sine function
英 [saɪn ˈfʌŋkʃn]
美 [saɪn ˈfʌŋkʃn]
网络 正弦函数; 正弦信号; 正弦函數
双语例句
- The Taylor series is also inefficient compared to the built-in sine function of a modern desktop chip.
泰勒级数的效率也无法与现代桌面芯片的内置正弦函数相比。 - Research on wavelet chaotic neural network with disturbance of sine function
带正弦函数扰动的小波混沌神经网络研究 - Through a lot of simulations, the exponential smoothing model was used to describe the trend part, and the sine function was adopted to describe the stochastic part.
建立的预测模型分为趋势项和随机项两部分，根据大量的数据仿真，采用指数平滑模型描述趋势项； - A new conclusion is put forward, in which the smooth degree of the data row can be enhanced by means of the arc-hyperbolic sine function transformation.
提出了“利用反双曲正弦函数变换提高数据列光滑程度”的新结论，获得了递增时间序列改善的自回归预测新方法。 - This paper proves that the smooth degree of a data row can be increased by transforming the counter-hyperbolic sine function.
证明了利用反双曲正弦函数变换能提高数据列的光滑程度，给出了改善的自回归预测方法，并且举例加以论证。 - For anyone that needs a little refresher course, the sine function gives the ratio of the opposite side of a given angle in a right triangle to the hypotenuse.
一些人需要复习一点数学课程，正弦的作用是给出在一个直角三角形中的一个已知角所对应的一条边与直角三角形斜边之间的比率。 - Preparation of Semi-solid Aluminum Alloy by Sine Function Method
Sin函数冷却法制备半固态铝合金 - Taking iterative convergence of sine function for example, the correction, efficiency and superiority of the algorithm are proved.
并以正弦函数的迭代收敛为例，证明了该方法的正确性，有效性和优越性。 - The color texture modeling which uses sine function was built.
利用正弦函数的变化规律对植物表面颜色纹理进行模拟。 - Symbol of operator is the function of operator acting on sine function.
算子作用于正弦波函数所得函数称为算子的象征。 - We develop an image enhancement method using fuzzy sets with sine function based on the Pal's fuzzy sets theory. Four images have been enhanced by the method and the performance of this method is evaluated in this paper.
本文在PAL提出的用模糊集合理论进行图像增强的方法的基础上，提出了一种用正弦函数进行图像模糊增强的方法，我们对四幅图像进行了处理，并给出了定量的描述结果。 - Sine function s and the sampling theorem
sine型函数和样本定理 - With the aid of few ROM the accuracy of the generated sine function signal can be improved even more.
辅以少量ROM则可以进一步提高输出正弦信号的精度。 - Cross correlation functions of the two measured signals are directly computed and some properties about correlation and sine function are adopted to separate the part noise and the useful signal. And so the capability to resist random disturbance and the measurement accuracy are improved.
该方法直接对两被测信号作互相关运算，并利用相关和正弦函数的一些性质，使部分噪声分量被有效地与有用信号相分离，从而提高了抗随机干扰能力和测量的准确度。 - In this paper, based on the orthogonality of sine function, a detection approach of generalized reactive current suitable for both the single phase and three phase active power filters is presented.
本文根据正弦函数的正交特性，提出了一种既适用于单相也适用于三相有源电力滤波器的广义无功电流检测方法。 - An attempt to offer a new treatment of end point error in precipitation titration by using hyperbolic sine function is given in this paper.
基于沉淀滴定基本原理，利用双曲正弦函数性质提出了一种处理沉淀滴定终点误差的新方法。 - For optimal model-reduction of large scale systems, up to now, the integral-square-error method has been developed for systems with impulse, power or sine function inputs only.
大系统的模型最优简化的积分平方误差法，至今仅仅对输入函数为脉冲、幂函数和正弦函数时有效。 - At first, it introduce symmetry regular-sampling and benchmark sine function table.
首先，阐述了对称规则采样法和基准正弦函数表； - Coefficient formulae derived belong to forms of the sine function.
所推导的系数公式都属正弦函数形式。 - The arbitrary shape wavefront distortion being composed of sine function of different spatial frequencies, it is natural to make analysis of PSD and the far field by using sine function as a example.
由于任意形状的波前畸变都可以由不同空间频率的正弦函数叠加组成，以正弦函数波前为例进行功率谱密度分析和远场分析。 - The advantage of the variable is presented and a sine function controller is constructed.
通过研究，提出了一个正弦函数形式的控制器。 - For variable structure control chattering problem, the design of the hyperbolic sine function instead of sign function of the gesture tracking devices.
针对变结构控制中的抖振问题，设计了采用双曲正弦函数代替符号函数的姿态跟踪器。 - The results found that the entanglement is a sine function over time.
结果发现，其纠缠度是一个随时间呈正弦变化的周期函数。 - It is very suitable for data signal process and applications in many field such as signal processing and image processing in that only two numbers,+ 1 and-1, and the same property with sine function and cosine function are included in the Walsh function.
由于它仅取+1和-1两个数值，比较适合用来表达和处理数字信息，又和正余弦函数有类似的性质，因而在信号和图象处理等许多领域得到了广泛的应用。 - After the concept of generating sine function, this paper introduces the etymological development of the sine function.
正弦函数的概念产生之后，本文引入了正弦函数的词源发展。 - It achieved the expression of fundamental positive sequence voltage and fundamental positive sequence current by using a few calculation of pending test signals multiplies with a cosine function and a sine function. The compensation of the non-fundamental positive sequence ingredients is established on this method.
该方法利用待检测信号与正弦和余弦参考信号的少量乘除法运算，快速获得待检测信号中的基波电压和基波电流表达式，为高效补偿待检测信号中的非基波分量奠定了基础。 - Then, the paper analyzes the spread of the sine function and development in China.
而后，本文整理了正弦函数在中国的传播与发展。 - This paper first describes the origins of the sine function. Then, due to the need for astronomical research, the Greek scholar established trigonometry, trigonometry which marks generated, the sine function has been further developed.
本文首先说明了正弦函数的起源，继而，由于天文学研究的需要，希腊学者建立了三角学，这标志着三角学的产生，正弦函数得到进一步发展。 - Chaotic neural network models with disturbance of sine function and wavelet function are applied in the optimization problems of the continuous function and TSP separately. The effect of different disturbance coefficient on finding the solutions of TSP with chaotic neural network is analyzed. 4.
将带三角函数扰动和带小波函数扰动的混沌神经网络模型分别应用在求解连续函数优化问题和TSP问题上，分析了不同扰动系数对混沌神经网络求解TSP问题的影响。