Description: The principle of positioning with the Global Positioning System (GPS) is based on determining the distance of at least four GPS satellites to a receiver. For that purpose the so-called code measurements can be used, so that the position of the receiver can be determined up to several meters. In order to allow for navigation with centimeter accuracy, it is however required to use the very precise carrier phase measurements, since the phase of the carrier wave of the GPS signal can be measured up to several millimeters. Unfortunately, a receiver can only measure the phase of the carrier 芒猬 Platform: |
Size: 4818242 |
Author:xufarmer_2007@yahoo.cn |
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Description: 详细介绍MCL算法，是由Sebastian Thrun a, Dieter Fox, Wolfram Burgard, Frank Dellaert所著的论文，发表于Artificial Intelligence上。-Mobile robot localization is the problem of determining a robot’s pose from sensor data. This
article presents a family of probabilistic localization algorithms known as Monte Carlo Localization
[MCL]. MCL algorithms represent a robot’s belief by a set of weighted hypotheses [samples],
which approximate the posterior under a common Bayesian formulation of the localization problem.
Building on the basic MCL algorithm, this article develops a more robust algorithm called Mixture-
MCL, which integrates two complimentary ways of generating samples in the estimation. To apply
this algorithm to mobile robots equipped with range finders, a kernel density tree is learned that
permits fast sampling. Systematic empirical results illustrate the robustness and computational
efficiency of the approach. 2001 Published by Elsevier Science B.V.
Keywords: Mobile robots Localization Position estimation Particle filters Kernel density trees Platform: |
Size: 1425408 |
Author:xuyuhua |
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Description: This a simple position location algorithm using Least Square Estimation algorithm. Timing information is time of flight (TOA) of signal between Tx and Rx. This code generally describes the Positioning method, Also it plots final coordinate of node in 2D. All other information was inlcuded as comments in source code.-This is a simple position location algorithm using Least Square Estimation algorithm. Timing information is time of flight (TOA) of signal between Tx and Rx. This code generally describes the Positioning method, Also it plots final coordinate of node in 2D. All other information was inlcuded as comments in source code. Platform: |
Size: 2048 |
Author: |
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Description: RS（31，15）译码关键步骤的veilog HDL算法实现，包括关键方程求解，错误位置估计，错误值计算等-RS (31,15) decoding a key step in the algorithm veilog HDL, including key equations, position estimation error, error value, such as Platform: |
Size: 12288 |
Author:冯小刚 |
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Description: The main reason for inaccuracies observed in location
estimation, imposed by the propagation conditions of the
wireless channel, is the Non Line Of Sight (NLOS) due to
transmitted signal blocking. Because of the NLOS, the first
TOA, which bears information related to the mobile
terminal position, suffers stronger attenuation than later
arrivals and therefore wrong timing information is
obtained yielding biased position estimation. Several
NLOS mitigation algorithms have been presented. One of
the most common approaches consists of correcting the
TOA measurements exploiting the fact that the variance of
the TOA measurements is significantly increased in NLOS
scenarios Platform: |
Size: 233472 |
Author:zhangjianrong |
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Description: 这个程序可以计算给定点处的小区信号范围覆盖。-is program computes a map of visibility from a selected point on a topography. It has been written to help the search for radio relay best location. Because it considers only direct line of sight, it gives a good estimation for possible radio link for short distances only (less than 10 km), neglecting curvature of the Earth, Fresnel zone and atmospheric refraction on radio waves propagation. The program computes the relative elevation angle of the mask for each point (the angle is null or negative if the point is visible).
The function needs a digital elevation model Z and associated (X,Y) vectors or matrices of coordinates (same unit as Z), position of the point (X0,Y0), the antenna height H0 (for instance 4 m), and the hypothetic antenna height Ha on each topography points (for instance 3 m). When no output argument is given, the function plots a map of the results (color map of mask angles, and blank for visible points, see example screenshot).
The script is not fully optimize Platform: |
Size: 434176 |
Author:ken |
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Description: 當天線位置估計錯誤時，可將其依據演算法修正回來，並且使用apdaptive beamforming技術，能偵測出jammer在哪兒的源碼。-Antenna position estimation error, the same day can be revised based on algorithms to come back and use apdaptive bemforming technology, able to detect where a jammer source. Platform: |
Size: 1024 |
Author:QQMAN1986 |
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Description: A COMPARISON OF A FLUX OBSERVER WITH A BACK-EMF TECHNIQUE FOR SENSORLESS ROTOR POSITION ESTIMATION Platform: |
Size: 1913856 |
Author:hacen |
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Description: 提出了一种多姿态知识模型, 并以之从人脸器官梯度图中获得候选脸的大小、位置、姿态类别和眼、嘴重心坐标, 然后
按姿态类别将候选脸与对应的模板进行匹配确认人脸. 该人脸检测算法集人脸检测、姿态估计和眼、嘴定位于一体, 具有检测速
度快的特点, 适于多姿态多人脸场合的人脸检测. 该算法只利用了图像的灰度信息, 因此对灰度图像和彩色图像的人脸检测均
适用.-Proposes a multi-gesture knowledge model, and to the organs of the gradient map from the human face to get the candidate face size, location, posture, type and eyes, mouth center coordinates, and then press the gesture categories will face a candidate to match with the corresponding template to confirm face. The set of face detection algorithms face detection, pose estimation, and eyes and mouth position in one, with detection of the characteristics of speed, suitable for Multi-pose face of occasions more than face detection. The algorithm uses only images grayscale information, so the grayscale images and color images of face detection apply. Platform: |
Size: 480256 |
Author:天使 |
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Description: Paper about a new close loop current model flux observer to estimate the rotor flux, position and velocity of an induction machine. The current observer includes carefully designed sliding mode functions which are derivative of the fluxes along the and axes. Therefore, when the estimated current converges to the measured one, the flux estimation is a mere integration of the sliding mode function. Platform: |
Size: 484352 |
Author:gregbur |
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Description: 位置感知应用程序市场
位置估算技术
其它S60 平台运行时中的位置API
使您的应用程序感知位置时需要考虑的因素
协助测试的开发工具。-Location-aware applications market position estimation techniques other S60 platform run-time the position of the API to your application-aware location factors to be considered to help test the development tools. Platform: |
Size: 3002368 |
Author:liu |
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Description: A HOSM Observer with an Improved Zero-speed Position Estimation
Design for Surface PMSM Sensor-less Control Platform: |
Size: 780288 |
Author:ConvHelp |
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Description: kalman滤波 针对二阶系统的位置速度估计 适合于初学kalman滤波算法的朋友 代码含有详细解释-kalman filter for the position of second-order system is suitable for beginners speed estimation kalman filter algorithm friend code contains detailed explanations Platform: |
Size: 1024 |
Author:李楠 |
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Description: 相当强大的代码，能够从kinect采集的数据中学习出人的头部姿势-Very powerful code, the data collected from the kinect to learn a person' s head position Platform: |
Size: 6390784 |
Author:leonchan |
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Description: 头部姿势估计的程序，利用鼻尖确定头部的方向，进而确定姿势，采用随机回归森林算法。-Head pose estimation procedures, the use of nose to determine the direction of the head, and to determine the position, using the random forest regression algorithm. Platform: |
Size: 6390784 |
Author:apollo |
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Description: 提出了基于无线传感器网络的浮标网络水下GPS定位系统模型，分析了
该模型的结构、功能以及工作过程，并从几何角度探讨了水下目标的声学定位算
法。结合Range-Free算法与分布式算法的思想，设计了一种传感器节点自定位算
法，称为BSR（Beacons Signal Ring）定位算法，并对该算法的性能进行了评估与
比较。该算法在锚节点处的信标信号中引入能量等级的机制，无需相邻传感器节
点间信息交换，有效降低了算法复杂度与通信开销。性能分析结果显示，该算法
性能良好，在应用环境下相比于APIT算法与质心算法具有更低的位置估计误差。
论文还研究了基于双元检测传感器的协作式的目标跟踪策略，对相应的跟踪过程
进行了描述。提出了使用加权质心算法的目标位置估计模型，以及线性预测机制，
使跟踪过程具有较小的计算和通信代价。-In this thesis,we presents a buoy network of underwater GPS positioning system
model based on the wireless sensor network.The structure,function and process in the
model were analyzed.Underwater target acoustic localization algorithm were explored
through geometry way.Combined with the idea of Range-Free algorithm and distributed
algorithm,a sensor nodes self-localization algorithm were designed,which called BSR
(Beacons Signal Ring)localization algorithm,the algorithm performance evaluation and
comparison has also been presented.The algorithm use a small number of anchor nodes.
Each anchor emits beacons at different power levels.This mechanism does not required
information exchange between neighboring sensors,and reduced the complexity of the
algorithm and communication overhead effectively.The results of performance analysis
showed that BSR provides a lower position estimation error than APIT and Centroid
under a wide range of conditions.The thesis introduced process of ta Platform: |
Size: 1416192 |
Author:lq |
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Search - position estimation