-
VLC-using-OFDM
将OFDM技术运用在可见光通信的研究，并且把OFDM的高峰均比这一缺点进行了建设性的运用。(In
particular, the use of OFDM (orthogonal frequency division
multiplexing) for intensity modulation is investigated. The high
peak-to-average ratio (PAR) in OFDM is usually considered
a disadvantage in radio frequency transmission systems due
to non-linearities of the power amplifier. It is demonstrated
theoretically and by means of an experimental system that the
high PAR in OFDM can be exploited constructively in visible light
communication to intensity modulate LEDs. It is shown that the
theoretical and the experimental results match very closely, and
that it is possible to cover a distance of up to one meter using a
single LED.)
- 2013-11-27 16:14:24下载
- 积分：1
-
PSO-SVM
说明： 利用粒子群优化算法对支持向量机中的核函数参数和惩罚参数进行优化是非常有效的手段，可以大大提高鲁棒性。实际过程中读者可通过下载我上传的代码，简单进行修改和阅读附件论文即可快速掌握相关方面的知识，快速使用这一方法。(Particle swarm optimization (PSO) is a very effective method to optimize the kernel function parameters and penalty parameters of SVM, which can greatly improve the robustness. In the actual process, readers can quickly grasp relevant knowledge and use this method by downloading the code I uploaded, simply modifying and reading the attached paper.)
- 2021-05-07 20:43:36下载
- 积分：1
-
999
根据有无固定基础设施，无线局域网又可分为BSS (Basic Service Set)和IBSS (Independent Basic Service Set)。我们要研究的ad hoc网络属于后者。假设在一个ad hoc网络中，移动节点的发射功率PTx总是恒定的。要发送数据的移动节点总是先监听信道，测量接收到的信号功率X，其中X= I + N, I为接收到的干扰，N是噪声。移动节点只有在X＜INThre时，才可以发射。式中，INThre为背景噪声门限。
在仿真中，我们规定每个移动节点的发射功率是常数，PTx = 1W；接收节点接收机的灵敏度Smin = -80 dBm；信号质量 min = 2 dB；系统的背景噪声门限INThre = 1.2e-10。
(According to the availability of fixed infrastructure, wireless local area network can be divided into BSS (Basic Service Set) and IBSS (Independent Basic Service Set). We have to study the ad hoc network belong to the latter. Assuming in an ad hoc network, mobile node s transmission power is always constant PTX. To send data to the mobile node always monitor channel, measuring the received signal power X, which X = I+ N, I was received interference, N is the noise. Mobile node only when X <INThre when it is fired. Where, INThre threshold for background noise. In the simulation, we require that each mobile node s transmission power is constant, PTx = 1W receiver node receiver sensitivity Smin =-80 dBm signal quality )
- 2008-01-16 00:23:39下载
- 积分：1
-
MATLAB_chinese
A MATLAB textbook. A good eBook for MATLAB user
- 2010-12-21 15:15:35下载
- 积分：1
-
tutorial
Discriminant Analysis tutorial for toolbox
- 2010-05-30 16:40:07下载
- 积分：1
-
irisphaseprot
work in matlab, iris protected
- 2013-10-22 09:17:33下载
- 积分：1
-
hiy
user autentication matlab using correlation
- 2010-09-07 01:38:26下载
- 积分：1
-
Rongekutta
龙格库塔算法，用于姿态角的解算，此程序采用四阶龙格库塔法进行计算。(Ronge Kutta algorithm for attitude angle calculation, this procedure using four order Ronge Kutta method.)
- 2016-06-04 16:30:42下载
- 积分：1
-
CAN
pic单片机CAN通信程序
CAN自测试收发编程，CAN发送邮箱0以一定的时间间隔发送数据，接收到数据后,将接收数据加1作为下一次的发送数据(pic 18f4580 can code，void canint() )
- 2010-01-12 11:41:37下载
- 积分：1
-
draw_pic
matlab画图的一个小程序，大家可以了解一些最基础的应用程序(matlab drawing a small program, we can understand some of the most basic applications)
- 2009-07-10 21:38:45下载
- 积分：1
