搜索结果: 1-15 共查到“GPS/INS”相关记录31条 . 查询时间(0.087 秒)
针对黑飞无人机威胁空域安全问题,结合无人机卫星/惯性组合导航 (Global Positioning System/Inertial Navigation System，GPS/INS)系统的归一化新息平方（Normalized Innovation Squared，NIS）检测和GPS欺骗原理，分析了欺骗距离和GPS定位精度对诱捕无人机的影响，设计了一套诱捕无人机的完整步骤，研究目标是在不被无人...
基于加权自适应平方根容积卡尔曼滤波的GPS/INS组合导航方法
组合导航 量测噪声 容积卡尔曼滤波 加权
2018/5/21
针对GPS/INS组合导航系统中，由于量测噪声统计的不确定性导致平方根容积卡尔曼滤波器(SCKF)滤波精度下降甚至发散的问题，该文提出一种基于加权的自适应SCKF(WASCKF)方法。该方法首先利用移动开窗理论对SCKF新息的协方差阵进行最大似然估计，实现对测量噪声统计特性的在线调整；然后，利用加权理论，依据窗口内不同时刻信息的有用程度的不同而设置相应的权值，增强对窗口内有用信息的利用。最后，将W...
Analysis of the Kalman Filter with Different INS Error Models for GPS/INS Integration in Aerial Remote Sensing Applications
Direct Georeferencing Aerial Triangulation GPS/INS Integration
2015/12/17
In the Kalman filter used for the integration of GPS/INS, the inertial sensor error model is usually considered as a random constant or
random walk for both gyroscopes and accelerometers. However, th...
Integration of GPS/INS/Vision Sensors to Navigate Unmanned Aerial Vehicles
Aerial Fusion GPS/INS Multisensor Navigation Vision
2015/11/23
Two Kalman filers have been designed to operate separately to provide a reliable check on the navigation solutions. When GPS signals are available, the GPS measurements are used to update the error st...
A NEW SURVEY ON SELF-TUNING INTEGRATED LOW-COST GPS/INS VEHICLE NAVIGATION SYSTEM IN HARSH ENVIRONMENT
GPS/INS integration Extended Kalman Filter Fuzzy Inference System
2015/9/10
Nowadays, Global Positioning System (GPS) receivers are aided by some complementary radio navigation systems and Inertial Navigation Systems (INS) to obtain more accuracy and robustness in land vehicu...
An Inexpensive and Robust GPS/INS Attitude System for Automobiles
Inexpensive Robust GPS/INS Attitude System Automobiles
2015/6/26
Many of the sophisticated control systems of modern automobiles require measurements of the vehicle’s attitude. Commercial GPS attitude systems are the method of choice for measuring attitude in many ...
Performance Analysis and Experimental Validation of a Doppler-Aided GPS/INS Receiver for JPALS Applications
Doppler-Aided GPS/INS Receiver JPALS Applications
2015/6/26
The Joint Precision Approach and Landing System (JPALS) is the next generation aircraft precision approach and landing system being sponsored by US Department of Defense. This GPS-based system will pr...
基于不确定融合的GPS/INS 组合导航滤波算法
多信源不确定融合 扩展卡尔曼滤波 等效测量值 GPS/IMU
2015/7/16
针对实际车载组合导航系统测量中不确定噪声的问题, 提出一种基于不确定融合估计的GPS/INS 组合导航滤波算法, 建立了导航系统的状态方程和观测方程; 通过多信源不确定融合估计, 得到多传感器的等效测量值以及误差方差阵; 对系统方程进行滤波处理, 得到车辆的准确位置. 车载系统的实测数据表明, 不确定噪声下的融合估计结果优于独立白噪声假设下的融合估计, 并验证了所提出算法的有效性和实用性.
GPS/INS SYSTEMS FOR COMPILATION OF DIGITAL LARGE-SCALE ORTHOPHOTOS
Photogrammetry Mapping Orthoimage GPS/INS Orientation
2015/6/1
The paper describes the first results of a study, supported by an Italian research project “Integrated Inertial Positioning Systems in Aerial Photogrammetry” on the potential use of these techniques f...
One of the basic problems of photogrammetry is the reconstruction of the elements of the exterior orientation. Over the last 40 years, triangulation techniques have been developed and improved, in ord...
一种基于矢量跟踪的GPS/INS深耦合跟踪环路设计
数据异步 信号跟踪 CIC 滤波 深耦合
2016/10/12
针对GPS 与INS 两路数据更新频率不一致的问题，提出一种基于矢量跟踪的GPS/INS 深耦合跟踪环路 设计方法。利用滤波外推与CIC 滤波相结合的方法，将误差修正后惯导信息回馈到各矢量信号跟踪信道，以调控伪 码和载波数控振荡器(controlled oscillator，NCO)，实现了跟踪环路的闭合，最终建立起了两路相互独立数据之间相互 辅助、相互修正的关系。仿真实验结果表明，设计的GPS/...
Non-Linear Filtering for Precise Point Positioning GPS/INS integration
GPS PPP INS EKF UKF PF and tightly coupled
2014/11/28
This research investigates the performance of non-linear estimation filtering for GPS-PPP/MEMS-based inertial system. Although integrated GPS/INS system involves nonlinear motion state and measurement...
GPS/INS 超紧组合环路信息耦合模型及机理分析
GPS/INS 超紧组合 组合导航 跟踪环路 耦合机理
2014/4/11
在对不同GPS/INS 超紧组合模型特点分析的基础上构建超紧组合中惯性与卫星环路信息耦合模型, 提出了环路复制信号参量的外部控制方法, 论证了超紧组合模型中环路信息与惯性导航结果的耦合机理. 最后, 进行了超紧组合耦合实验验证和分析, 结果表明, 超紧组合系统环路信号参量偏差与惯性状态误差间有着紧密的内在联系和深层次的耦合机理.
露天矿卡车低成本GPS/INS组合导航系统动态对准模型
露天矿 惯性导航系统 初始对准 Cubature卡尔曼滤波 大失准角
2013/12/6
低成本GPS/INS组合导航系统是露天矿卡车调度系统的理想定位系统，但低成本GPS/INS无法实现静态初始对准。提出地固系下捷联惯性导航系统动态初始对准的非线性误差模型，该模型不需要假设失准角为小角并且直接在地固系下解算，尤其适合于GPS辅助INS动态对准。提出一种简化的Cubature卡尔曼滤波进行GPS/INS数据融合。采用车载实测数据仿真露天矿卡车初始对准实验，实验结果表明：利用GPS信息辅...
基于低通滤波技术的GPS/INS组合导航
INS 误差模型 低通滤波器 卡尔曼滤波 GPS/INS 组合导航
2016/9/21
针对GPS/INS 组合导航系统中的惯性导航系统(inertial navigation system，INS)存在的随机误差的问题， 研究了一种通过低通滤波器减弱或消除GPS/INS 组合导航系统高频噪声的方法。分析了陀螺仪与加速度计在三轴方 向上的误差源及其相关性，给出无人机组合导航系统中GPS/INS 组合导航误差模型，针对INS 数据中所含的高频误 差，构造了低通滤波器以消除其对导航精度的...