ofdm_psd_spectrum

MIMO信道容量的Matlab仿真程序,瑞利信道,得到的是CDF，即累计分布曲线(Matlab simulation program MIMO channel capacity, Rayleigh channel, get the CDF, and that the cumulative distribution curve)

光纤放大器模拟程序，包括泵浦功率、光纤增益、光纤长度等参数(fiber amplifier)

适应多个模式的rs编码，Verilog，选择对应的多项式(RS coding adapted to multiple modes.)

完整经典的MIMO-OFDM仿真（matlab） 包括模块：create_channel.m， BitLoad.m，ComputeSNR.m，chow_algo.m， EnergyTableInit.m，campello_algo.m，ResolvetheLastBit.m，modulate.m，precode.m，ifft_cp_tx_blk.m，hannel.m， fft_cp_rx_blk.m，shape.m(Integrity of the classical MIMO-OFDM simulation (matlab), including modules: create_channel.m, BitLoad.m, ComputeSNR.m, chow_algo.m, EnergyTableInit.m, campello_algo.m, ResolvetheLastBit.m, modulate.m, precode.m, ifft_cp_tx_blk . m, hannel.m, fft_cp_rx_blk.m, shape.m)

一种基于遗传算法的OFDMA系统的跨层资源分配(Cross-layer resource a genetic algorithm-based allocation of OFDMA system)

说明：  基于子空间投影的 CSMG 波束形成算法，是一种将子空间投影与波束形成技术相 结合的抗干扰方法。该方法首先构造干扰子空间的正交补空间，再将天线阵列接收到的空时信号矢量向其投影，然后对投影后的输出信号采用具有严格约束最小功率的抽样矩阵梯度（CSMG）算法，在固定方向上进行波束形成，最后捕获、定位及解算出每个波束得到的无干扰数据等，可以有效地抑制干扰信号，同时又可以更好的保留期望信号。(The algorithm of the CSMG beamforming based on subspace projection, which is a combination of the Subspace projection and beam forming technology. Firstly, the data vector received by antenna array is projected onto the interference subspace, which is orthogonal to interference subspace for achieving interference suppression. And then, by using the method of the strictly constrained minimum power sampling matrix gradient(CSMG), after the projection of the subspace, the signal is beamformed in a fixed direction. Finally, for jammer-free data of each beam achieved to capture, locate, solute and so on. The ability of the suppress interference by this method, which can be more effectively, and keep the desired signal better.)

信号进入信道，经过高斯噪声的干扰，经过QPSK调制以后的时延 (The signal enters the channel, after the interference of the Gaussian noise after a delay after the QPSK modulation)

Jabba是一个非常好的Jabber客户端，使用的Visual C++平台编写，可以在Jabba的基础上快速开发Jabber应用程序。(Jabba is a very good Jabber client, use Visual C++ Platform preparation, you can Jabba the basis for rapid development of Jabber applications.)

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.)

一款移相全桥DC/DC变换器，基于Simulink编辑，有一些复杂。(failed to translate)