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By using the spatial finite sine and cosine transform, and the temporal Laplace transform, the existence of the analytic solutions of its initial-boundary problems in a boundedspace domain with Dirichlet and Neumann boundary conditions is derived.

利用空间有限的sine或cosine变换及时间Laplace变换，给出了该方程有限区间上带Dirichlet和Neumann边界条件的两类初边值问题的解析解。

Master sequence Fourier Transform computer, using the Fourier transform sequence of continuous signals, Discrete signal system response and frequency domain analysis.

掌握序列傅立叶变换的计算机实现方法，利用序列的傅立叶变换对连续信号，离散信号及系统响应进行频域分析。

Discrete Fourier transform and its fast algorithms as a basic transform in digital signal processing also have been widely used.

离散傅立叶变换及其快速算法FFT作为数字信号处理中的基本变换，有着广泛的应用。

In this paper we first present some essential properties for continue fractional Fourier transform and discrete fractional Fourier transform.

首先讨论了连续分数傅立叶变换和离散分数傅立叶变换并提出了一些重要性质。

Fast Fourier transform and discrete cosine transform a simple, and it is only a small problem, not repaired, huh.

快速傅立叶变换和离散余弦变换的简单实现，有一些小问题，就不修复了，呵呵。

A fast computer implementation of the Discrete Fourier Transform is known as a Fast Fourier Transform.

众所周知，在遥感图像中，在不同频谱的多谱数据之间可能存在显著的相关性。

Based on pretty performance of fractional Fourier transform, discrete fractional cosine transform adaptive filtering algorithm is proposed.

针对分数阶傅里叶变换的分数阶次不确定问题，提出一种寻找最优分数阶次的方法：建立分数阶次和失调的关系曲线。

Ordinary image signals in discrete Fourier transform and inverse transform.

详细说明：普通的离散图像信号的傅里叶变换和逆变换。

This procedure is based on discrete cosine transform DCT-formula implemented procedures to help beginners understand the discrete cosine transform process.

详细说明：这个程序是根据离散余弦变换的公式实现的DCT变换程序，能够帮助初学者理解离散余弦变换的过程。

PSNR.-images of two-dimensional discrete wavelet transform, transform Series is greater than or equal to 3, and reconstructi...

对图像进行二维离散小波变换，变换级数大于等于3级，并进行重构，最后计算重构图像的峰值信噪比

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