madview

This book introduces the theoretical knowledge of compiler theory, which is suitable for the undergraduate students majoring in computer science.

OFDM即正交频分复用技术，多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容易。(Orthogonal Frequency Division Multiplexing (OFDM) is a kind of multi-carrier modulation. The main idea is to divide the channel into several orthogonal sub-channels, convert high-speed data signals into parallel low-speed sub-data streams, and modulate them to transmit on each sub-channel. The signal bandwidth on each sub-channel is less than the correlation bandwidth of the channel, so it can be seen as flat fading on each sub-channel, which can eliminate inter-symbol interference. Moreover, since the bandwidth of each subchannel is only a small part of the original channel bandwidth, channel equalization becomes relatively easy.)

说明：  CVTE的模型测试实现。适应下载清华数据(The testing program of the modle of CVTE)

生成EXCEL的PHP文件，相当好用的一个类-EXCEL

说明：  机器学习里面聚类所需的数据集，分为人工的二维数据集，如月牙形，双螺旋型等，和UCI真实数据集(The data set required for clustering in machine learning is divided into artificial two-dimensional data sets, such as crescent, double helix, etc., and UCI real data)

gpt2w5模型代码 通过更改参数可得到对流层延迟量值 MATLAB(gpt2w5 model code MATLAB Tropospheric delay can be obtained by changing parameters)

说明：  MATLAB例程，基于数据驱动的一种方法，主元分析（pca），并采用方差贡献率对超限数据进行故障辨识(MATLAB routine, a data-driven method, principal component analysis (pca), and the use of variance contribution rate for fault identification of excess data)

44b0开发板原理图，网上公布的版本，测试可行-44b0 development board schematics, online published version, testing feasible

汽车线程多线程并行-car multithreaded parallel threads

说明：  智能视频监控系统目标检测和跟踪技术分析研究(Intelligent video surveillance system target detection and tracking of technical analysis)