fenleiqi

求解无约束优化问题的算法效率与性能的测试函数(Solving the unconstrained optimization problem, the algorithm efficiency and performance of test functions)

Mathematic Algorithm to make correlation Minkowski

surface acoustic wave device In_Err_Apodized_Filter

D2D控制信道代码，包括通信模型构建，资源池确定，traffic分配，资源分配，SINR及throughput的计算(D2D channel code, including communications modeling, resource pool determines, traffic assignment, resource allocation, SINR and throughput computing)

matlab图像对比度的计算 文件中包含许多不同对比度的图片 (Matlab image contrast calculation file contains many different contrast images)

用于GUI界面设计和开发的一本好书~ 深入讨论MATLAB图形绘制的方式、句柄图形概念、图形的进阶操作、人机接口的建立方法与程序编译转文件问题技巧。(GUI interface for the design and development of a good book ~ depth discussion of the way MATLAB graphics rendering, handle graphics concepts, graphics, advanced operations, human-computer interface to establish methods and procedures for compiling the file transfer problem skills.)

code djekstra matlab

数字图像处理课程上机实验4_Matlab图像锐化-Sobel，Laplacian算子(Digital Image Processing courses on experiments 4_Matlab image sharpening-Sobel, Laplacian operator)

分析非平稳信号的工具包，时频工具包，能帮你分析非平稳信号(Analysis Toolkit non-stationary signals, time-frequency toolkit can help you analyze non-stationary signals)

说明：  OFDM是将高速串行数据分成成百上千路并行数据,并分别对不同的载频进行调制,这种并行传输体制大大扩展了符号的脉冲宽度,提高了抗多径衰落的性能。同时,在传统的频分复用方法中,各子载波之间的频谱互不重叠,频谱利用率较低。而采用OFDM技术,一个OFDM符号之内包括多个经过调制的子载波的合成信号,每个子载波在频谱上相互重叠,这些频谱在整个符号周期内满足正交性,因而在接受端可以保证无失真恢复,从而大大提高频谱利用率。(OFDM divides high-speed serial data into hundreds of parallel data channels and modulates different carrier frequency separately. This parallel transmission system greatly expands the pulse width of symbols and improves the performance of anti-multipath fading. At the same time, in the traditional method of Frequency Division multiplexing, the spectrum between the sub-carriers does not overlap each other, the spectrum utilization ratio is low. In the case of OFDM, an OFDM symbol consists of multiple modulated sub-carriers, each of which overlaps in the spectrum, which is orthogonal throughout the symbol period, thus, no distortion recovery can be ensured at the receiving end, thus greatly improving the spectrum utilization ratio.)