qimodazuoyeyi

This the solution manual for modern signal processing.

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

基于单周期控制的升压型有源功率因数校正仿真图( Based on one cycle control boost active power factor correction simulation diagram)

自己编写的matlab程序，实现了图像的模糊C均值分割，没有调用工具箱里的fcm函数，里面的图像，代码文件齐全，亲测可用(I have written the matlab program,did not call the toolbox FCM function to achieve the image of the fuzzy C mean segmentation. The code file is complete, can be debugged.)

Particle filter implementation. Simple and easy. It used only four particles. But it easy to understand. gook Lucky

distribution system analysis

著名科学软件平台Matlab（矩阵实验室）早期1.0版本for DOS(Eminent scientific software platform Matlab (Matrix Laboratory) early version 1.0 for DOS)

matlab的直接序列扩频DSSS的Rake接收机仿真(DSSS direct sequence spread spectrum matlab the Rake Receiver Simulation)

说明：  对采集到的数据进行分析，并有相对的频谱转换，观察频域的信号(On analysis of data collected, and the relative frequency conversion, frequency domain signal observed)

fft analisys aoudio file