sins_pure

Poly alphabetic cipher in C

三维地质雷达正演模拟,可以对二进制数据读取，利于学习(3D GPR simulation)

ga 派車路徑排班，執行有詳細步驟點選說明(ga派车path scheduling, implementation steps detailed description click on)

分布式对MATLAB中图像处理的过程及相关函数进行详细讲解，帮助学生了解处理流程，熟练掌握函数使用。(Distributed process of MATLAB in image processing and related function in detail, help students to understand the process, familiar with function to use.)

说明：  在matlab中利用层叠方法实现秩排序统计滤波器(Method in matlab using cascaded to achieve the rank order statistics filter)

这是一个基于LMI的鲁棒控制理论matlab仿真模型实例，描述的是一个倒立摆。希望对大家有用(It is based on LMI robust control theory matlab simulation model instance , described an inverted pendulum . Hope to be useful)

根据TD-SCDMA系统的特点，给出USTC码（酉空时码）在TD-SCDMA系统中的应用仿真程序，希望大家看看，很有创新(According to TD-SCDMA system features, given USTC code (Unitary Space-Time Code) in the TD-SCDMA system simulation program, hope that we look at innovative)

we present a practical link adaptation algorithm for MIMO-OFDM systems. The proposed solution is based on sounding the channel periodically and choosing the optimal mode that will maximize the throughput or energy efficiency (EE) while satisfying the application’s quality of service (QoS) requirements. In addition, we address practical problems such as the computational complexity of the algorithm and determination of sounding period by novel closed form solutions and iterative algorithms. Realistic link level simulations confirm that the proposed solution achieves significant improvement over existing link adaptation algorithms when the aim is to maximize the throughput, and provides orders of magnitude gain in energy efficiency compared to poorly chosen fixed modes when used for energy efficiency maximization purposes. The resulting algorithms are implemented on a real time MIMOOFDM testbed, and we report on the experimental results.

A major challenge to MIMO-OFDM systems is how to obtain the channel state in- formation accurately and promptly for coherent detection of information symbols and channel synchronization.

对正弦波进行FFT（快速傅立叶变换）得到幅频谱图，均方根谱图，功率谱图，对数谱图，并进行IFFT恢复出正弦波。(FFT and IFFT)