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Description: TOA定位算法，包括Musica算法的具体实现，误差产生等等 -TOA location algorithm, including Musica in the proposed algorithm, the error generated, etc.
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Size: 1024 |
Author: 何杰 |
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Description: 在TOA测距的基础上，提出了一种三维无线传感器网络节点定位算法，并对其性能进行了分析，给出了算法的时间同步误差和定位误差。最后在现有仿真平台OMNET++的基础上构建三维仿真模块，对算法进行了仿真实现，给出了该算法的定位精度和覆盖率-This paper proposes one three-dimensional localization algorithm based on TOA distance measurement and analyzed the performance of the algorithm calculated time synchronization error and localization error. Finally it constructed three-dimensional simulation modules based on OMNET++ and implemented the algorithm educed the localization precision and coverage.
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Size: 296960 |
Author: 于文娟 |
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Description: 通过将IR-UWB 穿墙测距NLOS 误差建模为由空间结构导致的几何距离误差和脉冲信号波形失真导致的峰值偏移误差．依据高频射线理论推导了基于收发节点距离和墙体参数的几何距离误差限． 通过对IR-UWB 信号穿墙透射机理的建模，研究了频率依赖性导致的波形失真问题及相应的TOA 测距误差．仿真结果表明，几何距离误差主要由墙体障碍物参数决定，受收发节点间距离的影响不大 IR-UWB 信号穿墙传播会发生波形畸变，墙体的非均匀性和相对介电常数越大，波形畸变越严重，由此导致的TOA 相关峰值偏移误差维持在脉冲信号距离分辨率范围内．-As the TOA ranging error was always corrupted by the direct path blockage and excess delay in
complicated indoor environments，the NLOS ranging error due to IR-UWB through wall propagation was modeled
by dividing it into two parts: the geometrical error caused by the pulse transmitted through wall，and the
peak biased error caused by the pulse waveform distortion due to frequency dependence of huge bandwidth．
The theoretical geometrical error bound was derived from transceiver distance，wall thickness and materials．
The IR-UWB through wall propagation was modeled using sub-band method，and the peak biased errors were
investigated through the waveform distortion of IR-UWB signal propagated in different wall structures． The simulation
results show that the geometrical error was mainly determined by the obstacles parameters and the peak biased errors caused by IR-UWB waveform distortions were within the distance resolution of IR-UWB signal．
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Size: 281600 |
Author: 丁龙 |
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Description: 为了减小NLOS 传播的影响，基于几何结构的单次反射统计信道模型，该文提出一种NLOS 环境下的TOA/AOA 定位算法。利用RBF 神经网络较快的学习特性和逼近任意非线性映射的能力，对NLOS 传播的误差进行修正以减小NLOS 传播的影响，再利用最小二乘(LS)算法进行定位，从而提高系统的定位精度。-In order to mitigate the effect of NLOS propagation, based on the Geometry Based Single- Bounced
(GBSB)statistical model, a TOA/AOA location algorithm based on the RBF neural network is proposed. The
fast study and non-linear approach capacity of the neural network is made use of to correct the error of NLOS
propagation, then the position is calculated by Least-Square (LS) algorithm to improve the location accuracy.
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Size: 710656 |
Author: 韩心 |
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Description: 无源定位的一些仿真代码，包括时TOA、TDOA、DOA、RSS。2维的线性、非线性、极大似然算法和克拉美罗下界、均方误差的代码-Passive targeting some simulation code, including when TOA, TDOA, DOA, RSS. Two-dimensional linear, nonlinear, maximum likelihood algorithm and Cramer-Rao lower bound, mean square error code
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Size: 15360 |
Author: 任源博 |
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Description: 测距误差分级的室内TOA定位算法_王沁，很好的资料-The indoor positioning algorithm based on TOA _ Wang Qin ranging error classification, very good information on distant and indistinct
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Size: 601088 |
Author: 龙 |
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