cosine

In the flowing, an iterative channel estimation method using discrete cosine transform is proposed.

在此基础上, 利用离散余弦变换的特性,提出了一种基于DCT变换 的迭代信道估计算法.

At last use the cosine function computing the similar degree, and implement the spam filtering.

当接收到新邮件,根据向量模型和相关加权方法提取邮件向量,利用余弦函数计算两向量相似度.

Secondly, the level of cosine transform coding some of the improvements.

其次是对层次余弦变换编码部分的改进.

Discrete Cosine Transform and image compression.

离散馀弦转换与影像压缩法.

A linearization method to design biorthogonal cosine BCM filter banks is proposed.

介绍了一种用于设计双正交余弦调制滤波器组的线性化方法.

Besides, the relations among alldemonstrated by calculating the cosine value.

另外通过计算变量之间的夹角余弦值,本文讨论了变量之间的关系.

We have also studied the variance spectral configuration of surfacefield using DCT ( Discrete Cosine Transform ).

并采用了离散余弦转换( DCT ) 对其方差的波谱结构进行了讨论.

This paper studies the grating projective images compression technology based on Discrete Cosine Transformation ( DCT ).

文中研究了基于离散余弦变换的光栅 投影图 的压缩.

Let's now examine the simplest wave from where the profile is a sine or cosine curve.

现在让我们来考察最简单的波形,它的剖面图是正弦或余弦曲线.

For sinusoidal waveforms, equal to the cosine of angle of phase difference between voltage and current.

对于正弦波来说, 功率因子等于电压、电流位相差的余弦.

A linearization method to design biorthogonal cosine modulation ( BCM ) filter banks is proposed.

摘要介绍了一种用于设计双正交余弦调制 滤波器组 的线性化方法.

Aim To study some calculation formula of sine function and cosine function.

目的研究正弦函数和余弦函数的一些计算公式.

Familiar UWB pulses are introduced firstly, including Gaussian pulse, rise cosine pulse, etc.

首先研究了传统的超宽带脉冲的特性, 包括高斯脉冲 、 升余弦脉冲等.

A digital map watermarking algorithm based on discrete cosine transform ( DCT ) is presented.

设计了一个基于 DCT 的数字地图水印算法.

This procedure realize orthogonal transformation images, including Fourier transform, discrete cosine transform, Walsh transform.

本程序实现图像的正交变换, 包括傅立叶变换, 离散余弦变换, 沃尔什变换.

Each module was an arithmetical command such as add, subtract, multiply, cosine, sine.

每一个组件都是一种算数指令,诸如加 、 减 、 乘 、 余弦 、 正弦.

Formulas of inversion and cosine transform spectrum of gravity anomaly cylinderfinite stretched staircase were deduced.

提出利用余弦变换,研究规则体重力异常谱特征及反演方法.

The source code simulates BER of OFDM system implemented using discrete cosine transform.

源代码模拟误码率的OFDM系统实施使用离散余弦变换.

This paper presents an information hiding algorithm in Discrete Cosine Transform ( DCT ) domain.

提出一种在图像离散余弦变换 ( DCT ) 域内的信息隐藏算法.

The cosine rather than the sine is customarily used in this case.

在这种情况下,习惯上用余弦函数而不是正弦函数.

Must compensate for the cosine effect.

必须补偿余弦定律产生的错误.

There are sine cosine complete source code of the image can be used directly.

正弦余弦有完整的源代码的图像可直接用于.

Thetheory includes Euler angular algorithm, direction cosine algorithm, quaternion algorithm and rotation vector algorithm.

基本理论包括欧拉角算法 、 方向余弦算法 、 四元数算法和等效旋转矢量算法.

Cosine transform is widely adopted in image, video compression and pattern recognition.

余弦变换广泛应用于图像和视频的压缩编码以及模式识别之中.