Spread-spectrum

使用Matlab计算信源熵，利用信息论与编码所学知识完成实验(Using Matlab to compute source entropy)

包含twincat2串行通讯等必要的库文件,(Beckhoff PLC communication program in the no- protocol on the platform of TwinCAT)

Logika 25s controllers Modbus alarm codes documentation

ADIBEAM Abstract—the increase in navigation accuracy demanded by EGNOS and Galileo and their future evolution encourages the study and design of advance receiver architectures. In that direction, the ADIBEAM project focuses on the design of high accuracy ground stations, specifically GNSS Reference Stations, in order to improve its robustness in front of multipath and interference errors with the goal of achieving centimeter level tracking accuracy. The adoption of antenna arrays and digital beamforming at the ground reference station receivers is one of the most promising approaches to cope with errors induced by multipath and interference.

VISUALB BASIC 制作安装程序 ，更明白，更好用(Setup VISUALB BASIC produced a better understanding and better use)

TDOA algorithm presentation

Cognitive Radio - Securuty

By building the generalized Sigmoid function relationship between normalized step-size and the power of error signal, a novel variable step-size NLMS algorithm is proposed. It is proved that the step-size of NPVSS-NLMS changes as the new algorithm does when A=σv -m and B=2. The physical meanings of the parameters in this algorithm are explored. The theoretical analysis illustrate that this algorithm combine the virtues of NPVSS-NLMS and Sigmoid function, and it leads to faster convergence rate and lower final misalignment. The computer simulation results support the theoretical analysis.

LTE ADVANCED ,LTE PHY Downlink with Spatial Multiplexing

Analysis and Simulation Model of Physical Carrier Sensing in IEEE 802.11 Mesh Networks