Resource-allocation-in-Cognitive-Radio--master

it is a very good file for tunable band pass filters

Blob Test extends SQLite Test Source Code for Andriod.

该程序是一个串口的数据接收程序，具有简化的串口设置，传输速率的设置等功能，适宜于串口功能的测试。(The program is a serial data receiving process, with a simplified set of serial port, transfer rate settings, such as features, functions suitable for serial testing.)

对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)

说明：  频分复用信号的生成以及演示，与英文工具书匹配，很好用！(FDM signal generation)

TDSCDAM的仿真，非常详细，包含了若干个matlab文件(TDSCDAM the simulation is very detailed and contains several matlab File )

说明：  横河CS3000培训讲义 DCS经典介绍和操作(Yokogawa CS3000 classical training, introduction and operation of DCS notes)

仿真二进制正交信号通过AWGN信道后的误比特率性能，每个信号周期取样10次，接收端采用相关器，Eb/N0的范围是0到12dB(Simulation binary quadrature signals by the bit error rate performance in an AWGN channel, each signal cycle sampled 10 times, the receiving side uses the correlation Eb/N0 is the range of from 0 to 12dB)

DVB-S2通信链的设计与仿真，使用了LDPC编码以及多种QAM调制方式。(Design and simulation of a DVB-S2 communication chain,LDPC coding and a variety of QAM modulation methods are used.)

虚拟串口源码，可用于串口服务器转IP输出，实现不同接口数据的转发( Virtual serial port source code, serial server to IP )