chazhi

通信系统仿真原理与无线应用，很好的一本关于通信系统仿真的书(Principles of Communication System Simulation and wireless applications, a good book on the communication system simulation)

无噪情况下root_MUSIC算法关于DOA的估计(Noise-free case root_MUSIC on DOA estimation algorithm)

粒子滤波matlab仿真程序.粒子滤波的基本思想是：首先依据系统状态向量的经验条件分布，在状态空间抽样产生一组随机样本集合，这些样本集合称为粒子；然后根据观测值不断调整粒子的权重大小和样本位置；最后通过调整后的粒子信息修正最初的的经验条件分布，估计出系统状态和参数。该算法是一种递推滤波算法，可以用来估计任意非线性非高斯随机系统的状态和参数。 粒子滤波主要有三步基本操作：采样（从不含观察值的状态空间产生新的粒子）、权值计算（根据观察值计算各个粒子的权值）、重采样（抛弃权值小的粒子，使用权值大的粒子代替），这三步构成了粒子滤波的基本算法。 SIRF(Sample Importance Resampling Filter)算法是粒子滤波的一种基本算法。(Particle filter matlab simulation program)

Sliding Sum Averaging Filter Smoothes data by sliding it past itself, one sample at a time, and summing. The length of the output is the same as the length of the input. The output will be normalized. Equivalent to a moving average (lowpass) filter, but more efficient.

研究有限矩形区域内，粒子运动到区域边界时会与区域边界发生不同作用（弹性碰撞和吸收两种可能的情况）下的布朗运动。(Finite rectangular region of the particle motion to the regional boundaries will occur with the different roles of the regional boundary (elastic collision and absorption of two possible scenarios), the Brownian motion.)

matlab要求编写函数，并画出图的matlab习题，供大家参考(prepared Matlab functions, and draws a plan of Matlab Exercise, for your reference! !)

采用谐波叠加法模拟风速，计算时间较长，但精度较高。(The use of harmonic superposition method simulated wind speed, computational time, but the accuracy is higher.)

matlab官方出品的上手教程，科研必备。(Matlab official production of the first-hand course, scientific research is necessary.)

说明：  滤波器的设计及仿真(滤波器参数的选择及类型的选择等matlab源代码)(creating filter )

信号检测与估计课后答案的Matlab程序，非常适合初学者从实际中了解该课程(Signal detection and estimation the afterschool answer Matlab program, very suitable for beginners to learn about the course from the actual)