second

采用Matlab，计算薄板的固有频率和主阵型，并绘制出频率响应曲线，是振动分析、振动控制的基础(Using Matlab, calculate the natural frequency and the main sheet formation, and draw the frequency response curve, is the vibration analysis, vibration control based)

粗糙集属性约简代码，可以运行，可以运用到不同场合，可作为参考(Rough set attribute reduction code can run, can be applied to different occasions, can be used as reference)

在HHT变换后，可用于计算平均周期，即用整个序列的长度分别除以极大值点个数和极小值点个之后求平均(average period prediction)

直接序列超宽带信号的功率谱密度，其中包括直接序列超宽带信号的产生以及时域频域波形(Direct-sequence ultra-wideband signal power spectral density, including direct sequence ultra-wideband signal generation and frequency domain waveform)

一篇关于Insar相位展开的文章，对面分析和各种经典算法和最前沿的算法比较(An article on the Insar phase of the article, the opposite analysis and a variety of classical algorithms and the most cutting-edge algorithm)

the theorem that the order of each subgroup of a finite group is a factor of the order of the group.

运用分水岭的算法对图像进行分割 是一种新的方法，运用此方法，还可以对重叠的细胞进行分割(WATERSHED SEGMENTATION)

LTE接收端 ZF 算法的 在 4天线条件下的求解算法----分块求逆，LDLH分解求逆(LTE ZF LDLH )

考虑雨衰 阴影 和多径影响，matlab编写的元胞自动机，未来线路预测,分析误差。( Consider shadow rain attenuation and multipath effects matlab prepared cellular automata, Future line prediction, error analysis.)

alamouti simulation procedures are the key to next-generation communications technology coding