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matlab实现矩形脉冲和根升余弦脉冲的QPSK调制功率谱密度及不同信噪比信道下的星座图，直接运行main函数即可(Plot the power density spectrum of the transmitted signal (e.g., with the matlab function psd) with different pulse shapes. How is it affected if a root raised cosine pulse is chosen instead of a rectangular pulse shape? Study the signal constellation in the receiver for various values of Eb/N0 for the AWGN channel. )

讨论基于软件无线电技术的直接序列扩频码元捕获及跟踪的快速算(Discussion is based on software radio technology, direct-sequence spread-spectrum code yuan to capture and track the fast calculation)

说明：  老外编的标准pso算法的matlab工具箱(foreigners series of the PSO algorithm standard Matlab Toolbox)

ramp generator program and IFOC

贝克汉函数方便解决一些复杂函数，可以调用作为子函数来使用。(Beckham convenient function to solve some complex functions can be called as a subroutine to use.)

matlab 中GUI的学习方法，实例讲解，滑动条的仿真，(gui in the matlab is an important)

供初学者学习和了解数组的应用。简单清晰的解释了数组(Applications for beginners to learn and understand the array. Simple and clear explanation of the array)

应用matlab生成白噪声和有色噪声的程序设计(failed to translate)

无线通信中经典的gardner符号同步算法，本人对其性能进行仿真，结果表明gardner同步算法具有优良的跟踪性能和跟踪精度(Communication technology in the classic GARDNER symbol synchronization algorithm, I do simulation results show that the algorithm has excellent tracking performance of the synchronization)

主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)