使用FFT分析信号幅度谱和相位谱

说明：  利用python语言实现了casa模型的NPP的计算，包括数据的读取等，亲测可用(Python implementation of the casa model)

基于python语言读取Micaps格式数据，包括地面、高空、格点数据等类型。(Read Micaps format data based on Python language)

在MATLAB水印随基序列生成嵌如到图象中 不错的源码 很好(In MATLAB watermark generated with the base sequence such as embedded to the image of good source is very good)

说明：  C语言及MATLAB语言随机介质建模代码，生成随机介质模型，C语言版本需要安装fftw，附件里面有压缩包及安装方法。(C language and MATLAB language Random Media modeling code, generate random media model, C language version needs to install fftw, the attachment contains compression package and installation method.)

说明：  地震工程用于生成匹配设计谱的时域调整记录(Time domain adjustment record for matching design spectrum generation in seismic engineering)

说明：  将CATIA数据里面的2层和3层焊点，批量生成point点。(Two and three layers of solder joints in CATIA data are generated in batches.)

实现了书店中对不同杂志的分类统计，并对销售额及等级作出评价(Achieve a bookstore in the classification of statistics of different magazines, and an assessment of sales and rating)

PFC模型的围压伺服代码 可直接应用 为最新5.0版本代码(code of PFC the servo code to model version 5.0)

简单的客户关系管理 包含跟进记录，客户活动，商业机会，联系人等模块(Simple customer relationship management includes follow-up records, customer activities, business opportunities, contacts, modules, etc.)

说明：  实现角度向弧度的转换，并判断所属象限。。。(Realize the conversion of angle to radian, and judge the quadrant.)