“余弦窗”是数学和信号处理中常用的一种窗函数，也称为cosine窗或window函数。它在频谱分析和滤波器设计中起着重要作用。本文收集了关于余弦窗的英语短句和例句，涵盖了各个方面的用法和应用场景，旨在帮助读者更好地理解和运用余弦窗。无论是学习数学、信号处理的学生还是从事相关领域工作的专业人士，都能从这些例句中获取到丰富的信息和实际应用的灵感。同时，通过阅读这些例句，读者还可以提升自己的英语表达能力，并加深对余弦窗的认识和理解。
余弦窗,cosine window
1)cosine window余弦窗
1.An improvedcosine window is put forward, which can reduce the spectrum leakage and can be easily implemented.提出了一种减少频谱泄漏,而又易于实现的改进的余弦窗,其核心思想是对一般的余弦窗函数施加一个指数m,根据对频率分辨率和幅值精度、旁瓣抑制的侧重不同,改变m的值,得到不同性能的改进余弦窗。
pared with availablecosine window with the same main-lobe width,convolution window has the lowest spectral leakage effect in harmonic analysis of the periodic signal.已知卷积窗比余弦窗具有更小的频谱泄漏,对卷积窗插值进行分析,计算推导显示当频率偏差δ为某一特殊值时,进行卷积窗插值能有效抑制频谱泄漏,计算精确度高。
英文短句/例句
1.Application of the Cosine Window Function in the Plane Wave Synthesis Technique余弦窗函数在平面波综合技术中的应用
2.The effect of 4-order Convolution window, Nuttall window, Blackman-Harris window and 4-term Class Ⅲ Rife-Vincent window on the errors of harmonic parameters estimation is compared by simulations.通过数值模拟,比较了四阶卷积窗与其它四项组合余弦窗对谐波参量反演误差的影响。
3.sine-cosine resolver正弦－余弦解算装置
4.On Calculation Formula of Sine Function and Cosine Function;关于正弦函数和余弦函数的计算公式
5.Research on sine and cosine transform of broad sense Fourier广义Fourier正弦、余弦变换研究
6.Sine-cosine ROM正余弦函数固定存贮器
7.Malus cosine-squared law马吕斯余弦平方定律
8.fast discrete cosine transform快速离散余弦变换编码
9.We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.用复数算术推导了正弦，余弦的加法公式。
10.Symmetry of Sine and Cosine Function Graphs;正弦函数图像及余弦函数图像的对称性
11.New Proving of the Law of Cosines and the Law of Sines in EnE~n中n维余弦定理和正弦定理的新证明
12.Perturbation Theorems for Exponentially Bounded C-Cosine Operator Functions and Intergrated Cosine Functions指数有界C余弦算子函数与积分余弦函数的扰动
13.The cos() function returns the cosine of a number.函数的作用是：返回一个数值的余弦值。
14.Quasi-Cooley-Tukey Type Algorithm for Discrete Cosine Transform离散余弦变换的准库利-图基型算法
15.is the cosine of the angle you want and must be from -1 to 1角度的余弦值，必须介于-1和1之间。
16.The bar directions are conveniently specified by direction cosines.杆的方向通常用方向余弦来表示。
17.This requires two sine-cosine resolvers.这就需要两个正余弦分解器。
18.The amateur orchestra played the National Anthem.那支业余管弦乐队演奏了国歌。
相关短句/例句
cosine window function余弦窗函数
1.In order to reduce the finite scanning plane truncation error in the measurements with phased array antennas, thecosine window function is introduced and applied in this case.为了减小相控阵天线平面近场测量中的有限扫描面截断误差 ,介绍了余弦窗函数并将其应用到相控阵天线平面近场测量中。
2.Thecosine window function is introduced and applied in the plane wave synthesis technique.本文介绍了余弦窗函数,并将其应用到平面波综合技术中。
3)cosine-class window余弦组合窗
1.The expressions of phase estimations are derived considering the long-range and short-range spectral leakage based on the characteristics of thecosine-class windows.为减小这类误差,提出一种基于频谱泄漏对消的谐波相角高精度估计算法,结合余弦组合窗时域和频域特性,综合考虑长、短范围频谱泄漏的影响,推导了基于余弦组合窗的插值FFT谐波相角计算式。
4)raised cosine windows升余弦窗函数
1.The algorithm based on guard interval can reduce the out-of-band emissions effectively by using theraised cosine windows.本文提出了一种基于加窗处理的算法,通过加入升余弦窗函数或者是Blackman窗函数,可以有效降低其带外功率辐射,且所带来的误比特率也没有较大的变化。
5)fourth power of cosine window function余弦四次方窗
1.The principium of NLFM Signal generation is expounded, and then the influence of Doppler-toler-ance of the signal, quantization digits and sampling frequencies on the digital pulse compression is analysed, by designing the waveform of NLFM signal on the basis of thefourth power of cosine window function.阐述了非线性调频信号产生的基本原理,并基于余弦四次方窗进行了非线性调频信号波形设计,分析了该非线性调频信号的多普勒容限及量化位数和采样频率对数字脉压的影响,仿真结果表明该非线性调频信号具有一定的优越性,并对其数字脉压的工程实现有一定指导意义。
6)Cosine[英]["k??sa?n][美]["kosa?n]余弦
1.Cosine Regression Purifying Method to Determine Positions of Least Square Centers in Different Cross Sections;截面最小二乘圆心位置的余弦回归提取法
2.The Inequlity for the weighted sum of cosine of interior angles in a convex n polygon.;凸n边形内角加权余弦和不等式
3.Implementation of Sine&Cosine Function Based on Look-up Ttable and Taylor Expansion基于查找表和Taylor展开的正余弦函数的实现
延伸阅读
Fourier余弦变换Fourier余弦变换Fourier cosine transformI议耐台余弦变换[I饭川份仪d理加田北而;Koc皿yc一uPe-o6pa”。a.e巾yp‘e]见I议州匕变换(Fou〔屺rtla瑙form).
