Propose mathematical expression of fractional cosine transforms based on different character values,give the reason of multiplicity and analyze the relationship of fractional cosine,sine transforms and fractional Fourier transform.
根据分数傅立叶变换的定义,分析了分数阶算子的分数化过程,给出了基于不同特征值的分数阶余弦变换的数学表达,指出了多样性的根源,在此基础了又分析了分数阶余弦和正弦变换与分数傅立叶变换之间的关系,找出了这种数学表达式下的它们具有的共同性质,找到了分数阶余弦变换多样性的统一。
By defining the generalized cosine,sine transform and using the pairity of function,the corresponding relations between the generalized cosine,sine transform and the generalized Fourier transform under full time domain are discussed,as well as the symmetry of the generalized cosine and sine transform.
通过定义广义余弦和正弦变换,利用函数的奇偶性,探讨了广义余弦、正弦变换与全时域下广义Fourier变换的对应关系以及广义余弦、正弦变换的对称性。
Efficient recursive algorithm for the inverse modified discrete cosine transform(IMDCT);
一种有效的修正离散余弦反变换递归算法
Fast and Parallel Algorithm for the Discrete Sine Transform and Toeplitz Systems;
离散正弦变换与TOEPLITZ系统的快速算法与并行算法
Research on sine and cosine transform of broad sense Fourier
广义Fourier正弦、余弦变换研究
Study on AC/AC Converter with 30kHz Sinewave Output;
30kHz正弦波输出的AC/AC变换器研究
Research of Digital Watermarking Based on a Set of Nosinusoidal Family Orthogonal Transforms
基于非正弦类正交变换的数字水印研究
The Wavelets Transform Based on Non-sinusoidal Matrixes and Application;
基于非正弦类矩阵的小波变换及其应用
Chaos anti-control of Buck converter based on sine wave disturbance
基于正弦波扰动实现Buck型变换器混沌反控制
Design of Fast Algorithm and Application in Digital Watermarking about a Set of Nosinusoidal Family Orthogonal Transforms;
M序非正弦类正交变换的快速算法设计及其在数字水印中的应用
fast discrete cosine transform
快速离散余弦变换编码
Parameter Estimation of SinFM SignalBased on Time-Frequency Ridge Extraction and Random Hough Transformation
基于时频脊提取-随机Hough变换的正弦调频信号参数估计
an electric current that reverses direction sinusoidally.
正弦地改变方向的电流。
An Algorithm for Computing DCT Using Improved Arithmetic Fourier Transform
离散余弦变换的改进的算术傅立叶变换算法
A WPT and DCT Based Bi-watermarking Algorithm
基于小波包变换和离散余弦变换的双水印算法
Digital Watermarking Algorithm Based on DCT and Arnold Transform
基于离散余弦变换和Arnold变换的数字水印算法
Quasi-Cooley-Tukey Type Algorithm for Discrete Cosine Transform
离散余弦变换的准库利-图基型算法
Blind watermarking algorithm based on DCT
基于离散余弦变换的盲水印算法研究
An adaptive image enhancement algorithm based on discrete cosine transform
基于离散余弦变换的自适应图像增强
Concentric circle detection based on chord mid-point Hough transform
基于弦中点Hough变换的同心圆检测方法
An Algorithm of MMSE Channel Estimation Based on DCT
基于离散余弦变换的MMSE信道估计算法