cr

说明：  利用通信系统中调制信号的循环平稳特性,对频谱空洞进行检测,提升频谱感知技术在低信噪比下的性能。实验结果表明:与传统能量检测方法相比,采用循环特征检测方法改善了认知无线电中频谱空洞的检测能力。(Based on the cyclostationarity of modulation signals, spectrum hole is detected, aiming at the improve- ment of the performance of spectrum sensing in low SNR situation. The results show that comparing with the tra- ditional energy detection technique, cyclostationarity-based spectrum sensing technique has greatly improved the detective ability in cognitive radio.)

Very good reference materials on network information theory

说明：  服务通讯程序，采用服务+客户端模式，有源代码可以自己修改研究(Services, communication procedures, using service+ client mode, the active code can modify their own research)

Modbus协议及Modbus RTU的C51编程(Modbus RTU Modbus protocol and the C51 programming)

说明：  针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK)，对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析，提出了一种联合特征参数的信号调制识别方法．(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)

正交编码方面的文章Coded Orthogonal Signaling(1993)(Coded Orthogonal Signaling(1993))

iEEE 207 标准 信道编码相关 卫星通信(iEEE 207 standard channel coding satellite communications)

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

计算多重分形非趋势波动分析matlab程序,图像的光流法计算的matlab程序,ldpc码的编解码实现。( Calculation multifractal detrended fluctuation analysis matlab program, Image optical flow calculation matlab program, Codec ldpc code implementatio.)

this describe the rouring protocol direct diffusion for wireless sensor network