查询词典 interference function

The investigations in this thesis focus on several aspects as follows: We investigate the method that how to produce permutation matrix by using chaotic map, and get the method of image permutation based on chaotic map. This method can make original image to unorderly image to protect the true content of image. We investigate gray level mix function, and put forward a gray level mix function based on chaotic map. Because this function has chaotic characteristics, the image dealed with this function has very uniform histogram. Aiming at the contradiction between error robust and security on image encryption, we put forward a kind of gray level mix function including diffusion mechanism.

本文的研究工作主要集中在以下几方面：研究了如何利用混沌映射产生置乱矩阵的方法，给出了基于混沌的数字图像置乱方法，该方法能够将原始图像变成面目全非的杂乱图像，从而保护了数字图像的真实内容；研究了灰级混合函数，提出了基于混沌的灰级混合函数，由于该函数具有混沌特性，所以经过该函数处理后的图像具有非常均衡的灰级直方图；针对图像加密的错误鲁棒性与安全性之间的矛盾，提出了一种含有扩散机制的灰级混合函数。

Considering the actual surroundings and the characteristics of internal audit in our country,the supervising and examining function,certificating and appraising function,controlling function,risk early-warned function and counseling function should be as the mostly functions of internal audit.

就我国目前的环境和我国内部审计的特点来看，监督检查职能、鉴证评价职能、控制职能、风险预警职能和咨询服务职能应该是内部审计的主要职能。

The automatic meter readingsystem should have the functions: the data acquisition function, the set up parameters, the control to system, the advanced charge system and the protectionfunction; Below latter should realize the function: The data acquisition, the electric quantity initialization function, opening machine and closing machine function and power failure protection function.

计量方式选择多用户自动远传抄表系统和单项智能电表远传抄表系统，多用户自动远传抄表系统应具有如下功能：数据采集、参数设置、系统控制功能、系统预付费功能和保护功能；单项智能电表远传抄表系统应实现以下功能：数据采集、电量预置功能，开关机功能和掉电保护功能。

Radial basis function coupled with a polynomial basis function was used as a trail function, and a Heaviside function was used as a test function of the weighted residual method.

这种无网格方法采用径向基函数耦合多项式基函数来近似试函数，采用Heaviside函数作为加权残值法中的权函数。

Simulation results show that the method can eliminate paroxysmal multiple access interference efficiently and has excellent capability of anti-multiple access interference and high reliability.

仿真实验表明，提出的方法能够有效抑制阵发性多用户干扰，具有很强的抗多址(multiple access interference，MAI)干扰能力和较高的数值鲁棒性。

This paper researches the principal and normal structure of adaptive interference chancellor, discussing the LMS adaptive filter algorithm and it's anamorphosis algorithm that is used in adaptive interference chancellor.

本文研究了自适应干扰对消的原理和一般结构，讨论了用于自适应干扰对消的LMS自适应滤波算法及其变形算法。

Firstly, it discusses the principle of adaptive interference chancellor, including broad band signal and narrow band signal; Secondly, it analysises one common algorithm used in adaptive interference chancellor, that is, LMS algorithm and its anamorphosis algorithm especially normalized LMS algorithm pointing out their relationship. After then, the paper talks about the structure and reality of canceling broad band noise in narrow band signal and narrow band noise in broad band signal and gives it's result simulation analyzing the factors affecting the power of the algorithm. In the last party, it gives the hardware design and assembly language software design using TMS32OC3 1, including the result of simulating.

首先，本文讨论了自适应干扰对消的原理，并对窄带信号和宽带信号两种进行了分别分析；然后本文对自适应干扰对消中常用的算法—LMS算法进行了分析，同时也讨论了LMS算法的变形算法，尤其是归一化LMS算法，并指出了这些算法的相同和不同之处；此后，本文讨论了窄带信号中的宽带干扰对消和宽带信号中的窄带干扰对消的结构及实现方法并给出了住址的结果，分析了影响干扰对消效果的因素；在论文的最后，给出了用TMS320C31实现窄带信号中的宽带干扰对消的硬件设计和汇编程序设计，以及汇编语言程序的结果，并就此结果与高级语言程序的结果作了比较。

But this kind of open emission and reception system in High frequency communication has to face two challenges: firstly, natural interference from atmospherics and industry; secondly, tracing, blocking and multipath interference from enemy.

但这种开放式的发射和接收电磁波的通信，特别是在短波通信领域，不仅易遭到天电、工业等自然干扰，而且还要遇到敌方人为的跟踪、阻塞干扰以及多径等各种干扰。

The beat frequency can be thought of as an interference pattern in time, as opposed to the spatial interference pattern that is obtained with a passive Sagnac interferometer.

节拍频率可以被认为是干涉模式的时间，而不是干涉的空间格局是获得了一个被动Sagnac干涉仪。

The adaptive time-varying interference canceler is designed according to the estimated interference instantaneous phase.

5分析了压制式伪码调相干扰的形式及特点，定量研究了伪码调相干扰对伪码调相引信的影响。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样