GPS

全志 F1C100A Melis OS 公版 SDK(Allwinner F1C100A Melis OS SDK)

组播接收端，socket通信，Windows网络编程(Multicast receiver, socket communications, Windows network programming)

f4系统下 usb+片上fsmc的实例demo 可为sd底层快速操作 提供可能(Under f4 systems usb+ piece fsmc instance demo for fast operation provides possible underlying sd)

说明：  用于简单的编程教学，通过简单编程实现生成一只小熊(For simple programming teaching, a bear is generated by simple programming.)

说明：  基于stm32的vx8812驱动实现，控制AV视频图像的输出(Vx8812 driver implementation based on stm32)

这是一个简单的花指令程序，里面的花指令是用汇编写的，使用的时候请把注释取消掉就可以了。虽然添加了花指令，但是程序一样可以运行，如果可以的话你可以查看添加花指令前后的反汇编，推荐使用工具OD。 程序使用VC++写的，但是VS也可以打开。(This is a simple flower instruction program, which flower instruction is written in assembler, use the time to comment, please cancel it. While adding a flower instruction, but the program can still run, if you can, then you can see the flower add disassembly instructions before and after the recommended tool OD. Program uses VC++ write, but can also open VS.)

SEED-XDS560PLUS Driver 很好用的哦(very goog)

多关节联动遥操作控制技术研究，基于vc++实现的遥操作控制方法。(Based on Visual C++, the paper finishes an approch to model a propblem of tele-operation robot.)

tf–idf, short for term frequency–inverse document frequency, is a numerical statistic that is intended to reflect how important a word is to a document in a collection or corpus.[1]:8 It is often used as a weighting factor in information retrieval and text mining. The tf-idf value increases proportionally to the number of times a word appears in the document, but is offset by the frequency of the word in the corpus, which helps to control for the fact that some words are generally more common than others. Variations of the tf–idf weighting scheme are often used by search engines as a central tool in scoring and ranking a document s relevance given a user query. tf–idf can be successfully used for stop-words filtering in various subject fields including text summarization and classification. One of the simplest ranking functions is computed by summing the tf–idf for each query term many more sophisticated ranking functions are variants of this simple model.

说明：  GPS 差分定位 单差和双差定位 0基线 cep95一米以内(GPS differential positioning)