speckle

matlab上机实验用fft对信号作频谱分析(Signal using the fft spectrum analysis )

Photos with people (e.g., family, friends, celebrities, etc.) are the major interest of users. Thus, with the exponentially growing photos, large-scale content-based face image retrieval is an enabling technology for many emerging applications. In this work, we aim to utilize automatically detected human attributes that contain semantic cues of the face photos to improve contentbased face retrieval by constructing semantic codewords for efficient large-scale face retrieval. By leveraging human attributes in a scalable and systematic framework, we propose two orthogonal methods named attribute-enhanced sparse coding and attributeembedded inverted indexing to improve the face retrieval in the offline and online stages. We investigate the effectiveness of different attributes and vital factors essential for face retrieval. Experimenting on two public datasets, the results show that theproposed methods can achieve up to 43.5 relative improvement in MAP compared to the existing methods.

很好用的模拟退火Matlab工具箱，带有英文说明书 (Simulated Annealing Tools Software)

波束形成算法中一种变换形式的极坐标算法（与传统的极坐标算法不同）(Polardb is a modified version of the regular polar function.)

Matlab工具包，包含了支持向量机和核函数的工具包，可直接调用(Matlab toolkit, including support vector machine SVM and kernel function tool kit, can be called directly )

介绍了matlab软件如何与行业的研究相结合，促进了行业的革新和发展。(How matlab software combined with industry to promote innovation and development of the industry. )

用matlab画出α=0,0.5,1的余弦滚降系统的频谱，并画出各自对应的时域波形。以α=1的余弦滚降系统为例，进行二进制双极性数字基带信号传输，试画出接收端的基带信号波形及眼图。(Matlab draw α = 0,0.5, 1 cosine roll-offs system of spectrum, and draw their corresponding time domain waveform. To α = 1 cosine roll-offs system as an example, the binary dual polarity digital baseband signal transmission, try drawing the receiving end baseband signal waveform and eye chart.)

这是一个计算近似熵的程序，后续开发可以通过控制维度m调节搜索最佳评价维度。(This is a program to calculate approximate entropy.you can control dimension to search the best uation dimensions for deeper study.)

Gmld2c matlab process code

这个压缩包里面是极化码的SCL方案的仿真 可以设置不同的码长和信噪比 并且可以选择高斯信道和擦除信道这两种信道(This program simulate the performance of SC-list scheme of polar code. You can choose different SNR and code length.You also can choose two type of channels.)