查询词典 tangent function

Compared with modified arc tangent function model, it is more reasonable for predicting the slope of the characteristic of the core at deep saturation.

相对于修正反正切函数模型，能更为合理地预测铁芯深度饱和后的特性。

Key words: artificial intelligence; particle swarm optimization; inertia weight; tangent function; arc tangent function

关键 词：人工智能；粒子群算法；惯性权重；正切函数；反正切函数

PSO algorithm and the function of the inertia weight are described. Using the characteristic of the tangent function and the arc tangent function for reference, two new strategies are produced.

首先分析了PSO算法惯性权重的作用，并借鉴正切和反正切函数的变化规律，提出了两种新的惯性权重改进策略。

Then, combined with the implementation of Arc Tangent function, FFT algorithm, Differential Positioning algorithm, and telecommunication module, the general proposal of algorithm module implementation is presented, and the design methods of practical algorithm module implementation is proposed, together with instances illustrating the advantage of standard algorithm modules.

接着，论文结合北斗用户机研制工作中开发反正切函数、FFT、广域差分算法、指挥机电文通信模块等算法模块的设计实例，归纳出算法模块实现的通用方案和实用化规范算法模块设计方法，并以若干案例说明搭建规范化算法模块的优势。

On the basis of variation characteristics of ship speed error model, a ship speed regulator using the on-line adaptive error model is proposed in this paper. The control scheme is based on back propagation multi-layer perceptrons adaptive neural network in which a modified hyperbolic tangent function is used as the activation function of an auto-tuning neuron and is updated by the steepest descent method.

在分析船舶航速误差模型变化特性的基础上，应用激励函数的自适应神经网络和最陡下降法的非线性优化技术，提出了自适应学习误差模型控制方法，应用于船舶柴油机调速器控制系统。

To overcome the false result with piecewise constant regions produced by the binary zero-crossing decision process, a hyperbolic tangent function is used to substitute the symbol function, governing softly the varieties of gray levels of pixels beside the zero-crossing of edges.

为了克服二值的零交叉决策过程导致的虚假的分片常数图像，利用双曲正切函数代替符号函数，柔和地控制边缘的零交叉点两侧像素的灰度值变化。

In this paper, hyperbolic tangent function method and its some extensions suchas sine-cosine method, extended tanh method, F-expansion method and Jacobi ellip-tic function method are summarized, the idea and technique of hyperbolic functionmethod are explored.

本文对双曲正切函数法及sine - cosine方法，扩展tanh函数法，Jacobi椭圆函数展开法， F-展开法等一些主要的双曲函数方法及其扩展进行了系统的归纳与总结，揭示了双曲函数法的构造思想与技巧。

Because the weights are determined by the correlation of code sequence and estimation error of channels, which can be nearly determined by system load factor, we determine the sub-optimum weights by system load factor through simulations, and substitute the hard-decision symbol function by soft-decision hyperbolic tangent function to decrease the risk of error decision.

由于加权因子取决于前级符号估计的可靠性。也就是取决于扩频码互相关系数与信道估计精度，在随机扩频系统中，估计精度可近似由系统负荷决定，因此可根据系统负荷决定加权因子，以很小的性能降低代价换取计算量的极大降低。同时，为进一步降低误判风险，使用带有斜率控制因子的双曲正切函数代替常规的符号函数。

This invented simplified algorithm is to use sectional linear judgement method or looking-up table method to replace the hyperbolic tangent judgement. The substance is to use sectional linear judgement function L or judgement function T of looking-up table to approach the hyperbolic tangent function tanb.

为了解决这个问题，本发明的双层加权并行干扰对消算法的简化算法用分段线性判决方法或者查表法来代替双曲正切判决，其实质就是用分段线性判决函数L或者查表法的判决函数T逼近双曲正切函数tanh。

The main creative achievements accomplished in this dissertation are as follows: 1. A new method to achieve nanometer-scale resolution for grating-based metrology is developed by improving the discrimination power of method of Computer Tangent Subdivision which makes use of the good linearity of tangent function in small range. 2. A new subdivision technique of moire fringes-Dynamic Tracing Subdivision is proposed.

在本论文的研究过程中，所做的主要创造性工作有：（1）提出了利用正切函数在小范围内线性度较好的特点，采用粗、精结合的方式，扩展计算机正切细分法的细分能力，达到纳米级的测量分辨率的新方法；（2）提出了一种新的莫尔条纹信号细分方法：动态跟踪细分法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了