查询词典 subband

Each of the subband signals is then fed into its corresponding subband array processor, of which the outputs are combined by the synthesis filter and recovered into wideband signal.

宽带接收信号经分析滤波器组分成若干子带信号，每个子带信号经各自的子带阵列处理器处理后由综合滤波器恢复成宽带信号。

Experiment proved the practicability and efficiency of this algorithm. We study a class of subband coding schemes allowing perfect reconstruction for a bidimensional signal sampled on the hexagonal grid.

辨析了张量积子波变换与六边形子波变换的特性，尤其是空间取向性的差异，六边形子波变换克服了张量积子波变换在频率域上的"某些方向不确定性问题"，提供了频率域上的尖角分解准理想模式。

By the method, we can obtain the convergence factor of each subband according to every subband statistical character driven by a standard Gaussian white noise. The hard threshold of every directional subband of each scale is determined by modifying the 3σ(or 4σ) rule in terms of corresponding effect factor.

该方法根据标准高斯白噪声作用在每个子带上的统计特性，得到每个子带的收敛因子；使用该收敛因子对标准的3σ(或4σ)准则进行修正来确定不同尺度不同方向子带的硬阈值；并在轮廓波域进行子带硬阈值处理之后，使用自适应维纳滤波进行后处理。

First, we divide the input signal into four non-uniform subbands via discrete wavelet transform. In addition, a nonlinear Teager energy operator is then utilized into each subband signals. We show that the TEO can decrease the influence of noise on subbands significantly. Besides, the other advantage is suitable for the result of subband auto-correlation function.

首先，离散小波转换将输入讯号分成四个不均匀大小的子频带，而在每个子频带上采用一种非线性的Teager能量运算(Teager Energy Operator， TEO)以有效抑制噪音在各子频带的影响，而另一优点就是有助於子频带自我相关函示(spectral auto-correlation function， SACF)之结果。

In this method, the energies and the generalized Gaussian distribution parameters are used to represent the Contourlet subband features.

在这种方法中，能量和广义高斯分布参数被用做Contourlet子带图像的特征。

At the same time, the simple independent and identically distributed GGD models can be more robust and efficient than subband-dependent GGD models.

研究表明，自然图像多重子带的边缘分布能充分地反映其特征，而广义高斯分布建模在变换域中被认为是对自然图像最逼近和最成功的边缘分布建模方式。

A transmitting entity performs spatial processing on data symbols for each subband with an eigenmode matrix, a steering matrix, or an identity matrix to obtain spatially processed symbols for the subband.

发射实体用本征矩阵、导引矩阵或单位矩阵对每个频率子带的数据符号进行空间处理，以获得该子带的空间处理符号。

For recognizing image with unknown parameter from the source of illumination and asymmetric illumination frontal image, it was proposed a normalization method of facial illumination based on wavelet Subband image, which concerns different characteristics of low subband and high subband.

对未知光源参数且具有左右光照不均匀的正脸图像，根据小波不同子带图像上的频率特点，提出了一种小波子带图像上的人脸光照归一化方法。

A motion compensated temporal filtering step between a previous reference frame A and a current frame B comprises in a first time a computation sub-step of the high frequency subband, followed by a computation sub-step of the low frequency subband.

在先前参考帧A和当前帧B之间的运动补偿时间滤波步骤包括首先计算高频子带的分步骤，之后为计算低频子带的分步骤。

The self-energy difference of two neighboring subband decreases with the increaseof subband energy levels.

即极化子的激发态越高，激发态的能量就越大，并慢慢接近于零。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。