众文网1.英语翻译I.INTRODUCTIONAnon
在频射频转发器在所需要的频段以同样的频率接收信号，滤波后进行功率放大，再将信号转发出去.如果转发器的前级增益和天线之间的信号耦合太大，转发器就会产生我们不希望的震荡.可以用内反馈通路来补偿外部天线之间的耦合，以增加转发器的前级增益.该补偿称为“回声消除”.图1所示为标有在输入和输出天线之间的射频信号耦合的转发器.它由输入信号接收器和用反馈补偿进行回声消除的数字信号处理器构成.输入信号（无回声）用x(t)表示，其傅里叶变换用X（ω）表示.转发器的前级增益是输入增益，数字增益，输出增益共同作用的结果，分别用Gin、Gdigital、Gout表示.信号为v(t)，傅里叶变换用V（ω）表示，在Gdigital之前测得.外反馈耦合模型为.。
2.毕业论文的英文摘要翻译
花了我好长时间去查字典和校对啊，楼主能不能多加几分给我啊？
Digital image watermarking technology research
Abstract:
With the computer network technology and the rapid development and dissemination of copies of digital works become more convenient, while delivering a number of works of information security and the protection of copyright protection has become an urgent need to address the real issues. Digital watermarking is in the field of information security in recent years the rise of new methods to protect intellectual property rights. Digital watermarking technology is the information hidden an important component of the widely used in digital media copyright protection, have great prospects for development.
This paper first digital watermarking technology for the development of the status quo and its related technologies were discussed and then the introduction of Fourier transform basic theory, digital watermarking algorithm as the algorithm theoretical foundation and then used a Fourier domain based on the relevance of the test Watermarking algorithm to achieve the original image of the watermark embedding and extraction and finally the use of MATLAB software and the embedded watermark to the right to conduct the simulation and test in two different attacks, the security of the algorithm.
The algorithm combines Arnold scrambling methods, classic detection methods and related Fourier domain and embedded in the adoption of two embedded pseudo-random sequence is not related to the method, effectively raising the watermark security and relevance of the test Accuracy.
3.傅立叶变换用英语怎么说
傅立叶变换
Fourier transform更多释义>>
[网络短语]
傅立叶变换 Fourier Transform;Fourier transformation;FFT
离散傅立叶变换 DFT;Discrete Fourier Transform;GI
短时傅立叶变换 STFT;Short Time Fourier Transform;Short Fourier Transform
4.傅里叶变换相关翻译
非常广泛意义上来讲，傅里叶变换是一种系统的方式分解“通用”功能叠加到“对称”的职能。这些对称函数通常十分明确的（如三角函数黄大仙（ NX的）或办事处（ NX的） ） ，并往往与物理概念，如频率或能源。什么是“对称”是指将在这里留下模糊，但它通常会与某种形式的G组，这是通常（但并不总是） ，傅里叶变换是一种基本工具，研究组（和更准确的代表性理论的群体，这大致上介绍了如何可以定义一组概念的对称性） 。傅立叶变换也与线性代数中的主题，如代表性的载体作为一个线性组合的正交的基础上，或作为线性组合的特征向量矩阵（或线性算子） 。
还注意到，这是独一无二的分解；没有其他甚至职能Fe和职能等奇数的F =铁离子的。这是最基本的傅里叶变换相关的两个元素乘组（ -1 , +1 ） ，与身份有关的因素1的身份地图x → X在真正的路线，和其他元素-1相关的反射地图x → - X低。
理论中的偏微分方程，并在有关领域的调和分析，最重要的傅里叶变换是对欧氏空间所有函数f ：遥控→ ç ，还有平面波函数f ( x ) = cξe2πix ξ在ξ ∈路是一个载体（称为频率的平面波） ，第十ξ是点的位置之间的产品X和频率ξ ，并cξ是一个复杂的号码（其规模是振幅飞机波） 。事实证明，如果一个函数f是不够“漂亮” （如顺利和迅速减少） ，那么它就可以作为唯一的平面波叠加，在“叠加”被解释为一个整体，而不是现在的总结。更确切地说，我们的公式
5.英语毕业论文范文“how to improve the ability of english reading ”
Some people think that reading is a verysimple matter. You move your eyes along the line, and the author's message appears somehow in your mind. When a person is highly skilled as a reader, it does seem that something like that takes place. However, the actual reading process is quite complicated. Try to think back when you were first learning to read, or observe a young child learning to read. It is a very difficult, complex, sometimes, painful process. Reduced to its simplest elements, we might say that comprehension is a part of the communication process of getting the thoughts that were in the author's mind into the reader's, but how does one reader can get the idea clearly? It depends on the reading ability of the reader's. How can the readers make improvements in reading? There are many skills to improve one's ability of reading comprehension. One of the most important skills in reading is the knowledge of word .The number of the words you know determines the difficulty and complexity of the material you can read and understand. If you have an extremely limited reading vocabulary, you will be able to read only very simple material. Obviously, vocabulary forms a stumbling block for the poor reader. The more words you memorize, the faster you read the article. So, it is necessary to memorize words as much as you can. By the way, it should be realized that approximately half of all written English material is composed of the 300 commonest words. Certain words then have a very high occurrence and are used over and over again. Since the English vocabulary is so vast, you cannot hope to master vocabulary only by learning your lessons in the classroom. Reading of course involves much more than simply knowing the dictionary meaning of individual words. When coping with unknown vocabulary. You have to develop strategies, which will allow you either to discover the meaning of the words or at least to proceed further with the text in spite of not knowing the meanings of some new words. One of the efficient ways is guessing the unknown vocabulary. Guessing the meaning of words is a shortcut in reading. While reading in our own language, we usually have an unconscious habit of making logical inference as to the meaning of words based on the context. You can use the context to get the meaning and to help you develop the comprehension skills. To be a good reader, deducing the meaning of unfamiliar lexical items through contextual lines is necessary. In order to improve reading ability. It's essential to memorize words and master the ways of guessing the meaning of words, besides, when reading, you should catch the phrases as a unit of meaning and view the sentences as a unit of meaning. Sentences are the basic building blocks for writing something that will be read. A sentence, as a larger unit of meaning, is always about something--its subject--and always has a statement about the subject. The form of a sentence may be vary, but the subject and the statement about it are always there. The idea conveyed by a sentence will always come to you as a whole. So being familiar with various sentence patterns and being able to have a good sense of what is conveyed by a sentence, even a very long one with some clauses inside, will be helpful for a more mature and efficient reading. So do the paragraph and passage. But the paragraph and passage are more complex than the sentence. A paragraph has sentences that are connected with each other in some logical ways and a passage is the connection of the paragraphs.。
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