EXERCICIO5A

小船过河模型，在船速与水速已知情况下，作出小船航行轨迹(Boat to cross the river model, speed and water speed in the circumstances known to make the boat sail track)

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 )

计算mie散射中的散射系数，an，bn，cn，dn 在研究粒子散射问题时很关键(Mie scattering in calculating the scattering coefficient, an, bn, cn, dn in the study of particle scattering problem is critical)

这个代码是直方图的一个应用，可以帮助了解直方图。(This code is an application of the histogram can help to understand the histogram.)

解相关及MMSE和传统检测器比较的仿真程序包括有远近，无远近，有躁，无躁。(decorrelation and MMSE and traditional Detectors comparison simulation program including length, no distance, a rash, without rashness.)

this is decision tree ID3 algorithm, this algorithm is one of decision tree algorithm like cart, chaid, c4.5, etc

用于仿真高斯噪声、单音干扰、多音干扰以及不同占空比下干扰条件下的扩频系统性能及误码率(For the simulation of Gaussian noise, single tone interference, spread spectrum system performance in multi-tone interference and interference under the conditions of different duty cycles and bit error rate)

HCR protocol in MATLAB

大学里面的经典教材，浙江大学出版的概率论与数理统计(Colleges, the classic textbook, published by Zhejiang University, probability theory and mathematical statistics)

录制自己的一段语音，时间控制在15秒到30秒左右；利用wavread函数对自己的语音进行采样，记住采样频率。 （1）画出原始语音信号的时域波形，而后以1秒为间隔，求出每秒数据的功率谱。 （2）根据语音信号特点，分别设计FIR及IIR滤波器，分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波，画出滤波后时域波形。用sound函数回放语音信号。 （3）求出特征频段语音信号随时间变化的曲线（每间隔0.05秒求一次功率谱）。 (Record your own voice for some time (15 seconds to 30 seconds) use wavread function of the voice samples, remember the sampling frequency. (1) Draw the original speech signal in time domain waveform, and then to 1 second intervals, the data obtained power spectrum per second. (2) According to the voice signal characteristics, FIR and IIR filters were designed, namely to draw the amplitude and phase frequency characteristic curve. With the design of the filters on the signal filtering, to draw the filtered time-domain waveform. Playback with sound function of the speech signal. (3) Find the characteristic band speech signal curve over time (0.05 seconds intervals seeking a power spectrum.))