参数变换

After extracting target image gradient,this mehtod can put image gradient into CPM,and then figure out the affine transform parameter of the precongnition model and target image.

最后采用模板图像轮廓线在电场化后的梯度图像中的最大能量熵值，利用遗传算法确定先验模板图像与目标图像之间的仿射变换参数，达到轮廓匹配的目的。

The parametric uncertainty is considered to denote the uncertainty in structure,and both parametric form and unmodeled dynamics are used to represent the influences and mechanism of uncertainty in unsteady aerodynamic forces.

将结构的不确定性考虑为参数形式，非定常气动力的不确定性考虑为参数和未建模动态两种形式，建立了不确定系统的线性分式变换模型。

To reduce the influence of an unsynchronized sample sequence on FFT and improve the precision of harmonic in a power system, the harmonic estimation based on interpolation FFT algorithm is proposed. The estimation based on five coefficients of Rife-Vincent window is discussed in detail and the formulas for estimating harmonic patameters are deduced.

由于快速傅里叶变换在非同步采样时存在较大的误差，无法直接用于电力系统谐波分析，本文提出了一种基于五项窗Rife-Vincent插值FFT算法的谐波参数估计的新方法，并推导了其谐波参数估计公式。

Base on the results computed by the Discrete Fourier Transform in demodulation and dispreading, the scheme can estimate accurately the parameters such as frequency, amplitude and initial phase of single tone jamming by analyzing two spectra lines having higher energy than other.

提出了一种精确估计多载波扩频系统中单音干扰参数的新方法，利用解调解扩中离散傅里叶变换的计算结果，通过选取其中能量最大的两条谱线进行分析，能够对单音干扰的频率、振幅以及初始相位等参数进行精确的估计。

In chapter three, with the effective combination of the prior preference, posterior preference and interactive method, and based on the theory of satisficing decision making and goal programming, an interactive method for solving static or dynamic multicriteria programming is devised. In the method, by constructing the simplexes in the set of parameters and transforming them, the local preference information is interactively quested in th process of decision making. The prior and posterior preference are used to speed up the process of decision making and overcome the false convergency which may be occured in pure interactive algorithms. This method can be used to cope with linear, nonlinear and dynamic multicritcria programming.

在第3章多目标数学规划的参数单纯形方法中，通过多目标数学规划的验先偏好方法，交互式方式与验后偏好方法的有效组合，在满意决策和目标规划的理论基础上提出了一种求解多目标静态及动态规划的交互式方法，该方法通过在参数集中构造单纯形并进行其变换，在决策过程中交互地索取决策者的局部偏好信息，并利用决策者的验先偏好来提高决策过程进行的速度，及利用决策者的验后偏好来克服纯交互式算法中可能出现的假收敛现象。

Five typical coals of low-to-medium rank (Huolinhe brown coal, Majiata non-caking coal, Datong weakly caking coal, Huozhou gas coal, Lingshi fat coal) and their macerals are prepared. The molecular structure and the oxygen functional groups of the selected coals and their macerals are studied by means of the conventional coal properties analysis, chemical analysis and the advanced instrumental methods such as FTIR,XRIK 13C-NMR.N XPS. The molecular structure characteristics, regularities and the results are discussed. Additionally, the total oxygen content and distribution characteristics of different oxygen functional groups in the raw coals and their macerals are studied.

本文中选取了中低变质程度煤中的五种典型煤种——霍林河褐煤、马家塔不粘煤、大同弱粘煤、霍州气煤、灵石肥煤以及它们的不同显微组分作为研究对象，采用了常规的煤质分析、化学分析法以及先进的仪器分析法如傅立叶变换红外光谱、X射线衍射、高分辨固体~(13)C核磁共振谱~(13C-NMR及X光电子能谱等方法，全面地研究分析了所选煤样的惰质组、镜质组的分子结构及煤中氧的赋存形态，得到所选煤样惰质组分的分子结构特征及结构参数，分析比较了惰质组与镜质组在分子结构上的差异性，并讨论了惰质组分的分子结构特征及结构参数随煤变质程度的变化规律；同时，通过研究得到了所选原煤样及其显微组分中总氧含量及各种不同类型含氧官能团的含量分布特征。

The results simulated with MATLAB demonstrate that the proposed mathematical model and connecting rod parameters are reasonable,all joint motions are correct and cotton-picking is realized.Based on the kinematics research of the single manipulator,the path planning and aiming to avoid obstacle will be investigated.

根据D-H法则和机械手的结构参数，建立了单机械手的运动学模型，采用反变换法求解运动学逆问题，利用MATLAB仿真，验证了所建模型和所有连杆参数的正确性，保证了机械手各关节的准确运动，实现了棉花的实时、高效采摘，并且可以在上述机械手运动学模型基础上开展轨迹规划和避障等技术研究。

It adopts the single chip computer control calculation meritorious service capacity, and parameters such as real power, reactive power, meritorious service rate element, tension fundamental harmonic virtual value and tension harmonious wave virtual value and so on these are separation to the calculation branch to the measurement that on the basis of the scattered integration formula in immediate future scattered Fourier transformation, the exchange basseted on to power system parameter sampling idea was achieved to adjust all the journey moreover the frequency alternating current frequency and the tension virtual value as well as the electric current virtual value in the way of software .

它采用单片机的控制运算功能，根据离散积分公式即离散傅立叶变换，基于对电力系统参数进行采样的思想，实现同时对一路工频交流电的频率、电压有效值、电流有效值的测量，用软件计算分析出有功功率、无功功率、功率因素、电压基波有效值、电压谐波有效值等参数。

It adopts the single chip computer control calculation meritorious service capacity, and parameters such as real power, reactive power, meritorious service rate element, tension fundamental harmonic virtual value and tension harmonious wave virtual value and so on these are separation to the calculation branch to the measurement that on the basis of the scattered integration formula in immediate future scattered Fourier transformation, the exchange basseted on to power system parameter sampling idea was achieved to adjust all the journey moreover the workmans frequency alternating current frequency and the tension virtual value as well as the electric current virtual value in the way of software .

它采用单片机的控制运算功能，根据离散积分公式即离散傅立叶变换，基于对电力系统参数进行交流采样的思想，实现同时对一路工频交流电的频率、电压有效值、电流有效值的测量，用软件计算分析出有功功率、无功功率、功率因素、电压基波有效值、电压谐波有效值等参数。

On the approximate uncorrelation property of DWT coefficients of LMSV process in the same scale and different scales, first the quasi maximum likelihood estimation method of parameters and the estimation method of volatility process of LMSV model are presented.

根据小波变换可将过程分解到不同的尺度上以及LMSV过程同一尺度下和不同尺度下DWT系数的近似不相关性，提出了建立局部似然函数的方法，又根据DWT系数和MODWT系数之间的关系，将局部似然函数表示为模型参数和局部小波方差估计的形式，并用该方法对中国股市收益进行了时变LMSV模型参数的估计。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。