cholesky

三节点板多边界条件自由振动和静力分析，能够自动生成模型。(Three-node shell boundary conditions free vibration and static analysis, can automatically generate the model.)

CRC check for WLN frame word！

超级声光多彩灯，很有意思的一个源代码，希望对大家有用。(Super sound and light more lights, it is interesting to a source code, want to be useful to everyone.)

2维FDTD下的对称阵子电场分布，点源位于中心，采用PML边界条件(2-D FDTD electric field under the symmetric distribution of stream)

基于子空间算法的ofdm系统半盲估计，希望对信道估计的同仁有帮助！(subspace algorithm based on the semi-blind system ofdm estimate, and I hope to channel estimation colleagues help!)

matlab code for slm in the ofdm system .OFDM is a frequency-division multiplexing (FDM) scheme used as a digital multi-carrier modulation method. A large number of closely spaced orthogonal sub-carrier signals are used to carry data on several parallel data streams or channels.

matlab源代码，很好的用得 很好的东东哦个(matlab source code, very good with very good Dongdong Oh months)

图像分割的GVF模型的MATLAB源代码，在gvf_v5.zip中，另有经典snake模型的代码(Image segmentation of GVF model of MATLAB source code, in GVF v5. Zip, another classic snake model code)

在运载体运动情况下,提出了一种适用于捷联惯导系统(SINS)初始对准的新算法,该算法以惯性空 间为过渡参考基准,即建立了初始时刻惯性坐标系(i0系)和初始时刻捷联惯组惯性坐标系(ib0系)两个惯性坐标 系。将捷联惯组坐标系(b系)与导航坐标系(n系)之间的初始对准姿态矩阵的实现分解为三步骤:(1)通过地理 位置和初始对准时间求解i0系至n系的变换矩阵 (2)通过惯导比力方程变形,引入测速仪速度辅助,求解从ib0 系至i0系的常值变换矩阵 (3)使用姿态更新算法实时计算b相对于ib0系的变换矩阵。最后,载车运动环境下的 初始对准试验结果表明航向角对准精度达到了0.1b(1R)。 (On the moving base, a new initial alignment algorithm for strapdown inertial navigation system (SINS) is proposed. In this algorithm, two special inertial frames, the initia-l time inertial frame (i0frame) and the initia-l time SINS body inertial frame (ib0frame), are defined and are selected as transition reference frames. The calculation of initial alignment direction cosine matrix (DCM) between SINS body frame (bframe) and nav- igation reference frame (nframe) is expanded into three parts: (1) the DCM betweeni0frame andnframe is easily obtained via local geographical coordinates and initial alignment time (2) by expressing SINS specific force equation inbframe and by the aid of external velocity log, the constant DCM fromib0frame toi0frame is achieved (3) attitude updating using gyro samples gets the DCM betweenbframe andib0frame. In the end, some vehicular tests are carried out on the moving base and the accuracy of azimuth reaches about 0.1b(1R). )

对粗曲线细化处理，对图像进行平滑去噪，中值滤波去噪，数学均值去噪。(Crude curve refinement processing, image denoising, the median filter denoising, mathematical mean denoising.)