logique

在matlab中将三维坐标转换成经纬度坐标或将经纬度坐标变成三维坐标(Matlab will be at three-dimensional coordinates into latitude and longitude coordinates or latitude and longitude coordinates into a three-dimensional coordinates)

辨识信号白噪声的产生，新手必看。希望对大家帮助(Identification signal generating white noise, Xinshoubikan)

算超越函数的cordic算法的matlab程序，仿真通过！(Count beyond the function of the CORDIC algorithm matlab procedures, simulation through!)

The optimization behavior of the self-adaptation (SA) evolution strategy (ES) with intermediate multirecombination (the (=I )-SA-ES) using isotropic mutations is investigated on the general elliptic objective function. An asymptotically exact quadratic progress rate formula is derived. This is used to model the dynamical ES system by a set of difference equations. The solutions of this system are used to analytically calculate the optimal learning parameter  . The theoretical results are compared and validated by comparison with real (=I )-SA-ES runs on typical elliptic test model cases. The theoretical results clearly indicate that using a model-independent learning parameter  leads to suboptimal performance of the (=I )-SA-ES on objective functions with changing local condition numbers as often encountered in practical problems with complex fitness landscapes.

捷联惯导系统放置在室内测试台上做静态测试，测试时间4500s。 1）取前180数据做粗对准（解析对准法）； 2）取第181s~900s数据做精对准（Kalman滤波法）； 3）从第901s开始做纯惯导解算； 4）用国军标的导航系统位置精度评价方法评估系统定位精度（分别计算CEP50 和 CEP95 下的定位精度）。(The strapdown inertial navigation system was placed on the indoor test bench for static test with a test time of 4500s. 1) take the first 180 data for rough alignment (analytical alignment method); 2) accurate alignment of 181s-900s data (Kalman filtering method); 3) pure inertial navigation solution is performed from 901s; 4) the positioning accuracy of the navigation system is evaluated by the method of position accuracy evaluation of the national military standard (the positioning accuracy under CEP50 and CEP95 are calculated respectively).)

用于提取小波特征的机械振动信号，很好地结合了特征提取和随机信号处理方法，附带数据，实测可用。(For extracting wavelet feature mechanical vibration signal, a good combination of feature extraction and stochastic signal processing method accompanying data, we found available.)

说明：  matlab命令大全，便于编程时随时查阅编程命令(Guinness matlab command for easy programming access )

some very usefull matlab codes for DCS

5x12 Font is included in 16 variants: - Assembler and C header (.asm / .h) - Horizontal and Vertical arranged bits (horizontal / vertical) - Mirrored and non-mirrored (MSB / LSB) - Left or top aligned, right-aligned or bottom (1/2). For fonts have the size of a multiple of 8 pixels in the corresponding direction, both versions are identical. Fonts higher than 16 pixels are only available in horizontal arrangement.

一篇很好的关于PDE的文章，涉及到了基本理论，实现方法，技术路线，值得看看(A very good article on the PDE, relate to the basic theory, methodology, technical line, is worth a look)