tractionmode

谱分析子空间MUSIC算法的实现以及MUSIC与直接估计的比较(Spectral analysis of subspace MUSIC MUSIC algorithm implementation and comparison with direct estimates)

本文先介绍了整个系统的硬件电路设计，而后用VHDL硬件描述语言完成了系统控制程序的编写，并对系统进行了程序仿真及调试验证。本文特别详细的讨论了系统程序的编写，因为他关系到整个系统的功能实现，也是本设计的重点所在。设计中选用Protel 99se作为电路图编辑软件，选用Max+plusⅡ作为仿真环境。(This article first describes the overall system hardware design, then use the VHDL hardware description language, the system control program to complete the preparation, and system simulation and debugging of program verification. This particular system is discussed in detail the preparation process, because he related to the functions of the entire system to achieve, is the focus of this design. Design selected Protel 99se as circuit editing software, use Max+ plus Ⅱ as a simulation environment.)

用声卡输出的单边带信号源，SSB下边带信号，载波15KHz，输入声音带宽设为300~3.4KHz，SSB调制后输出带宽为11.6K~14.7KHz，可以给SSB解调器实验做信号源了。(Single-sideband signal with the sound output source, SSB below band signal, carrier 15KHz, enter the voice bandwidth set at 300 ~ 3.4KHz, SSB modulated output bandwidth 11.6K ~ 14.7KHz, you can do to the SSB demodulator source experiment the.)

这是一个动画程序，描述的是手机的充电过程，十分有趣(This is an animation program, describes the process of charging the phone, very interesting)

区块截断编码对图像进行压缩处理，为提高压缩率采用自适应的方式对小区块进行划分(Block truncation coding for image compression, in order to improve the compression ratio using adaptive way to divide the cell block)

说明：  运用matlab编写DNN程序，带有几个实例，有BP神经网络，relu，sigmod等~(Using matlab to write DNN program, with several examples, such as BP neural network, relu, sigmod, etc.~)

Estimate pdf of data set spanning orders of magnitude

《Matlab/Simulink通信系统建模与仿真实例分析》一书配套光盘，包含全部m文件、simulink模块等 (" Matlab/Simulink modeling and simulation of communication systems case study," a book companion CD contains all the m file, simulink module)

可以直接使用的代码，是关于图像过滤的代码，同时可以进行soble过滤和平均过滤(The code can be used directly, image filtering code can be soble filter and average filter)

该损伤模型通过 商用有限元软件ABAQUS /Explicit 的用户子程序VUMAT 实现，并使用该模型对碳纤维增强环氧树脂 复合材料层合板在横向低速冲击作用下的损伤和变形行为进行预测分析． 数值仿真的结果与试验结 果进行了比较，吻合良好，验证了该模型的有效性．(Through coding user subroutine VUMAT of finite element software ABAQUS /explicit， and applied the model to an example，carbon fiber reinforced epoxy composite laminates under low velocity impact，the prediction for damage and deformation were good agreement with the experimental results．)