QPSK

主要介绍了新矩阵的创建，包括1）建立新矩阵；2）空矩阵；3）向量和子矩阵的生成；4）MATLAB中的特殊矩阵(Introduces a new matrix of creation, including 1) the establishment of a new matrix 2) empty matrix 3) vectors and matrices generated 4) MATLAB in the special matrix)

matlab gui 简明教程 快速了解gui(matlab gui )

capon波束形成及功率谱估计,一个目标信号加两个干扰(capon beamforming and power spectrum estimation, a target signal interference plus two)

多用户检测，解相关、MMSE以及传统多用户检测比较。(Multi-user detection, decorrelating, MMSE, as well as traditional multi-user detection comparison.)

WAP to generate a random noise of amplitude

Empty constructor Source Code for Andriod.

Two days course: Day 1 Part 2 Cartography Introduction

cours systeme temps reel synchronisation

MATLAB时频分析工具箱，很简单实用，能够满足基本时频分析使用(MATLAB toolbox for Time-Frequency Analysis )

考虑L的三个不同值：L＝256（3个数据段），L＝128(7个数据段)和L=64（15个数据段）。各自的谱估计图如上图所示。可以明显的看到，加窗明显的减小了频谱上的假谱峰，但也更加进一步平滑了谱峰。所以，对于L＝64的情况，在ω＝0.8π的谱线可以很确定的辨认，但是那两个靠近的谱峰不容易区分。对于L＝128的情况，这种情况提供了在分离和检测间最好的均衡。当然，对于在L＝256时的情况，效果是更好的，能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外，还可以采用对多个周期图求平均的功率谱估计方法的其他方法如Bartlett法等等，在功率谱估计上也能取得较好的结果。(consider three different values : L = 256 (3 data), L = 128 (7 data) and L = 64 (15 data). Their spectral estimation map as shown in Fig. It is clear to see that increase significantly decreasing window of the spectrum of false peaks, but much more to further smooth the peaks. Therefore, L = 64, in the case = 0.8 spectrum can determine the identification, but that the two peaks around is not easy to distinguish. L = 128 for the situation, which provided the separation and detection among the best balanced. Of course, L = 256 in the case, the effect is better, from the spectral estimation map clearly distinguish between the three lines of the existence and their relationship to the rate of strength. In addition to Welch law, but also can be used to map multiple cycle for the average power)