pid

实现MUSIC谐波分解,对于多个频率的估计(Realize MUSIC harmonic decomposition)

说明：  优化计算工具简介，matlab，mathematica，excel的比较(optimization tool, matlab, mathematica, excel comparison)

弹出式tooltips，codeproject上面一个国外人写的(Pop-up tooltips)

利用Matlab软件编写的轨道不平顺数据分析程序能够对轨检车测得的不平顺数据进行处理,得到功率谱密度分布函数.轨道不平顺分析程序包括轨道不平顺数据预处理、轨道不平顺谱分布函数计算以及根据实测的车体振动加速度,对轨道不平顺与车体振动加速度进行相干分析、提出对行车运行有不利影响的不平顺波长范围等.研究结果表明:车辆的动力特性与轨道不平顺有密切关系.高低不平顺对车体垂向振动影响显著,轨向不平顺对车体水平振动影响显著,水平不平顺对列车垂向、横向振动均有显著影响.(Matlab software written track irregularity data analysis program able to track inspection car irregularity measured data are processed to obtain the power spectral density function. Track Irregularities track irregularity analysis procedures including data preprocessing, track irregularity spectrum distribution function calculations, and based on the measured vibration acceleration of the vehicle, with the body of track irregularity acceleration coherent analysis, have an adverse impact on traffic running irregularity wavelength range, etc. the results show that: the dynamic characteristics of the vehicle and the track irregularity closely related. rough along the vertical vibration of the vehicle significantly, rail irregularity vibration to levels significantly affect the body, the level of irregularity to train the vertical and horizontal vibration significantly affected.)

this is a mdl file of matlab to Ideal Switch use in network

超宽带BPSK调制输出，加入窄带干扰并进行仿真输出。(Ultra-Wideband BPSK modulation output, adding narrow-band interference and simulation output.)

采用神经网络实现手写识别的一种方法，建立Bp神经网络，采用快速训练方法，可快速完成一类相关手写字体的模式识别，识别率较高，当字体变化较大识别率降低时，可重新训练具有较强的适应性。实验证实本方法较好实现了手写字符识别，但也存在识别速度较慢，有时训练不收敛等缺点(Handwriting recognition using neural network is a way to establish Bp neural network, using fast training methods, and can be related to the completion of a class of handwriting pattern recognition, recognition rate higher recognition rate when the font changed greatly reduced, they can re- Training has strong adaptability. Experiments confirmed that this method achieved a better handwritten character recognition, but there are also identified slow, and sometimes non-convergence of the training deficiencies)

主要是用于智能天线系统中的DOA估计的子空间算法中的MUSIC改进算法(is mainly for smart antenna system DOA estimated subspace algorithm MUSIC improved algorithm)

无线信道dENudn模型MATLAB仿真程序，实现了USSkzTV技术下多参数的模拟，最接近物理信道，信道逼近参数接近最小二乘dENudn算法。 (Radio channeldENudn model MATLAB simulation program, to achieve a multi-parameter simulation USSkzTV technology, the closest physical channel, the channel parameters close to the least square approximation algorithm dENudn )

This code is useful for PLD measurement