math_eng_chap03

Numerical solution of the state equations

说明：  压缩感知的一个应用实例，对压缩后的信号用BP算法重构(An application of compressed sensing, on the compressed signal with the BP algorithm has)

跳频通信中模式相加的原代码（配合Mmod.m，reMmod.m,U.m）一起使用。（附MATLAB库函数说明）(The sum of frequency-hopping mode of communication in the original code (with Mmod.m, reMmod.m, Um) use. (With MATLAB library function description))

基于MATLAB的随机子空间算法，对唯输出数据进行分析，可以很好地识别出系统的模态参数。(Based on stochastic subspace algorithm based on MATLAB, the only output data for analysis, can be well identified modal parameters of the system.)

图像检索的 matlab代码 方法常见(Select the image bitmap file you wish to search for in the databse Press Select. Press Search.)

说明：  建立无人机动力学模型，飞控系统模型，并仿真测试(develop a uav model and related flight control model,test and simulate)

用功率谱的方法求系统频率特性，采用MATLAB仿真，输入信号为Chirp信号和Multitone信号。(Using power spectrum method for frequency characteristics of the system using MATLAB simulation, the input signal for the Chirp signal and Multitone signal.)

说明：   模拟退火算法求函数 f(x)的最小值点， 且 l <= x <= u f为待求函数，x0为初值点，l，u分别为搜索区间的上下限，kmax为最大迭代次数 q为退火因子，TolFun为函数容许误差 算法第一步根据输入变量数，将某些量设为缺省值( Simulated annealing algorithm of a function f (x) the minimum point, and l &lt = x &lt = u f is the unknown function, x0 as the initial point, l, u, respectively, lower and upper limits for the search interval, kmax is the maximum q iterations for the annealing factor, TolFun as a function of allowable error algorithm is the first step according to the number of input variables, set default values for certain amount of)

说明：  低密度码信道编译码算法，程序有信道模拟，matlab语言实现，主要研究规则低密度码(channel low-density code encryption algorithm, the procedure channel simulation, Matlab language, the main rules of low-density code)

matlab实现卡尔曼滤波算法，图形显示滤波轨迹和速度，以及滤波的标准差(Kalman filter algorithm to achieve matlab, graphical display trajectory and speed filtering, as well as the standard deviation of filtering)