fupinxiangying

重型汽车车内声压级预测与主要噪声源分析 中国重型汽车正成为中国汽车产业在国际市场上最具竞争力的强势产业，但 目前国产重型汽车的 NVH（Noise,Vibration and Harshness）性能和国际先进水平 之间仍存在一定的差距。 (Heavy automotive interior SPL prediction and analysis of the major sources of noise China National Heavy Duty Truck is becoming China s auto industry the most competitive in the international market a strong industry, but At present, the domestic heavy-duty vehicles of NVH (Noise, Vibration and Harshness) performance and the international advanced level There is still a gap between.)

一些有关fft 的东西，与大家共同欣赏。谢谢，大家的指正。(something about fft)

本程序是介绍关于先进的控制算法-自适应动态规划的，采用迭代的方法进行控制器的设计。(This procedure is introduced on the advanced control algorithm- adaptive dynamic programming, iterative methods for controller design.)

Matlab FieldII for windows.版本7.2(Windows that runs Matlab 7.10, 32 and 64 bits Field_II_PC7.zip )

用照度分割法设计路灯花生米透镜，具体思路参照 张奇辉大功率LED照明系统光学设计方法研究 第四章 （非原创）(The method of illumination segmentation is used to design the peanut lens of street lamp. The concrete idea is referred to the fourth chapter of the optical design method of Zhang Qihui high power LED lighting system (not original))

基于LBP的图像特征提取算法,检索效果大家可是自己实现试试，这种算法还是比较有优势的，但还需要很多改进(image retrieval algorithm based on LBP)

基于地理位置的路由协议MAP的仿真matlab代码(Simulation matlab code based on the location of the routing protocol in MAP)

Image processing functions. AMBE, median 2D, image standard deviation of a pdf

说明：  这个程序是描述了跳频系统在部分边带干扰下的BFSK系统的仿真，主要是误码率计算函数(This procedure is described in some side-band frequency-hopping system under the disturbance of the BFSK system simulation, bit error rate is mainly a function)

说明：   该电路由一片四双向模拟开关集成电路CD4066为核心构成。每个电路内部有四个独立的能控制数字或模拟信号传送的开关。当水箱无水时，由于180K电阻的作用，使四个开关的控制端为低电平，开关断开，LED 不发光。随着水位的增加, 由于水的导电特性，使得IC的13脚为高电平，S1接通，LED1点亮。当水位逐渐增加时，LED依次发光指示水位。水满时， LED4发光， 显示水满。同时T1导通， B发出报警声，提示水已满。不需要报警声时，断开开关K即可。 (The circuit consists of a four-way analog switch integrated circuit CD4066 core composition. Within each circuit to control four separate digital or analog signal transmission in the switch. When the tank water, the role of the 180K resistor, so that the four low-side switch control, switch off, LED does not light. As the water level increases, the electrical properties of water, making the IC' s 13 feet high, S1 connected to, LED1 lights up. When the water level gradually increased, LED turn light level indication. Is full of water, LED4 LED display full of water. At the same time conducting T1, B alarm will sound, indicating that the water is full. Do not need to sound the alarm when the disconnect switch K can be.)