gauss

实验三、四阶Runge-Kutta法求解初值问题，是我的实验报告。(The third experiment, fourth-order Runge-Kutta method to solve initial value problems, is my lab report.)

空间梁验证算例 算例1 计算一空间圆杆形悬臂梁，截面尺寸为，直径 厘米，长度 米，弹性模量 质量密度 。 (Spatial beam validation example calculation of a space for example a rod-shaped cantilever beam, cross-sectional size, diameter cm, length m, elastic modulus, mass density.)

为了实现DOA和时延的联合估计,提出了一个无线通信中高分辨率的联合角度和时延估计方法,该方法不需要对参数进行搜索,利用空时矩阵的特征向量和特征值分别估计DOA和时延,通过特征值和特征向量的对应关系,估计的参数可以自动实现配对, 只要各路径信号的DOA和时延不同时接近此方法都可以适用,与JADE-MUSIC,JADE-ESPRIT和SI-JADE算法相比,该算法具有较好的鲁棒性和较小的估计误差。仿真结果证明了该算法的有效性。 (In order to achieve the joint estimation of DOA and delay, proposed a wireless communications joint angle and high resolution delay estimation method, the method does not require parameters to search using the space-time matrix eigenvectors and eigenvalues​ ​ , respectively, and the estimated DOA delay, by the correspondence between eigenvalues ​ ​ and eigenvectors, the estimated parameters can be automatically paired DOA and delay of each path as long as the signal is not close to this same method can be applied, with the JADE-MUSIC, JADE-ESPRIT and SI-JADE algorithm, the algorithm has better robustness and smaller estimation error. The simulation results show the effectiveness of the algorithm.)

说明：  估计融合算法里面，经典算法CI算法的实现，针对了CV和CA模型(Inside estimation fusion algorithm, the classical algorithm CI algorithm, for the CV and CA model)

轮轨接触点扫描方法，用扫描的方法计算求得任意轮轨型面的轮轨接触点(Wheel-rail contact point scanning method, the method of calculation obtained by scanning any type of wheel and rail wheel-rail contact point surface)

伯格算法实现谱估计，不同阶数的AR模型功率谱估计(Berg algorithm spectral estimation, different order AR model power spectrum estimation)

利用GAS软件和Matlab编程实现空间统计分析,实现空间统计的过程(Use of GAS software and Matlab programming spatial statistical analysis, the process of spatial statistics)

Carbon dioxide properties according to Span & Wagner equation of state.

梁单元总体刚度矩阵组装matlab源程序(The beam element stiffness matrix of MATLAB general assembly source program)

道路车辆的故障诊断国际标准第四部分－－喷射标准(Road vehicles to international standards of fault diagnosis Part IV- jet standard)