相位的

Experiment proved that the method based on phase congruency is the one that is invariant to illumination and magnification, robust to noise.

对要匹配的两幅图像，先计算它们的相位叠合，把它们的相位叠合映射成256个灰度级，在这一对新图像上尝试FMI-SPOMF算法，结果比较满意。

The conventional discrete random phases by registers shifting method are replaced by the introducing continuous uniform distribution phases. The proposed method can produce high quality random signals and is convenient in the software programming.

采用连续均匀分布的随机相位代替原来以寄存器移位方式生成的离散随机相位，这不但提高了信号的生成质量，而且使编程过程更简单。

A universal analytic potential energy function is derived using the cosine function with a phase factor,which is suitable to be applied to the interactions between two atoms in a molecule or molecule and ion.5 kinds of common potential curves are obtained by adjusting phase factors.

利用一种带相位因子的余弦函数，导出了适用于双原子分子或分子离子间相互作用的普适性解析势能函数，通过调节相位因子可获得5种常见形态的势能曲线。

In this paper,a design method of two dimensional Linear Phase Nearly Perfect Reconstruction filter banks based on a new class of cosine modulation systems is presented,which can be described as follow: firstly,the Parks-McClellan algorithm is adopted for designing the prototype filter,then by employing cosine modulation,a series of analysis and synthesis filters can be obtained,accordingly a one-dimensional LP-NPR filter banks can be constructed;Secondly,cascading two one-dimensional LP-NPR filter banks in the form of tree structure and using the unimodular transformation,a two dimensional nonseparable LP-NPR filter banks can be obtained.

提出了一种基于一类新余弦调制系统的二维线性相位-近似完全重构滤波器组的设计方法，设计过程分为两个步骤：首先采用Parks-McClellan算法来计原型滤波器，再经过余弦调制能到一系列的线性相位分析和综合滤波器，从而可以构造一维LP-NPR滤波器组；然后利用树状结构来结合两个一维LP-NPR滤波器组，并运用单位模变换，可以得到二维不可分离LP-NPR滤波器组。

Because optic circuit used differentiating interferometer based on phase compress theory ,the system can not be effected by outside slow variety such as temperature. Compared with common interferometers ,the linearity range of this system was enlarged by 220 times for phase compress.

由于光路系统采用了基于相位压缩原理的微分干涉式结构，因此该系统不受外界缓变量的影响；与一般干涉仪相比该系统也因相位压缩而使工作的线性范围扩大了220 倍。

The result of simulation can provide reference to antenna designing. A method is given to compensate the dissymmetry.

分析了天线幅度、相位不对称对测量角误差的影响性质，可为提出天线设计的对称精度要求提供参考，并提出了天线幅度、相位不对称的补偿方法。

The detailed analysis of the dynatron which is the main noise source in the oscillatory circuit is also made, including how excitation affects the dynatron and crystal.

依据晶体管放大器的噪声模型分析合理选择了低噪声的元器件，对降低相位噪声和相位抖动的方法作了一些探讨。

The phase of the magnetic field in this startup winding is shifted from the phase of the mains power, allowing the creation of a moving magnetic field which starts the motor.

启动绕组磁场的相位随着电网的相位变化而变化，从而产生一个启动电机的旋转磁场。

First, based on phased array antenna's mono-pulse goniometry and separate coordinate technology about phase control, the antenna beam pointing error formula, caused by phase quantization error, is derived from linear array and circular array to planar array and cylindrical array.

首先以单脉冲相控阵天线测角原理为基本理论出发点，利用相位控制的坐标分离技术，基于线阵、圆形阵等简单形式的相控阵天线，推导了平面阵、圆柱面阵等相控阵天线由相位量化误差引起的波束指向误差公式。

A real signal can be fitted by a harmonic signal series to calculate the amplitude spectrum and phase spectrum.The relationship between the coefficient,phase angle of the harmonic signal and the amplitude spectrum,phase spectrum of the bispectrum is calculated by Fourier transform.

一个实信号可以用一个谐波信号序列来拟合，计算实信号的双谱，通过Fourier变换推算出谐波信号的系数和相位角与实信号双谱振幅谱和相位谱之间的关系，可以实现信号重构。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。