cosine component

Four kinds of discrete transform principal component regression methods were established by combining wavelet packet transform, wavelet transform, Fourier transform and discrete cosine transform with principal component regression. Calculating programs were designed to perform the calculation by discrete transform principal component regression methods.

将离散小波变换、小波包变换、傅里叶变换和离散余弦变换与主组分回归方法结合构成4种离散变换主组分回归方法，编制了离散变换主组分回归方法的计算程序。

Theblock-based discrete cosine transform ( DCT ) is a fundamental component of manyinternational image and video compression standards.

基于离散余弦变换 ( DCT ) 的压缩技术是目前大多数国际图像视频压缩编码标准中采用的一种压缩技术.

In order to eliminate the influence of heteroscedastic noise derived from hyphenated instruments, the cosine value of between target component spectrum and its projected residue is applied as a criterion to test the correlative component chromatographic clusters of different chemical fingerprints of traditional Chinese medicines ( TCMs).

为克服联用色谱仪器的不等性噪声影响，采用目标组分投影前后的光谱夹角余弦判据，判断不同的中药色谱指纹图谱的相关组分色谱峰簇。

A new north seeking method named Three Points Orthogonal Sampling is introduced to input the gyro with the cosine component of the Earth's horizontal spin velocity.

针对部分地区无法同时观测到“北斗一号”系统两颗工作卫星信号的情况，提出了仅利用一颗地球静止卫星实现快速寻北的思路。