Blackman_Harris

Using TF-IDF to Determine Word Relevance in Document Queries : In this paper, we examine the results of applying Term Frequency Inverse Document Frequency (TF-IDF) to determine what words in a corpus of documents might be more favorable to use in a query. As the term implies, TF-IDF calculates values for each word in a document through an inverse proportion of the frequency of the word in a particular document to the percentage of documents the word appears in. Words with high TF-IDF numbers imply a strong relationship with the document they appear in, suggesting that if that word were to appear in a query, the document could be of interest to the user. We provide evidence that this simple algorithm efficiently categorizes relevant words that can enhance query retri

基于标记的分水岭图像分割算法，是通过MATLAB编写的，算法运行比较快，更改读入图像的路径就可以运行。(Watershed image segmentation algorithm based on mark)

脉冲编码调制PCM实现，编程实现PCM技术的三个过程：采样、量化与编码(Pulse Code Modulation PCM implementation, programming the PCM technology of three processes : sampling , quantization and coding )

S函数实现PID的算法，包含离散形式的算法实现，和连续形式的算法实现。(Using PID to achieve S-Function algorithm)

永磁同步电机滑膜观测器估算电机转速。精度比传统观测器精度高。(Estimation of motor speed by permanent magnet synchronous motor. The precision is higher than that of the traditional one)

双层隔振的评价指标，力传递率的计算，以力传递率为目标的优化设计分析(Evaluation of double isolation, computing power transfer rate, in order to optimize the design of power transmission rate target analysis)

matlab画板matlab画板matlab画板matlab画板(this is matlab pant this is matlab pantthis is matlab pant this is matlab pant)

说明：  北航数值分析大作业第一题：矩阵的QR分解求特征向量。代码是我在理学院本科期间写的，所有结果已经过Matlab及Mathematica验证，保证算法正确实现。(Numerical analysis of Beihang great job the first question: QR decomposition of matrix eigenvector. Code is written during my undergraduate logical Institute, all results have been verified through Matlab and Mathematica, to ensure it is correct to achieve.)

信道编码仿真模型 汉明码 RS码 BCH码(Simulation model of channel coding)

说明：  利用MATLAB中的GUI工具来制作串口通信上位机，利用上位机将数据利用绘图实时显示出来。(Use the GUI tool in MATLAB to make the serial communication upper computer, and use the upper computer to display the data in real time using the drawing.)