基于MATLAB直接序列扩频通信系统

使用QPSK调制方式的简单的通信系统，包含载波同步位同步等模块(a simple communication system, using QPSK modulation, including bit synchronization and carrier synchronization)

Analytic framework for performance evaluation of multi-antenna wimax

说明：  用于iOS平台的 ping demo,对苹果原生代码的封装(use for iOS partform ping demo)

STM8S - for new member

说明：  PCM编码译码的matlab代码，设一个输入量，对其进行通信原理仿真。(The MAT code of the PCM code decoding, set an input quantity, and simulate the communication principle.)

说明：  8. 单径瑞利信道中的四发四收V-BLAST： (1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量16QAM调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。 (2) 计算所设计方案的频谱效率是多少，单位为bit/Hz/s。(8. Four transmit four receive v-blast in single-path Rayleigh channel: (1) please design a specific navigation-assisted channel estimation method and conduct simulation with Simulink to measure the bit error rate performance of 16QAM modulation.The relation curve between the bit signal-noise ratio and the mean square error of channel estimation is drawn, and the relation curve between the bit signal-noise ratio and the bit error rate is drawn. (2) calculate the spectral efficiency of the designed scheme in bit/Hz/s.)

51单片机主机和从机通过485测AD电压，有程序和仿真(51 single chip computer host and slave machine through 485 AD voltage, program and simulation)

基于RSSI测距的等边三角形定位算法,对研究无线传感器网络定位算法十分有用(RSSI-based location of an equilateral triangle positioning algorithm, the study of wireless sensor network localization algorithm is very useful)

一个MIMO系统，发射方采用空时网格码编码，信道为锐利衰落，接收端已知信道情况。程序很详细，对做毕设的很有帮助。(A MIMO system, the launch party use of space-time trellis coding, channel for the sharp decline of the receiving end of known channel case. Procedures in great detail, the complete set of very useful to do.)

完整的串口编程实例，MSCOMM控件编程(A Complete Example of Serial Port Programming)