查询词典 inverse circular function

Formerly JINYUN Wangshi Tool Factory is a professional production of various specifications of high-speed steel circular saw blades, pull a knife, saw blade milling cutter, cutter blade on three sides, high-speed steel lathe tool, the insert tooth circular saw blade, rubber blade, blade of paper with a saw blade and the kinds of non-standard custom-made knives, cutting tools; with advanced production and testing equipment, perfect technology management, technical force is abundant.

浙江阿波罗工具有限公司是一家专业生产各种规格的高速钢圆锯片、拉刀、锯片铣刀、三面刃铣刀、高速钢车刀条、镶齿圆锯片、橡胶刀片、分纸刀片、带锯条及定做各种非标刀具、刃具；具有先进的生产和检测设备，完善的技术管理，技术力量雄厚。

The method of obtaining time delay parameters with the reverse access channel is discussed. The modified algorithms of classic correlation methods of TOA estimation are proposed. Noncoherently combining algorithm and group coherent combining algorithm are given. They decrease the computational complexity and are more suitable for implementations in practical systems. The leading edge detection algorithm is proposed to mitigate the effect of multipath in TOA estimation. Then the secondary search method is proposed, it can solve the matching issue of PN code in CDMA systems. The location algorithms based on LS are discussed; include circular trilateration with LS, hyperbolic trilateration with reference differencing, hyperbolic trilateration with sequential differencing and circular trilateration with TOA differences. The design and implementation of wireless location system based on TOA/TDOA in CDMA2000 systems are given. The location process is discussed, and the hardware and software implementation of TOA estimation are given. Finally, the wireless location system which uses TOA estimation and LS location algorithms above is tested in the real environment.

文中讨论了采用CDMA2000反向链路中的接入信道来获取时延的方法和过程；对TOA估计的传统的相关法进行了改进，提出了非相干合并相关法和分组合并相关法，减少了基于相关的时延估计算法的运算量，提高了算法的实用性，对算法进行了仿真和性能分析；采用边缘检测技术有效减少了TOA参数估计中的多径干扰，提高了时延参数估计的准确度；提出了一种TOA估计的二次搜索法，解决了多个定位测量单元同时进行TOA估计的PN码匹配问题，进一步了提高TOA估计的精度；在采用时延值的定位算法中引入了基于LS的圆周法、基于参考差的双曲线法、基于相邻差的双曲线法和基于TDOA的圆周法，讨论了各算法的应用条件，进行了算法性能的仿真分析；给出了CDMA2000系统中的TOA/TDOA的无线定位的系统方案和实现流程，并对TOA值估计算法进行了软硬件实现，还对采用TOA估计算法、LS定位算法和定位系统设计方案实现的定位系统的进行了现场定位性能测试。

Double circular arc gears are the complex special helical gear, and the design of the profile parameters is very flexible. Therefore, in this dissertation, it is very important to study the tooth profile parameters optimum on double circular arc gears by means of modern design method and computer technique.

双圆弧齿轮的齿轮参数对齿轮传动的动态传动性能产生重要的影响，由于双圆弧齿轮的轮齿是一个空间螺旋体，形状非常复杂，因而利用先进的设计计算方法和计算机技术对双圆弧齿轮参数进行研究具有特别重要的意义。

The shape is the combination of hexagon, circular, hexagon, triangle, hexagon and circular, shape from top down.

造型由上而下依序为六角形、圆形、六角形、三角形、六角形、圆形。

The test results demonstrate the circular polarization degree of output light of this optical circular polarization modulator is above 99.9%.

最后的光圆偏振度测试结果表明，本论文设计的调制器输出光的圆偏振度高达99.9%。

The test results demonstrate the circular polarization degree of output light of this optical circular polarization modulator is above 99.9%.

最后的光圆偏振度测试结果表明，本论文设计的调制器输出光的圆偏振度高达99.9%。来源：ABC6a论文网www.abclunwen.com

Studies on circular polarization fiber laser gyroA circular polarization fiber laser gyro is proposed.

圆偏振光光纤激光陀螺的研究提出一种圆偏振态工作的光纤激光陀螺。

Let G be the domain whose inverse image is the cross section of u definedin (H1) where the mapping is affine,g and ψ are smooth functions and g＞0,thenthere is a unique smooth convex-monotone function which satisfies the followingproblem 〓Furthermore,if 〓 where C is a constant,ψis an affine function,〓 is astrictly interior sub-domain of G in the sense of"parabolic distance",then

若G为按（H1）中定义的u的截影经仿射变换而得的区域，g和〓为光滑函数且〓，则〓存在惟一的凸单调光滑解。若〓常数，〓仿射函数，〓为G在"抛物距离"下的严格内子域，则

Firstly, the approach formulates a cost functional to turn the inverse problem into a constrained minimization problem according to least squares criterion, then the resulting constrained minimization problem is transformed into an unconstrained minimization problem by using a penalty function technique, and then the closed Fr chet derivatives of the Lagrange function with respect to the properties are derived based on the calculus of variations, finally, one can solve the resulting problem by using any gradient-based algorithm and the finite-difference time-domain method.

该方法首先以最小二乘准则构造目标函数，将逆问题表示为约束最小化问题；接着应用罚函数法转化为无约束最小化问题；然后基于变分计算导出闭式的拉格朗日函数关于特征参数的Fr chet导数；最后借助梯度算法和时域有限差分法迭代反演德拜模型参数。

If mark the probability density function of continuous random variable X and continuous random variable leave each other, then when,there is , there is inverse function of .

Theorem 如果将连续型随机变量和连续型随机变量的概率密度函数分别记为，则时有：，这里是的反函数。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。