Space-Time.Coding_John.Wiley.And.Sons

数字调制解调信号ask fsk bpsk qpsk 16qam 64qam(digital modulation and demodulation )

这是一个用来用手机操控电脑上的ppt的一个源码，挺有意思的，可以用来做参考(thiao this is a android ffio fjdiofj fjia ofji afjifjidjifiroagjiorajpo)

给出了分数阶傅里叶变换的具体实现程序，阶数可调。该程序实现是根据一篇通信学报上的论文做的。同时提供了OFDM系统在不同信道估计技术下的误码率以及多径信道下的性能。对于想研究基于分数阶傅里叶变换的OFDM系统的人有一定帮助。(The codes for fractional fourier transform (frft) and its inverse way are given according to a published paper in Journal of Communication. The power is adjustable. In addition, two programms of OFDM system simulation under different channel estimate technique and multipath are offered. Therefore, such file packet is of use for those who have interests in studying OFDM based on frft)

One issue with underwater sensors is how to efficiently transfer large amounts of data collected by the node to an interrogating platform such as an underwater vehicle. It is often impractical to make a physical connection between the node and the vehicle which suggests an acoustic or optical wireless solution. For large amounts of data, the high bandwidth of underwater optical wireless is an advantage. A small, low-cost platform to demonstrate the potential of an optical wireless communications interface for underwater sensor nodes is demonstrated. To enhance the reliability and robustness of the optical wireless communication digital signal processing and error correction techniques are used. The system was tested in 3 and 7.7 meter tanks at 5 Mbps with the turbidity of the water controlled by the addition of Maalox.

非合作博弈论在认知无线电中的功率控制方法探讨 (Non-cooperative game theory in cognitive radio power allocation)

HLP A+ Modbus 标准通讯协议格式，上位机发送数据格式，正确时变频器返回数据格式(This bit will be set to logic 1 when the receive buffer has been read and contains no new information. If there is new information available in the receive buffer that has not been read, this bit will return to logic 0. RXBMT = 1 when in Master Mode.)

说明：  STM32F103C8T6最小系统资料包。最小系统板资料，通用资料。(Minimum system board data, general information.)

ofdm系统模型，包含信道估计 FFT变换 QPSK 16QAM调制 插入导频等，非常全面。(OFDM system model, including channel estimation FFT transform QPSK 16QAM modulation insert Pilot and so on, very comprehensive.)

恒模算法(CMA)是实际中应用最广的一种盲均衡算法,这里主要时提出了改进的lc-cma算法的源程序代码(Constant modulus algorithm (CMA) is one of the most widely used blind equalization algorithms in practice. In this paper, the source code of the improved lc-cma algorithm is proposed.)

基于VC++ 6.0 Winsock+UDP 广播信息源码(Based on VC++ 6.0 Winsock+ UDP broadcast source)