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2020 27th Saint Petersburg International Conference on Integrated Navigation Systems (ICINS)最新文献

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Creation of Conditions for the Maximum Suppression of Magnetic Field Influence on Zero Drift in Four-Frequency and Quasi-Four-Frequency Zeeman Laser Gyroscopes 四频和准四频塞曼激光陀螺仪中磁场对零漂移影响最大抑制条件的建立
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9133808
Y. Broslavets, A. A. Fomichev, D. M. Ambartsumyan, E. A. Polukeev
The research conducted in this work, was aimed at finding conditions that suppress the influence of the magnetic field on zero drift in Zeeman four-frequency and quasi-four-frequency laser gyroscopes. We determined the optimal areas within the gain contour in the active medium. During operation in those areas the maximum suppression of the influence of the magnetic field on the drift of the gyroscope is provided. A gyroscope control system that switches gyroscope to the regime of minimum magnetic sensitivity has been created. We obtained weakening of the effect of the magnetic field on zero drift by more than three orders of magnitude.
本研究旨在寻找抑制磁场对塞曼四频和准四频激光陀螺仪零漂移影响的条件。我们确定了有效介质中增益轮廓内的最佳区域。在这些区域工作期间,提供了磁场对陀螺仪漂移影响的最大抑制。建立了一种将陀螺仪切换到最小磁灵敏度状态的陀螺仪控制系统。我们得到磁场对零漂移的影响减弱了三个数量级以上。
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引用次数: 1
Vehicle Dead-Reckoning Autonomous Algorithm Based on Turn Velocity Updates in Kalman Filter 基于卡尔曼滤波下转弯速度更新的车辆航位自动推算算法
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9133748
Aleksandr Mikov, A. Moschevikin, R. Voronov
The paper presents a Kalman-based dead-reckoning algorithm for a vehicle. The algorithm uses inertial data only. No data from other sources of information are utilized. The proposed technique relies on two aspects: pseudo-acceleration removal procedure and novel turn velocity update (TVU) correction technique applied when the vehicle performs a maneuver. The dynamic algorithm performance was evaluated using real data obtained from the forklift and compared with the output of the ultra-wideband positioning system. To achieve this, the synchronization between UWB and inertial data was employed by aligning velocities in acceleration and deceleration moments. Seven experiments were carried out to test the method. The duration of each experiment varied from 4 to 24 minutes. The travelled distance corresponded to the range from 118 to 380 meters. The algorithm shows fair position estimation results with the data obtained from commercial off-the-shelf MEMS sensors on a long-term run. The median position error did not exceed 1.2 meters for all performed tests. The end position estimation error, respectively, was not worse than 1.2% of total travelled distance.
提出了一种基于卡尔曼的车辆航位推算算法。该算法仅使用惯性数据。没有利用其他资料来源的数据。该技术主要依赖于两个方面:伪加速度去除过程和机动时的新型转弯速度更新(TVU)校正技术。利用叉车实际数据对动态算法性能进行了评价,并与超宽带定位系统输出结果进行了比较。为了实现这一目标,通过对准加速和减速时刻的速度来实现超宽带和惯性数据之间的同步。为了验证该方法,进行了七次实验。每次实验的时间从4分钟到24分钟不等。行进的距离相当于从118米到380米的范围。该算法与商用现成的MEMS传感器在长期运行中获得的数据显示出合理的位置估计结果。所有测试的中位位置误差不超过1.2米。终点位置估计误差分别不大于总行程的1.2%。
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引用次数: 2
Application of a Micromechanical Gyroscope for Measuring the Angular Momentum in a Seminatural Modeling of Disturbed Rotation of a Space Probe in the Atmosphere 微机械陀螺仪测量角动量在空间探测器大气扰动旋转半自然建模中的应用
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9133848
V. Lyubimov, P.V. Lyubimov
We consider the problem of the experimental determination of the angular momentum induced by disturbing asymmetry torques during the motion of the probe model relative to its center of mass. The aim of the study is to develop a scaled-down model of a space probe for atmospheric descent for seminatural modeling of its motion relative to the center of mass with the measurement of the angular velocity by an on-board MEMS gyroscope. Numerical values of the angular velocity are used to calculate the angular momentum of the model.
本文研究了探针模型在相对于质心运动过程中由扰动不对称力矩引起的角动量的实验测定问题。本研究的目的是开发一个大气下降空间探测器的按比例缩小模型,通过机载MEMS陀螺仪测量其角速度,对其相对于质心的运动进行半自然建模。角速度的数值用于计算模型的角动量。
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引用次数: 0
Temperature Drift and Instability of a Zero Signal of Pendulum Compensating Q-Flex Accelerometer 摆补偿Q-Flex加速度计零信号的温度漂移和不稳定性
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9133987
S. Konovalov, D. Mayorov, A.E. Semenov, Yu.A. Ponomarev, V. E. Chulkov, A. Malykhin, M. S. Kharlamov, D.A. Malykhin
A main issue in high precision navigation grade accelerometers development is a provision of a zero signal and a scale factor stability and repeatability. A development and research experience for Q-flex and Si-flex compensating accelerometers allows to determine main causes of such instability and non-repeatability. Main causes are as follows: •manufacture errors in beams of an elastic suspension of a pendulum blade such as a non-flatness, a surface roughness, displacements of beam planes to general plane (both parallel displacements forming a box and angular rotations of beams); •deformations and shape distortions of beams during spraying metal of current leads; •a material structure heterogeneity in magnetic housings and pole cups of a plunger torque sensor of a device; •material structure changes in magnetic housings during operation of the device, primarily during temperature cycles. A number of technological errors in accelerometer elements leads to an appearance of stepwise changes in the zero signal and the scale factor, which are not amenable to algorithmic compensation. These errors are associated with features of super invar and quartz elements in devices, as well as with the features of technological processes. The paper describes a number of experimental observations carried out with Q-flex accelerometers from various manufacturers, gives an analysis of errors causes and provides recommendations to eliminate these considered errors.
高精度导航级加速度计开发中的一个主要问题是提供零信号和比例因子稳定性和可重复性。Q-flex和Si-flex补偿加速度计的开发和研究经验可以确定这种不稳定性和不可重复性的主要原因。主要原因如下:•摆叶弹性悬架梁的制造误差,如非平整度、表面粗糙度、梁面向一般平面的位移(包括平行位移形成盒子和梁的角旋转);•电流引线喷涂金属时梁的变形和形状扭曲;•设备柱塞扭矩传感器的磁性外壳和极杯的材料结构不均一性;•在设备运行期间,磁性外壳的材料结构会发生变化,主要是在温度循环期间。加速度计元件中的一些技术误差导致零信号和比例因子的逐步变化,这是不适合算法补偿的。这些误差与器件中超英瓦尔和石英元素的特点以及工艺过程的特点有关。本文描述了用不同制造商的Q-flex加速度计进行的一些实验观察,给出了误差原因的分析,并提供了消除这些误差的建议。
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引用次数: 2
A Robust Target Detection Algorithm Using MEMS Inertial Sensors for Shipboard Video System 舰船视频系统中基于MEMS惯性传感器的鲁棒目标检测算法
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9134003
Wen Liu, Xuefeng Yang, JianBao Zhang
Marine situational awareness is the core technology of intelligent ship, and the target detection is the important foundation of situational awareness. In this paper, a robust target detection algorithm using MEMS inertial sensors is proposed for sky-sea line detection for shipboard video system, the key idea is using the inertial data of the shipborne camera to estimate the position and angle of the sky-sea lines in the video frames, so as to achieve the accuracy of the detection area, improve the detection accuracy and reduce the interference of wave clutter. And it is proved by experiments that robust detection results have been achieved.
海洋态势感知是智能船舶的核心技术,而目标检测是态势感知的重要基础。本文提出了一种基于MEMS惯性传感器的舰载视频系统天海线检测鲁棒目标检测算法,其核心思想是利用舰载摄像机的惯性数据来估计视频帧中天海线的位置和角度,从而达到检测区域的精度,提高检测精度,减少波杂波的干扰。实验证明,该方法具有较好的鲁棒性。
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引用次数: 2
Adaptive Cubature Kalman Filter Algorithm Based on Quaternion Error Modeling 基于四元数误差建模的自适应Cubature Kalman滤波算法
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9133740
Kai Liu, You Zhao, Zhigang Zhu
Initial alignment is the key link before initial device enters navigation function. In the actual use of the marine inertial navigation system, the external environment is complex, the error modeling cannot be simply approached and processed by linear filtering. To solve this problem, the adaptive CKF algorithm based on quaternion error modeling is proposed. The proposed method uses multiple fading factors to redistribute the weight of measurement information, so as to reduce the algorithm error caused by inaccurate noise parameters in the complex environment. Simulation results show that the adaptive CKF algorithm based on quaternion error modeling proposed in this paper can solve the large misalignment angle transfer alignment. Compared with UKF and CKF algorithm, when the system noise covariance changes, the proposed algorithm can effectively improve alignment precision and accuracy.
初始对齐是初始设备进入导航功能之前的关键环节。船舶惯性导航系统在实际使用中,外部环境复杂,误差建模不能简单地用线性滤波方法逼近和处理。针对这一问题,提出了基于四元数误差建模的自适应CKF算法。该方法利用多个衰落因子对测量信息的权重进行重新分配,从而降低了复杂环境下噪声参数不准确导致的算法误差。仿真结果表明,本文提出的基于四元数误差建模的自适应CKF算法可以解决较大的不对准角传递对准问题。与UKF和CKF算法相比,当系统噪声协方差发生变化时,本文算法能有效提高对准精度和精度。
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引用次数: 0
Application of the Maximum Likelihood Method When Combining Information from Primary Meters in a Precision Rotary Test Bench with Inertial Sensors and a Digital Control System to Improve Its Accuracy 应用极大似然法将精密回转试验台一次仪表信息与惯性传感器和数字控制系统相结合以提高其精度
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9133963
D. Kalikhman, A. A. Lvov, E. Krivtsov, E. A. Deputatova, R. Ermakov, A. Yankovsky
The paper examines the operation of a precision rotary test bench with an excessive number of primary meters, some of which are used as inertial sensitive elements in the digital control system of the test bench. Application of the maximum likelihood method for combining the information from the meters, which improves the accuracy characteristics of the rotary test bench, is shown. A method for obtaining the integral estimation of the angular rate of the test bench platform is presented.
分析了某精密回转试验台一次仪表数量过多的运行情况,其中一些仪表在试验台数字控制系统中用作惯性敏感元件。应用最大似然法结合仪表信息,提高了旋转试验台的精度特性。提出了一种获得试验台平台角速度积分估计的方法。
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引用次数: 0
Visual Localization of a Ground Vehicle Using a Monocamera and Geodesic-Bound Road Signs 使用单摄像头和测地线方向道路标志的地面车辆视觉定位
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9133769
R. Bikmaev, A. Polukarov, R. N. Sadekov
The work explores the on-board navigation system of the moving object, which includes a camera, odometer and steering sensor. The navigation algorithm is based on the method of visual odometry compensated by the data of recognized road signs. Recognition of road signs is carried out on the basis of a roll-out neural network. The algorithm is tested on natural data.
这项工作探索了移动物体的车载导航系统,该系统包括一个摄像头、里程表和转向传感器。该导航算法基于视觉里程法,通过识别的道路标志数据进行补偿。道路标志的识别是在铺展神经网络的基础上进行的。该算法在自然数据上进行了测试。
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引用次数: 1
The Implementation of IMU/Stereo Vision Slam System for Mobile Robot 移动机器人IMU/立体视觉冲击系统的实现
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9133980
Hou Juan-Rou, Wang Zhan-qing
In the research of unmanned vehicle technology, the integrated navigation system based on inertial measurement unit and stereo camera has gradually become a research hotspot. The inertial navigation system has the characteristics of higher short-time precision, and does not radiate information to the outside world. The stereo vision navigation system collects image information of the environment, and performs feature extraction and tracking on the feature points in the acquired images to recover the motion of the carrier. In this paper, the stereo vision navigation system is used to correct the long-term error accumulation of the inertial navigation system. On the other hand, the short-time precision of the inertial navigation system can also compensate the vision navigation system caused by the blurred image information caused by the carrier moving too fast. The integrated navigation system of IMU together with stereo vision camera can gain better comprehensive performance. In this paper, Multi-State Fusion Kalman Filter (MSF) and Multi-State Constraint Kalman Filter (MSCKF) are used to fuse the inertial navigation system and vision navigation system. When constructing the MSCKF framework, we use sparse optical flow method to achieve feature tracking, and using triangulation in computer vision to calculate the positions of feature points, and use the data set to verify the accuracy of the two algorithms. Finally, constructing an environmental point cloud map using the estimated state of feature points. Under the environment of i7-8750H cpu, the experimental results show that tight coupling is more accurate than loose coupling.
在无人驾驶技术的研究中,基于惯性测量单元和立体摄像机的组合导航系统逐渐成为研究热点。惯性导航系统具有短时精度高、不向外界辐射信息等特点。立体视觉导航系统采集环境图像信息,对采集到的图像中的特征点进行特征提取和跟踪,恢复载体的运动。本文采用立体视觉导航系统对惯性导航系统长期积累的误差进行校正。另一方面,惯性导航系统的短时精度也可以补偿视觉导航系统因载体运动过快而造成的图像信息模糊。IMU的组合导航系统与立体视觉摄像机相结合,可以获得更好的综合性能。本文采用多状态融合卡尔曼滤波器(MSF)和多状态约束卡尔曼滤波器(MSCKF)对惯性导航系统和视觉导航系统进行融合。在构建MSCKF框架时,我们使用稀疏光流方法实现特征跟踪,并使用计算机视觉中的三角剖分方法计算特征点的位置,并使用数据集验证两种算法的准确性。最后,利用特征点的估计状态构造环境点云图。在i7-8750H cpu环境下,实验结果表明,紧耦合比松耦合更精确。
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引用次数: 7
Flight Test Results of the Six-Axis Unit of Apparent Acceleration Meters Based on a Precision Quartz Pendulum Accelerometer with Digital Feedback as Part of the Soyuz MS-14 Spacecraft 联盟号MS-14飞船基于数字反馈精密石英摆加速度计的六轴视加速度计单元飞行试验结果
Pub Date : 2020-05-01 DOI: 10.23919/icins43215.2020.9133779
L. Kalikhman, Yurij Nikolaenko, R. Samitov, D. Kalikhman, V. Lutchenko, V. E. Kozhevnikov, E. A. Deputatova, S. F. Nakhov, V. Skorobogatov
The report reviews the flight test results of the unit of linear acceleration meters (the BILU device) built on quartz pendulum accelerometers with digital feedback amplifier and pulse-width electric current control of torque sensor of each measuring channel. The unit has passed the flight tests as part of the control system of the Soyuz MS-14 spacecraft. A number of topics is considered, including the results of flight tests themselves, as well as the result of the analysis of the BILU device parameters after the tests, which confirm the stability of the main technical characteristics of the device.
本文综述了以石英摆加速度计为基础,采用数字反馈放大器和各测量通道转矩传感器脉宽电流控制的线性加速度计单元(BILU装置)的飞行试验结果。作为联盟号MS-14飞船控制系统的一部分,该装置已经通过了飞行测试。考虑了许多主题,包括飞行试验本身的结果,以及试验后对BILU装置参数的分析结果,这些结果证实了该装置的主要技术特性的稳定性。
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引用次数: 0
期刊
2020 27th Saint Petersburg International Conference on Integrated Navigation Systems (ICINS)
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