CVX_9.744

利用博弈论对认知无线电的新研究算法，希望对大家有帮助(Using game theory, a new study on cognitive radio algorithms, we want to help)

说明：  4. 试说明卷积编解码的工作原理： (1) 使用Simulink仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(S-Function方式)，不是调用Simulink的已有编码、译码函数。 (2) 请在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。(4. Try to explain the working principle of convolutional codec: (1) Simulink was used to simulate convolutional coding, and Viterbi decoding method was used for decoding. The coding and decoding were all written by oneself (s-function method), rather than calling the existing coding and decoding functions of Simulink. (2) in the additive white gaussian noise channel, please draw the curve of the relationship between bit signal-to-noise ratio and bit error rate.)

使用matlab中的通信工具箱中simulink搭建直接序列扩频系统并进行仿真，(The direct sequence spread spectrum system is built and simulated by using Simulink in the communication toolbox of MATLAB.)

说明：  经典无线链路预算模型，预测了在自由空间中由地形的非规则性造成的中值传输衰落。该模型适用于频段为20MHz至40GHz、路径长度为1km至2000km的情况。对于给定的传输路径，该计算机程序通过频率、路径长度、极化方向、天线高度、表面绕射率、地面有效半径和地面导电常数等参数可以确定传输损耗的大小。(Classic wireless link budget model, forecasts the in free space caused by terrain of regularity in the value decline.The model is suitable for the frequency of 20 MHZ to 40 GHZ, path length of 1 km to 2000 km.For a given transmission path, this a computer program can calculate the value of the transmission loss by frequency, path length, polarization direction, antenna height, surface diffraction, effective radius of the ground and ground conductivity constant parameters and so on.)

实用性代码，可以在手机等移动设备上很好的使用，可操作性强。(Usefulness of the code can be very good for use on mobile phones and other mobile devices operable.)

通信中利用匹配滤波，产生斜坡信号，并进行相应滤波(Communication using matched filtering, resulting in ramp, and the corresponding filter)

OFDM调制发射和接收仿真，考虑两种调制方式，16qam及qpsk调制，使用LS信道估计和频域均衡(OFDM modulation transmission and reception simulation, considering two modulation modes, 16QAM and QPSK modulation, using LS channel estimation and frequency domain equalization.)

lms基础算法，已经经过测试，可以通过。(LMS basic algorithm has been tested and passed.)

说明：  Debugging Program of Korea Optic New Integrated vehicle Radio High Frequency head KST-1111

MIMO多天线收发 各种性能比较（BER曲线） 包括MMRC EGC SC Alamouti V-BLAST。信道为瑞利信道，有2种，相关和非相关。测试仿真结果 请运行文件名带plot的。(MIMO multi-antenna transceiver various performance comparison (BER curve), including MMRC EGC Ala SC mouti V-BLAST. Rayleigh channel to channel, two species, and correlated. Simulation results of tests requested documents were operating with the plot.)