查询词典 wavelet

The characteristic value of the pulse signal is drawn according to its wavelet transform.

利用小波变换提取了脉搏信号的特征值。

A chironomid larvae images recognition method based on wavelet energy feature and improved KNN is developed.

提出了一种小波分析与改进KNN相结合的红虫图像识别方法。

In accordance with the characteristics of the organisms, this paper studied chironomid larvae images recognition method based on wavelet packet decomposition and Fuzzy Support Vector Machine.

该方法采用多层小波包分解提取子图像的能量特征，同时结合生物图像颜色特征构造特征向量，然后选择模糊支持向量机作为分类器进行识别。

The wavelet analysis can divide signals into different frequency bands and realize the in choate signal decomposition and extraction.

摘 要：小波分析能将信号划分到不同频段内，实现微弱故障信号的分离和提取。

In this thesis presents an improvement method of direct thrust control system performance, which based on study and analysis of choice function and algorithm of Wavelet analysis.

直线电机是一种将电能直接转换成直线运动，而不需要通过任何中间转换机构的新颖电机，具有广阔的应用和发展前景。

The cross-wavelet transform method is adopted to study the multi-time scale correlations between the winter temperature, the summer precipitation in Northwest China and the Arctic Oscillation Index over the same period, in order to investigate the relationships between climate change in Northwest China, the AOI, and the Eurasian zonal circulation index in recent 56 years.

运用交叉小波方法分析了近56 a来我国西北地区气候变化与北极涛动指数、欧亚纬向环流指数之间的联系，讨论了西北地区冬季气温和夏季降水变化与同期AOI之间的多时间尺度相关。

Based on two-dimensional tensor product B-spline wavelet on the interval, a class of flat shell elements was constructed with good performance.

基于二维张量积区间B样条小波，构造了一种性能良好的小波平板壳单元。

The speaker recognition system using wavelet neural network as the classifier is constructed in this paper.

在此基础之上，将小波神经网络的模型引入到识别系统中。

This paper illuminated that the signal non-isolated singularity of close-in faults cannot be characterized by using wavelet transform modulus maximum.

为此，人们相继提出了一系列新型超高速保护，如行波保护t'周、边界保护13，41等，利用线路上的高频暂态信号在sms内判别出故障的方向和区域。

It s found that wavelet transform is similar to the frequency response of cochlea, since both of them are proportional bandwidth filters.

经分析发现，小波变换是对人耳蜗频率响应的近似，二者都是一组比例带宽滤波器。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。