原理

A brief introduction is given to the maximum entropy method,which is based upon the maximum entropy principle and maximum likelihood principle in information theory.

最大熵法是基于信息论的最大熵原理和最大似然原理的一种方法。

The present invention relates a method and apparatus for receiving signal in MIMO CDMA system, charactered in that: on transmitting side, transmit signal by at least two antennas; on receiving side, receive at least one antenna, and obtaining channel paraneters by estimation of channel, using the channel parenters and maximum likelihood principle into MIMO+CDMA system, solving the problem of receiving signal in multiple mobile environment in effect.

本发明为一种基于MIM0 CDMA的接收方法及装置，其特征在于，发射端：至少采用两个发射天线发射信号；接收端：至少采用一个接收天线接收发射天线发射的信号，并且通过对信道的估计获得信道参数，采用该信道参数和最大似然原理的步骤得到输出信号。本发明将ML原理应用于MIMO+CDMA系统中。

Chapter two introduces the concept of entropy in information theory, maximum entropy principle, and minimum cross-entropy principle.

第二章首先介绍了信息论中的熵、最大熵原理、最小叉熵原理。

The maximum principle and the feedback control law are obtained.

通过系统地应用法锥性质和变分原理，获得了外界对种群的影响率为控制变量的最优控制的极大值原理。

Based on the dual-beam interference principle and white light interference feature, this dissertation designs the SWLI surface 3D topography measuring system and analyzes the principle and characters different from that of traditional monochromatic light interference. According to different descriptions of the white light interference feature, the optimal interference point extracting algorithms are classified, analyzed and compared in detail. In the light of the design rule of improving measuring precision and speed simultaneously, two new types of algorithms, named Feature Matching algorithm and Intensity Contrast Moving Window algorithm, are designed to acquire good results according to practical conditions.

基于双光束干涉原理及白光干涉特性，本文设计了扫描白光干涉法表面三维形貌测量系统，分析了该方法区别于传统单色光干涉测量的测量原理及特点，根据对白光干涉特征不同的描述方式对最佳干涉点提取算法进行了分类、分析与比较，并在提高测量精度与测量速度设计原则的指导下，根据测量系统的实际条件设计了两种新的算法：特征匹配法和对比度移窗法，在实际测量中达到了比较好的测量效果。

Week 5 Energy of mechanical wave, Huygence principle, supposition principle of wave, wave interference.

第5周 机械波的能量。惠更斯原理；波的叠加原理；波的干涉。

The method of multiple models approximation using self-organizing map neural network is analyzed. The mechanism of this method is different to that of approximation method using other kinds of feedforward neural networks.

针对基于自组织映射神经网络的非线性函数逼近，研究其方法和原理，指出它与一般前向神经网络在逼近原理上的不同。

Using the generalized mixed variational principle of elastic mechanics, GMVP of Reissner plates is derived, and generalized mixed finite elements method of Reissner plates is established too.

用一般弹性体的广义混合变分原理，导出了适合 Reissner板弯曲问题的广义混合变分原理及其有限元广义混合法。

Then, according to this picture, the operation principle of the system is described and the acquisition and processing of the Moire Fringe grating signal are designed.

接下来依照这个方案图具体论述了系统的工作原理，并在该原理的基础上实现了光栅莫尔条纹光电信号的采集、处理。

The principle and realization of mono - and multi-node design are indicated and the seven - layer network protocol is analysed. A set of communication protocol fit for field operation is presented,and its principle and application are detailed.

阐述了从单个节点到多个节点的设计原理及实现，在此基础上分析了网络的七层协议，定义了一套应用于现场的通信规约，详细说明了此规约的通信原理及实际使用情况。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。