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ofdmbpsk
it is very useful for those students who want to do research in ofdm
- 2010-12-04 13:35:46下载
- 积分：1
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RESEARCH_ON_END-TO-END_HANDOFF
说明： 本文在研究IEEE802.16e协议和SIP协议的基础上，提出了利用
SIP解决IEEE802.16接入网络中端到端切换的新方案。该方案采用跨
层切换的设计思想，联合MAC层和应用层SIP协议，在底层链路切换
的同时，完成应用层会话的修改，加快了切换过程，减少了切换时延，
提高了切换成功率。本文基于NS2仿真平台，完成了相应的仿真平台
搭建过程，实现了SIP协议模块和WiMAX协议模块的融合，扩展了SIP
协议模块的部分消息，最终在基于SIP协议模块和WiMAX协议的统一
NS2平台上实现了基于WiMAX接入、支持SIP扩展功能的SIP会话建
立和修改过程。
( On the basis of study of WiMfAX and SIP, a new mechanism using
SIP to achieve end-to-end handoff under IEEE802.16e access networks is
Ob
proposed
handoffs,
in this thesis. The mechanism adopts a cross-layer design
which means that the l}iIAC layer handoff procedure can
interleaved with that of the application layer. During the handoff at link
)
- 2010-04-28 09:31:08下载
- 积分：1
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ANN-in-maneuvering-target-tracking
在机动目标跟踪中，机动目标模型是机动目标跟踪的基本要素之一，一般希望机动目标模型能准确表征目标机动时的各种运动状态。比较常用的模型有匀速运动(CV)模型、匀加速运动(CA) 模型、时间相关模型（Singer）和机动目标“当前”统计模型。上述模型均采用机动频率表征目标的机动情况。在应用当中，通常采用固定的机动频率，这就表示机动目标的机动时间是一定的，而实际上机动目标的机动时间是不断变化的，也就是说机动频率是不断变化的，采用固定机动频率必然会带来误差。采样周期在0.5—2S时，机动频率越小跟踪精度越高[1]，但机动频率仍然是固定值。本文提出的基于神经网络的机动频率自适应调整方法可以使机动频率随机动而变化，从而提高状态估计的准确性，提高跟踪精度。本文将小波神经网络用于机动目标跟踪中机动频率的自适应调整，该算法对机动目标“当前”统计模型中的机动频率进行实时修改, 从而自适应的改变机动频率,使跟踪算法与目标的真实状态更接近。该算法采用小波神经网络的离线训练，实时性好。(The maneuver of the maneuvering target is uncertain. The maneuvering frequency is constantly changeable, but traditionally it is beforehand determined as a constant based on the target state estimation in the state model of the maneuvering target. The maneuver of the maneuvering target makes the kinematics equation of the target model mismatch with the practical motion model and the tracking error will be increased. Based on the advantages of the self-learning, the rapid convergence rate and the nonlinear approximation ability of the wavelet neural network, it was put forward to be used in the field of target tracking in the paper. The new residual is used as the input of the wavelet neural network, the output of the network is used to adjust adaptively the maneuvering frequency of the CS model. The algorithm is more close to the real state of the target. The simulation results showed that tracking error can be reduced and the tracking accuracy can be improved.)
- 2009-12-19 07:11:54下载
- 积分：1
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psatsoft
PSAT软件包，基于matlab的电力系统分析软件，包括程序和说明(PSAT software package, based on the matlab power system analysis software, including the procedures and instructions)
- 2011-11-03 22:14:42下载
- 积分：1
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CentralDifference
中心差分法，matlab计算结构动力学响应程序。(Central difference method, structural dynamics matlab calculate the response program.)
- 2016-04-13 14:26:53下载
- 积分：1
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我课设编写的卡尔曼滤波用于组合导航算法测试例程
关于神经网络控制，可以提取一幅图中想要的目标，包括轨道机动仿真、初轨计算,包含优化类的几个简单示例程序，表示出两帧图像间各个像素点的相对情况，能量谱分析计算。
- 2023-08-06 11:10:03下载
- 积分：1
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p
说明： MUSIC算法；是平面阵的。很好用。大家交流学习(MUSIC algorithm is planar array. Good use. To facilitate the exchange of learning)
- 2009-06-03 04:33:55下载
- 积分：1
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xxwin
直线一级倒立摆仿真动画，用于直线一级倒立摆仿真(Linear inverted pendulum simulation animation)
- 2011-06-09 15:31:13下载
- 积分：1
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fingerprint-classification5
指纹分类是指纹识别重要环节，该程序是指纹分类中LENXMID的MATLAB源码(Fingerprint classification is an important part of fingerprint identification, fingerprint classification in the program is the MATLAB source LENXMID)
- 2011-07-07 09:19:35下载
- 积分：1
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6
说明： MATLAB图像处理源程序6：
程序代码说明
P0610：神经网络的实例 (MATLAB image processing source code 6: Procedure Code Description P0610: examples of neural network)
- 2013-05-20 23:56:50下载
- 积分：1
