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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
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Watterson_channel
说明: watterson信道模型,包含四种模型,有3径和4径两类(watterson channel model, including the four models, there are two types of 3 tracks and 4 tracks)
- 2021-04-23 22:18:47下载
- 积分:1
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MATLAB-GUI
《精通MATLAB GUI设计(第2版)》的源程序(MATLAB GUI)
- 2013-07-18 11:33:49下载
- 积分:1
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msk_me
MSK的两种调制与解调算法,对于初学者来说很有帮助(MSK modulation and demodulation of the two algorithms is very helpful for beginners)
- 2011-09-14 23:28:53下载
- 积分:1
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ps
说明: 进程列表程序,包含AIX, System V, SUNOS (The app for listing processes, containing AIX, System V, SUNOS)
- 2001-01-06 00:00:00下载
- 积分:1
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Kalman工具箱.rar
Kalman工具箱,用做卡尔曼滤波的好工具!(Kalman toolbox,a good toolbox for carring out kalman filter.)
- 2005-08-31 15:23:34下载
- 积分:1
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Bluetooth_Full_Duplex
Simulink® and Stateflow® model of a full duplex Bluetooth communication link transmitting HV1, HV2, HV3, and SCORT [1] voice packets, and DM1 data packets. A system parameters block configures the whole model s packet type, slot pair and channel type. Stateflow is used to implement the acknowledgement scheme for the data packets and the SCORT receiver state machine.
NOTE: A version of this model which works with the current release of MATLAB and Simulink is shipped with the Communications Blockset™ .
The model includes wave file I/O, CVSD speech coding, HEC, payload CRC for DM1, FEC, framing, GFSK Modulation, frequency hopping, hop sequence generation, an 802.11b interferer, BER meters, throughput meters, plus spectrum, timing and spectrogram plot (which can be turned-off).
- 2015-02-04 04:09:00下载
- 积分:1
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scatterbar
scatterbar就是画出三维散点柱状图,并且可以调整柱子的大小和颜色渐变,比原函数bar3更方便,更好用。(scatterbar is to draw three-dimensional scatter histogram, and can adjust the size and color gradients pillars, and more convenient than the original function bar3, easier to use.)
- 2020-08-05 16:38:34下载
- 积分:1
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daolibai
本程序可以实现利用神经网络算法对倒立摆的稳定控制(Stability control procedures can be achieved using neural network algorithm for inverted pendulum)
- 2015-02-01 14:45:03下载
- 积分:1
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integrate_numeric
数值积分演示 可以说明数值积分 在课上使用(it is a matlab program about Numerical integration,it would be used in class to show Numerical integration to the classmate)
- 2011-12-16 22:48:49下载
- 积分:1