boil

说明：  simulink仿真 simulink仿真 (simulink simulation simulink simulation)

it generates a runtime error if its this value is not a Number object.

AdaBoost元算法属于boosting系统融合方法中最流行的一种，说白了就是一种串行训练并且最后加权累加的系统融合方法。 具体的流程是：每一个训练样例都赋予相同的权重，并且权重满足归一化，经过第一个分类器分类之后， 计算第一个分类器的权重alpha值，并且更新每一个训练样例的权重，然后再进行第二个分类器的训练，相同的方法....... 直到错误率为0或者达到指定的训练轮数，其中最后预测的标签计算是各系统*alpha的加权和，然后sign（预测值）。 可以看出，训练流程是串行的，并且训练样例的权重是一直在变化的，分错的样本的权重不断加大，正确的样本的权重不断减小。 AdaBoost元算法是boosting中流行的一种，还有其他的系统融合的方法，比如bagging方法以及随机森林。 对于非均衡样本的处理，一般可以通过欠抽样(undersampling)或者过抽样(oversampling)，欠抽样是削减样本的数目， 过抽样是重复的选取某些样本，最好的方法是两种进行结合的方法。 同时可以通过删除离决策边界比较远的样例。 (AdaBoost boosting systems dollar fusion algorithm is the most popular one, it plainly systems integration approach is a serial train and final weighted cumulative. Specific process is: Each training example is given equal weight, and the weights satisfy normalization, after the first classifiers after Calculating a first classifier weights alpha value for each sample and updates right weight training, and then the second classifier training, the same way ....... 0, or until the specified error rate training rounds, wherein the label is the calculation of the final prediction system* alpha weighted and then sign (predicted value). As can be seen, the training process is serial, and weight training examples is always changing, the right of the wrong sample weight continued to increase, the right to correct sample weight decreasing. AdaBoost algorithm is an element, as well as other methods of boosting popular systems integration, such as bagging and random forest method. For )

GNSS 的CA和 BOC码的多径情况，以及图形，功能可以，希望大家有用(ca boc multipath)

可以动态调节运行环境的参数，一个计算声子晶体结构的一维传递矩阵法,有信道编码，调制，信道估计等。( Can dynamically adjust the parameters of the operating environment, A one-dimensional transfer matrix method to calculate the phonon crystal structure, Channel coding, modulation, channel estimation.)

Book about Fiber Optic Systems and Measurements

数字信号处理中的程序，采用music编写程序，进行谐波恢复试验(Digital signal processing procedures, the use of music programming, for harmonic retrieval test)

matlab的汉明码编码与解码，hamm_enc完成编码，hamm_dec完成解码(Matlab Hamming codes coding and decoding, hamm_enc complete coding, hamm_dec completed decoding)

风机建模。在matlab的simulink环境下，对永磁同步风机进行了建模。(Fans modeling. In the simulink matlab environment, the permanent magnet synchronous wind turbine is modeled.)

二阶锁相环 matlab实现 QPSK BPSK(Implementation of QPSK BPSK with second-order PLL matlab)