查询词典 codebook

Theoretical analysis and experimental results suggest that its coding accuracy based on a N-sized code-book of size N N2 is comparable with that of VQ coding based on a N2-sized codebook,and much better than multi-stage VQ based on two codebooks of size N,while its computational complexity is much lower than the latter ones under equivalent accuracy obtained.

理论分析和实验结果表明：码书大小为N的线上投影法的编码精度与码书大小为N2的矢量量化法相当，并且明显优于用两个大小为N的码书构成的两级矢量量化法，而其码书生成和编码过程的计算复杂度均远远低于后者。

The experimental results show that the introduction of similarity probabilities can improve speech recognition and it is unnecessary to design a codebook as large as 256 codewords.

实验结果表明相似概率的引入有利于进一步提高语音识别率，同时发现大小为256个码字的码本是不必要的。

Before the search process, all codewords in the codebook are Hadamard-transformed and sorted in the ascending order of their first elements.

在编码前，该算法预先计算每个码字的哈德码变换，然后根据各码字哈德码变换的第一维系数大小的升序排列对码字进行排序。

By this step, lengthy codewords with many leading zeros, which are common in the codebook, are represented in a compressed form by the exponent and mantissa fields of the floating point result.

通过此步骤，在码本中常见的，具有多个前导零的长代码字由浮点结果的指数和尾数字段以一种压缩的形式表示。

If correlations between two codewords with four directions exist,one codeword will be deleted from this codebook.

该理论是将各个码字按四个方向垂直旋转后进行相似性检查。

Based on equivalent matrice and tree search, codebook-based precoding selection strategy is presented for four transmission antenna ports in the 3rd Generation Partnership Project long term evolution（3GPP LTE） system.

利用等效矩阵和树搜索方法，提出了第三代合作伙伴计划长期演进（3GPP LTE）系统中发射天线数为4的预编码码本选择方案。

The codeword of the initial codebook of the GLA algorithm trained by the PNN algorithm disperses in the whole input vector space,possesses the area with bigger input probability d...

仿真实验中，利用正态分布的随机数训练码书，恢复一段正态分布的随机数，采用Mahalanobis失真测度评价恢复数据的失真度。

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。