noise_filtering_matlab

使用函数 fourier()可以实现信号 f(t)的傅里叶变换.(The functions of fourier transform.)

超宽带系统链路matlab仿真程序 超宽带系统简单仿真平台，有简单界面.包括可替换的脉冲成型（半余弦脉冲）、IEEE802.15.3a的修正SV信道、最大似然信道估计、Rake接收机等模块，可以实现monte carlo仿真求误码率。可添加多址接入、编码等功能（维特比编解码、帧同步的程序由本人同学编写）。入口主程序uwbsim.m 编解码程序：bin2deci.m；bini2deci.m；deci2bin.m VITRBI.m 信道及信道估计：ch_est.m；channel.m；channelgenerator.m；conv_m. m；sigfold.m UWB_SV_channel.m uwb_sv_cnvrt_ct.m uwb_sv_eval_ct.m uwb_sv_model_ct.m uwb_sv_params.m Rake接收机：findpeak.m；MRC_combine.m；MRC_Rake.m；n_upsample.m；selectpath.m 其他：cnv_encd.m；dssignal.m；Eb_halfcos.m；waveshape.m；halfcos_generator.m；metric.m；nxt_stat.m；sim_main.m；spreadgren.m；test_code.m；training_ds.m；uwbsim.m；vit_test.m(UWB system links Matlab simulation program UWB simple system simulation platform, A simple interface. including replacement of the pulse shaping (semi-cosine pulse). IEEE802.15.3a amendment SV Channel, the greatest likelihood channel estimation, the Rake receiver modules. can be achieved monte carlo simulation for BER. They can add multiple access, coding, and other functions (Viterbi codec, frame synchronization procedures prepared by my classmates). Edit the entrance uwbsim.m codecs : bin2deci.m; bini2deci.m; deci2bin.m VITRBI.m Channel and Channel Estimation : ch_est.m; channel.m; channelgenerator.m; conv_m. m; sigfold.m UWB_SV_channel.m uwb_sv_cnvrt_ct . m uwb_sv_eval_ct.m uwb_sv_model_ct.m uwb_s v_params.m Rake : findpeak.m; MRC_combine.m; MRC_Rake.m; n_upsample.m; selectpath.m Other )

本内容为，三维模型直接导入matlab中，可以方便的运行，可以更观的体现模型的真实性(This content is, three-dimensional model directly into matlab, you can easily run, you can view more manifestation of the authenticity of the model)

以中等纯度的精馏塔为研究对象，考虑到不等分子溢流的影响和非理想的汽液平衡，可以得到塔顶产品轻组分含量Y与回流量L之间的传递函数为： 控制要求： 1.采用积分分离 PID控制算法将塔顶轻组分含量Y控制在0.99 2.采用继电法整定PID参数 3.整定效果验证：当被控过程参数时变时，如滞后时间由4→8，开环增益由3.4→6时, 讨论PID控制的响应速度及鲁棒性问题，考察当系统参数发生改变时，上述PID参数是否选取合适。 (Moderate purity fractionator as the object of study, taking into account the ranging molecular overflowing and non-ideal vapor-liquid equilibrium can be obtained by the transfer function between the content of light components of the overhead product Y and back to the flow L: Control Requirements: 1. integral separation PID control algorithm to control the top of the tower light component content Y 0.99 2. relay Law tuning PID parameters. tuning effect is verified: change When accused of process parameters, such as the lag time from 4 → 8, the open loop gain discussed from 3.4 → 6, the PID control of the response speed and robustness issues investigated when the system parameters are changed, the PID parameters select appropriate.)

运通卡尔曼滤波器函数以及最小二乘法，对图像进行滤波，并将两种结果进行比较(Express and least squares method, kalman filter function of image filtering, and comparing the two results)

用希尔伯特黄变换（HHT）求时频谱和边际谱.包括代码、原理、截图分析(Hilbert Huang transform (HHT) Find the spectrum and marginal spectrum, including the code, schematic, screenshot analysis)

OFDM system orthogonality plot or simulation

该程序功能主要是运用matlab的小波函数完成图像的读入和显示，并实现加入噪声，最后运用小波函数滤除(The main function of the program is to use matlab image of the wavelet function of the read and display, and the realization of adding noise, and finally the use of wavelet function filter)

《matlab在数学建模中的应用》卓金武版，从数学建模的角度介绍matlab的应用。书中内容完全是根据数学建模竞赛的需要而编排的，涵盖了绝大部分数学建模问题的matlab求解方法。源码为《Maltab在数学建模中的应用》的源程序和数据。 ("Matlab in mathematical modeling, " Zhuo Jinwu version, from the mathematical modeling point of view on the application of matlab. The book content is based entirely on the needs of mathematical modeling contest arranged, covering the majority of matlab mathematical modeling method for solving the problem. Source for the "Maltab in mathematical modeling, "the source code and data. )

电机的直接转矩控制，用神经网络替代定子磁链观测器(Motor direct torque control using the neural network to replace the stator flux observer)