1572-Introduction-to-Using-OPNET-Modeler-Network-

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：  一种基于多用户子载波分配的算法希望对大家有用。(Based on Multi-user subcarrier allocation algorithm for all of us hope that useful)

DSDV协议在ns2中的实现，可以直接使用，无需调试(DSDV protocol implementation in ns2, can be used directly, without debugging)

南自提供---标准FT3通讯规约格式,详细提供了他的格式(standard Statute of FT3)

迷宫的flash程序,动态演示出入栈的操作,对下正在学数据结构的同学有帮助(Labyrinth flash procedures, dynamic demonstration of the operation of stacks, for students who are learning data structure is helpful)

说明：  无源被动雷达定位中的利用椭圆法求交点，得到目标位置(Passive Radar Detection using Range-Doppler Transformations find ell intersect)

说明：  可以根据用户需要设计任意的模拟滤波器。只需填入截止频率、通频带等参数，该软件就可自动生成滤波器的电路图，以及各个元件的参数。(this software is very useful for designing filter ,you need only input the data ,then it can generate the circuit.)

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.

高通平台电信版CDMA手机写入MEID号码(Write MEID tool for Qualcomm platfrom)

卫星通讯DVBS2 中对编码性能测试，通过比较最后的误码率和信噪比的关系，判断结果(satellite communication)