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Based on the characteristic of multi-resolution analysis of wavelet transform, pitch detection algorithm with the combination of wavelet transform and weighted autocorrelation function is proposed here.

3基于小波变换的多分辨率分析特性,提出了小波变换与加权自相关函数相结合的基音检测算法。

In order to solve this problem, the paper presents a so - called Bi - watermarking Algorithm Based on Wavelet Packet and DCT transform.

针对这一问题,该文在结合小波包变换和离散余弦变换的同时,在图像小波包分解后的低频和高频部分选取适当系数分别嵌入同一个水印。

Results showed the wavelet transform is a more efficient method in comparison with Fourier transform.

结果表明,小波变换的分析方法较传统的傅立叶变换更为有效。

Then is the property of fourier transform detally,it contains linar, symmetry,uncover,switch,time-move,frequency-move,time-differentialcoefficient,frequency-differential coefficient,time-intergrate, frequency-intergrate,odd even, theorem of Parseval ,and theorem of convolution,and make testify to some property,some have the example.

接着详细概括了傅立叶变换的性质,即线性、对称性、折叠性、尺度变换性、时移性、频移性、时域微分性、频域微分性、时域积分性、频域积分性、帕塞瓦尔定理、奇偶性及卷积定理等,对某些性质相应的做了推导,并附有适当事例。

This passage study how to produce game using VC programming and three-dimensional geometric techniques, mathematical change and geometric figure techniques firstly, and mastered that how to use API interfaces for achieving the window and the transmission of information as well as coordinate system, the normal line, texture, coordinates and so on.

本文首先研究了利用VC编程以及立体几何技术,数学变换和几何图形技术来制作游戏的方法,掌握了利用API接口创建窗口实现消息传递以及对坐标系,法线,缓存,坐标变换的知识。

It is shown a new way for fast implementation of CWT based on amplitude modulation techniques for generating wavelet chain.

该方法利用幅度调制技术产生小波链实现小波变换,为小波变换的快速实现提供了新的途径。

First,the formulas and signification of decimation and interpolation are studied in the fractional Fourier domain.

可以看到,将分数阶Fourier变换的变换阶数取为π/2,便得到了与传统频域多抽样率理论完全一致的结果。

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。

In this paper,a new image denoising algorithm via doubly local Wiener filtering with windows based on Stationary Wavelet Transform with the Dual Tree Complex Wavelet Transform is proposed.

提出了一种基于静态小波变换和对偶树复小波变换的加窗的双重局部维纳滤波图像去噪算法。

In this paper, a speckle reduction method for Synthetic Aperture Radar images based on Dual Tree Complex Wavelet Transform is proposed, for the DTCWT has approximate shift-invariant and good directional selectivity.

利用双树复数小波变换(Dud Tree Complex Wavelet Transform, DTCWT)的近似平移不变性和多方向选择性,提出了一种基于DTCWT变换的SAR图像嗓声抑制方法。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。