查询词典 transform

Fractional Fourier transform procedures for the solution of fractional order equation provided some numerical method.

详细说明：分数阶Fourier变换程序，为求解分数阶方程提供了一些数值解法。

It is proved that the fractional Fourier transform has the cascade feature, and the optical transfer function is the special case of fractional transfer function.

证明了其具有分数傅里叶变换的级联性，指出常规傅里叶变换下的光学传递函数为分数传递函数的特例。

Fractional fourier transform ; hermite function ; time frequency analysis

分数阶傅立叶变换； Hermite函数；时频分析

Present a Ambiguity Function based on Fractional Fourier Transform. Its properties are studied. The application is discussed carefully that how to extract cube phase information by the Fractional Ambiguity Function.

给出了基于分数阶傅立叶变换的模糊函数，研究了它们的性质，重点讨论了分数阶模糊函数在三次相位信息提取中的应用。

Based on the normative fractional Fourier transform and the concept of the optical transfer function, using the linear system theory, the mathematic expressions of fractional transfer function in Fresnel diffraction system and Fraunhofer diffraction system are given respectively.

基于规范光学分数傅里叶变换，从光学传递函数概念出发，根据菲涅耳衍射、夫琅和费衍射定义，应用线性系统理论，分别给出了菲涅耳与夫琅和费衍射系统在规范分数傅里叶变换下的光学传递函数数学表达式。

Considering that the modular function of fractional Fourier transform of LFM signal is symmetrical, unilateral and strictly monotone, this method employs global-first-local-second search algorithm to obtain the main ridge slice of LFM signals.

该方法利用LFM信号的分数傅立叶变换模函数具有对称性，且单边单调的性质，采用先全局后局部方式搜索LFM信号主脊切面。

Considering that the modular function of fractional Fourier transform of LEM signal is symmetrical, unilateral and strictly monotone, this method employs global-first-local-second search algorithm to obtain the main ridge slice of LEM signals.

该方法利用LFM信号的分数傅立叶变换模函数具有对称性，且单边单调的性质，采用先全局后局部方式搜索LFM信号主脊切面。

This will improve the theory of fractional Fourier transform and guide the filter design.

此结论对完善分数傅里叶的知识体系具有重要的理论意义，同时为滤波器的设计提供一个新的理论指导。

This paper focuses on digital watermark algorithm which based on fractional Fourier transform.

本文开展了基于分数阶Fourier域的水印算法的研究与分析，主要工作如下：1。

The Fractional Fourier Transform has many excellent properties. It is widely used in nonstationary signal analysis and processing.

分数阶Fourier变换具有许多优秀性质，在非平稳信号的分析与处理上应用广泛。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。