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在瑞利衰落和高斯白噪声下qam调制对于不同信噪比的误码率(bit error rate of the Qam modulation in Rayleigh fading and Gaussian white noise for different signal to noise ratio)

模型是进行控制与稳定性分析的基础，可以服务于仿真、系统行为分析、系 统内在机理分析、控制、预测、监督与故障诊断等目的。因此，建立系统的模型 已成为许多科学研究与工程实施的首要问题。(Model is the basis for control and stability analysis, can serve simulation, system behavior analysis, the internal mechanism of the system analysis, control, forecasting, monitoring and troubleshooting purposes. Therefore, the establishment of the system model has been implemented for many scientific and engineering the most important issue.)

数值方法：雅克比、高斯赛德尔、超松弛迭代法matlab编程(Numerical methods: Jacobian, Gauss Seidel, over relaxation iterative method matlab programming)

matlab经典算法程序：插值，规划问题，数据分析，解方程，绘图(matlab ,algorithm)

back facing step solver

经典music应用于doa估计的算法程序，信源数3，阵元数8，均匀线阵，噪声为高斯噪声；(Classical music used in doa estimation algorithm, the number of sources, the number of array elements uniform linear array, noise, Gaussian noise )

256QAM调制及解调程序，采用格雷码编码格式。(256QAM modulation and demodulation)

用于大地电磁测量数据的计算，EH4采集的(it can compute the raw data gotton by EH4 in elctromagnetic survey)

说明：  这个文件里包含了画隐函数立体图的方法，简便使用，容易学习。(it about a technique of implicit functions diagram.)

说明：  软入软出译码算法实现 (SISO （soft input ，soft output） )