cccddma2000d

说明：  压缩感知技术是2006年提出的一个新的技术，该文档主要做一个整体的综述，(Compressed sensing technology is proposed in 2006 a new technology, the main job of a whole document review,)

说明：  This code is related to the course Digital Communications. It reproduce the error probability as a function of the SNR per bit for 16-QAM. Enjoy it!

Its a TPMS starting program, for people who are beginning to program TPMS solutions. We are using some librarys and headers and etc but it is not in the program. So if you read it, you will be able to get directions to start your own program.

使用MATLAB编写的时域横向均衡器的设计。有兴趣的同学可以来看看。(using MATLAB prepared by the time domain equalizer horizontal design. Interested students can come to see.)

递归式最小均方（RLS）算法的基本思想是力图使在每个时刻对所有已输入信号而言重估的平方误差的加权和最小，这使得RLS算法对非平稳信号的适应性要好。与LMS算法相比，RLS算法采用时间平均，因此，所得出的最优滤波器依赖于用于计算平均值的样本数，而LMS（NLMS）算法是基于集平均而设计的，因此稳定环境下LMS（NLMS）算法在不同计算条件下的结果是一致的(Recursive least-mean-square (RLS) algorithm for the basic idea is to try to make in every moment of all the input signal in terms of re-evaluation of the weighted squared error and the smallest, which allows non-stationary RLS algorithm for adaptive signal better. Compared with the LMS algorithm, RLS algorithm uses the average time, therefore, the resulting optimal filter depends on the used to calculate the average number of samples, and the LMS (NLMS) algorithm is designed based on set average, and therefore a stable environment LMS (NLMS) algorithm in different conditions, the results of the calculation is consistent)

说明：  首先，建立两个模拟信号的数学模型 有用信号 干扰信号。两个信号的中心频率、信号带宽等参数由学生自己选定，要求两个信号的频谱不重叠 分别画出三个模拟信号的时域波形和频谱图；然后，根据x_a (t)的中心频率和带宽，按照奈奎斯特采样定理选择采样频率fs，分别对信号s_a1 (t)、s_a2 (t)、x_a (t)进行时域采样，得到离散信号s_1 (n)、s_2 (n)、x(n)。利用FFT算法分析离散信号的频谱，分别画出三个离散信号的时域波形和频谱图； 接着，设计数字滤波器H(z)，要求该滤波器对干扰信号s_2 (n)的衰减大于40dB。提出滤波器的设计指标，并设计滤波器，给出滤波器的设计结果，绘制滤波器的幅频特性和相频特性曲线，验证滤波器的设计结果是否达到设计指标要求；此外，选择实现数字滤波器H(z)的结构，画出滤波器结构信号流图；然后，将合成信号x(n)输入数字滤波器H(z)，按照所选择的滤波器结构，设计计算机程序计算滤波器的输出响应y(n)，画出y(n)的时域波形和频谱图；(the synthetic signal x (n) is input into the digital filter H (z). According to the selected filter structure, a computer program is designed to calculate the output response y (n) of the filter, and the time-domain waveform and spectrum diagram of Y (n) are drawn)

否定选择算法的仿真 希望大家能好好学习 好东西和大家分享(Negative selection algorithm for the simulation of hope that we can learn good things and to share)

可以用来算系统功率和子载波分配的注水算法经典算法.(System can be used to balance power and subcarrier allocation algorithm of the water, the classic algorithm.)

智能天线，自适应非盲算法LMS，探测制导LMS with white input.由于上传格式限制题目看仔细。后续还有上传，尽请期待。(Smart antennas, adaptive algorithm for non-blind LMS, probe-guided LMS with white input. As the title of carefully limit upload format. From there follow-up, please do not expect.)

对图像求拉普拉斯变换，分别使用中心为-4、-8其他值均为1的拉普拉斯滤波器(Laplace transform of image, Laplace filter respectively using the center for- 4、-8，other value for 1)