help newcomers familiar with the C language development of small systems

拼图游戏，可选择图像和难易程度，益智类游戏，可休闲可学习-Jigsaw puzzle, choose images, and degree of difficulty, puzzle games, can be casual to learn

gis地图 --- --文字1-gis writing a map

简单的vb聊天软件-simple vb chat software

图像检索的文章，是博士论文，感兴趣的可以下载呀-image retrieval article is doctoral thesis interested can download ah

verilog fifo

WLAN仿真－发送机 wlan No Comments 设置完系统参数后，开始产生发送数据。 1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。 2. QAM映射 3. 将数据映射到不同载波，形成OFDM符号 4. 产生pilot，并将pilot插入OFDM符号中 5. 加入dc和guard子载波 6. 进行ifft，将频域信号变到时域，并加入循环前缀 7. 对信号进行overlap window 8. 在时域产生short preamble 9. 在时域产生long preamble 10. 将preamble和数据符号组成packet 11. 升采样 得到信道传输的数据Tx_signal_up 具体程序见附件 wlan_transmitter.m-WLAN Simulation- wlan No Comments transmitter system parameters set finished, the beginning to have to send data. 1. Have sent random bit (tx_bits), here does not consider channel coding. 2. QAM mapping 3. The data is mapped to a different carrier to form OFDM symbols 4. Have a pilot, and pilot inserted OFDM symbols 5. Adding dc and guard subcarriers 6. To carry out ifft, will change the frequency domain signal to time domain, and add cyclic prefix 7. the signals overlap window8. In the time domain have a short preamble9. In the time domain have a long preamble10. the preamble and data symbols packet11. or sampling re

数据库课件，适合于初学者！可以用于教学也可以自学用！-Database software, suitable for beginners! Can be used in teaching can also be a self-learning!

通用静态页面生成系统(Engineer) v.1-common static page generation system (Engineer) v. 1

统计学习理论及应用课堂讲稿-来自麻省理工学院得好资料~-Statistical learning theory and application of classroom lectures- good information from the Massachusetts Institute of Technology ~

采用正弦波叠加法仿真多径衰落信道，计算信道频率响应-using sine wave superposition method simulation multi-path fading channel, Channel calculated frequency response