattering light from a surface contains infor-mation of the surface roughness , namely the rms value and the autocorrelation length .

利用遗传算法来避免BP算法的局部极小点，从而达到均方根误差全局最小点，也解决了BP算法的收敛慢的问题；

This algorithm could avoid the local minimum point , and achieve the minimum point of RMS error so as to solve the problem of slow restraint .

影响AFM测量图像质量的因素很多，本文从AFM扫描参数选择的角度，研究扫描参数对样品表面均方根粗糙度的影响。

Many factors affect the quality of surface image . In this paper , scanning parameters of AFM is discussed .

大部分安全标准对测试基本绝缘采用2U+1000伏作为基本公式，U为运行电压的均方根值。

Most safety standards use the 2U - 11000 V formula as the basis for testing basic insulation , where U is the operating rms voltage .

最大似然法和方根法计算HLA三座位单体型频率的比较单片机控制的微型集成锁相频率合成器

Comparison of EM and square root algorithms applied to estimate HLA-A-B-DR haplotype frequency Miniature Integrated PLL Frequency Synthesizer Controlled by Single Chip Microprocessor

cp/εn实验值的均方根偏离为±3.3%、然后用本方法对纯铜试样的比热进行了测试，并与文献所载作了比较。

The average square root deviation of experimental value of Cp / en is + 3.3 % . The specific heat of pure copper had been measured by this method and compared with literature .

原子力显微镜（AFM）图像显示，薄膜表面平整、致密且光滑，均方根粗糙度小于1nm。

The AFM pictures show that the films are compact and smooth .

对于醇与N，N-二甲基甲酰胺（DMF）体系，关联的均方根偏差小于1.01%。

The root mean square deviations ( RMSD ) of correlation for alcohol + N , N-dimethylformamide ( DMF ) systems are less than 1 . 01 % .

从磨削表面反射的光的强度与表面光度的均方根平均值σz（即Rq值）有关；

The intensity of the beam reflected from a given ground surface is found to be exponentially related to the " RMS Surface Finish " value σ Z ( Rq ) .

通过对步态加速度信号进行了数学建模，设计相应算法得到各类步态特征参数，包括步态周期、步调、步态加速度均方根、自相关系数、峰峰值、FFT等。

The gait characteristic parameters , such as gait cycle , cadence , the RMS of acceleration , autocorrelation coefficients , peak-to-peak values , FFT are determined .

运用生理信号处理方法，得到表面肌电信号的绝对值平均、均方根与Welch谱估计。

The SEMG indexes as MAV , RMS and Welch spectrum estimation were obtained with physiological signal processing methods .

不通风状况下，利用CFD方法得到的气温模拟值与实测值之间的平均相对误差和均方根误差分别为4.47%和1.34℃，模拟结果与实测结果吻合良好。

The mean relative errors and the root mean square error between simulated values and measured values of air temperature were 4.47 % and 1.34 ℃ under non-ventilation conditions .

用修正后的模型计算出的平均速度分布、均方根速度的分布以及雷诺应力的分布，均与直接数值模拟（DNS）的结果吻合较好。

The mean velocity profiles , the RMS ( root-mean-square ) velocity profiles and Reynolds stress profiles calculated by the modified model are consistent with the results of DNS .

试验后器件的几种主要性能均未受到影响，说明器件可承受均方根为6g的随机振动环境。

After testing the main performances of the device are not affected and acceptable stress of the device is 6g RMS .

研究了MIMOOFDM系统中最小描述长度（MDL）准则在均方根时延扩展估计中的应用。

This paper studies the application of minimum description length ( MDL ) criterion for estimating root-mean-squared ( RMS ) delay spread ( RDS ) for MIMO OFDM systems .

基于亚像素细分质心算法，针对各噪声的分布特点及规律，分别推导出各自的均方根误差，综合各项误差得到CCD噪声的星点定位精度模型。

Then based on the subpixel centroid arithmetic , RMS error of different noises was deduced respectively according to respective different noises distribution regular . At last , CCD centroid position accuracy model was received by synthesis .

同时，对对接结构进行能量优化后再打分，发现EM有助于打分函数挑选到距蛋白质晶体结构主链原子的均方根偏差（RMSD）较小的近天然构象。

In addition , the results showed that EM is conducive to the scoring function to select the near-native structures with a smaller RMSD .

改进方法同样适用于此类基于模m的n方根难题的其他签名方案，对于进一步设计具有实际应用价值的前向安全特殊数字签名方案也有一定的借鉴意义。

The improved methods are equally applicable to such other digital signature schemes based on n-th Root Module m hard problem . And these methods have certain guiding significance on further designing some forward-secure special signature scheme having practical application values . 2 .

该电子称通过片上串行通讯对同一采样点进行多次采样，再进行均方根运算获得高精度，其分辨率可达到mg级。

The same sampled point was sampled many times with the electron balance through the serial communication on the chip , and then root mean square was calculated to gain higher accuracy and make the resolution rate reach mg grade .

在退火温度达到500℃时出现了ZnO的衍射峰，薄膜表面被氧化。薄膜表面颗粒尺寸和均方根表面粗糙度随退火温度的升高而增大。

It is also found that film surface changes to ZnO after the film annealed at 500 ° C. The average surface grains size and root mean square surface roughness increase with increasing annealing and substrate temperatures .