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Wind Vector Inversion of ADS-B data Based on Improved PSO-PF Algorithm

Wind Vector Inversion of ADS-B Data Based on Improved PSO-PF...

引用

International conference on Guidance, Navigation and Control, ICGNC 2022

作者： Chen, Wantong Wu, Duo Ren, Shiyu Diao, Tianru Tianjin Key Laboratory of Intelligent Signal and Image Processing Civil Aviation University of China Tianjin300300 China School of Electronic Information and Automation Civil Aviation University of China Tianjin300300 China

ISBN: (纸本)9789811966125

At present, inversing wind vector from aircraft trajectory captured by automatic dependent surveillance-broadcast (ADS-B) is one of the main solutions to obtain wind field in aviation meteorology. However, some algorithms in this scheme still have some shortcomings, especially the poor performance when the aircraft turns at a small angle. In this paper, the geometric structure of ADS-B data is used to improve particle swarm optimized particle filter algorithm (PSO-PF) to inverse wind vectors in small area of single aircraft data and large area of multi-aircraft data respectively. The mean absolute error of wind estimation under different turning angles is evaluated. Experimental results show that the algorithm is feasible, and it still has a good inversion effect when the aircraft turns at a small angle. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Aircraft

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Research on inertial navigation component measurement and control system 18

Research on inertial navigation component measurement and co...

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18th International conference on Computational Intelligence and Security, CIS 2022

作者： Xu, Yuan Tan, Tao Ma, Chao Macao Polytechnic University Macao China Dongguan City University Guangdong Dongguan China Xi'An Technological University Shaanxi Xi'an China

ISBN: (纸本)9798350346275

To improve the test efficiency of inertial navigation components and meet the measurement requirements of multi-type signal output. This paper proposes a dual-mode inertial navigation data acquisition system based on FPGA and USB. The system is based on FGPA EP4CE10F17 and USB CY7C68013 chips. which can realize seamless counting of 48 channels of pulse signals output by 4 channels of inertial navigation components, and can also collect output data of 8 channels of inertial navigation serial ports. FPGA controls data acquisition, USB realizes high-speed data transmission, measurement, and control computer realizes data processing, storage and display. The system has been tested on site for a long time, which has the characteristics of stable operation, high precision and small size. © 2022 IEEE.

关键词： data acquisition

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Evaluating methods of oversampling and averaging resting-state electroencephalography data in classifying Parkinson's disease

Evaluating methods of oversampling and averaging resting-sta...

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45th Annual International conference of the IEEE-Engineering-in-Medicine-and-Biology-Society (EMBC)

作者： Vlieger, Robin Suominen, Hanna Apthorp, Deborah Lueck, Christian J. Daskalaki, Elena Australian Natl Univ Coll Engn Comp & Cybernet Sch Comp Canberra ACT 2601 Australia Australian Natl Univ Sch Med & Psychol Coll Hlth & Med Canberra ACT 2601 Australia Univ Turku Dept Comp Turku 20500 Finland Univ New England Fac Med & Hlth Sch Psychol Armidale NSW 2350 Australia

ISBN: (纸本)9798350324471

Collecting resting-state electroencephalography (RSEEG) data is time-consuming and data sets are therefore often small. Because many machine learning (ML) algorithms work better with ample data, researchers looking to use RSEEG and ML to develop diagnostic models have used oversampling methods that may seem to contradict averaging methods used in conventional electroencephalography (EEG) research to improve the signal-to-noise ratio. Using eyes open (EO) and eyes closed (EC) recordings from 3 different research groups, we investigated the effect of different averaging and oversampling methods on classification metrics when classifying people with Parkinson's disease (PD) and controls. Both EC and EO recordings were used due to differences found between these methods. Our results indicated that grouping 58 electrodes into regions-of-interest (ROI) based on anatomical location is preferable to using single electrodes. Furthermore, although recording EO data led to slightly better classification, the number of data points for each participant was reduced and recordings for three participants entirely lost during pre-processing due to a higher level of artefacts than in the EC data.

关键词： Electroencephalography

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Geo-location of mines detected via vehicular-mounted forward-looking sensors

Geo-location of mines detected via vehicular-mounted forward...

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conference on Detection and Remediation Technologies for Mines and Minelike targets VI

作者： Cook, G Sherbondy, K Jakkidi, S George Mason Univ Dept Elect & Comp Engn Fairfax VA 22030 USA

ISBN: (纸本)0819440892

This paper is concerned with the problem of target geo-location when using forward-looking vehicular-mounted sensors for landmine detection. Intermediate and downward-looking sensors may also be used, but the geolocation problem is most complex for the forward-looking sensor. A nonlinear state model for the vehicle is developed and a Kalman filter is combined with the available measurements to estimate the vehicle position and attitude. Knowledge of the sensors specifications along with information as to the location and orientation of the sensor on the vehicle combined with knowledge of the vehicle position and attitude make it possible for one to compute the sensor field-of-view or footprint. Given this, one can then analyze sensor frames and for any detected mines, convert their locations from sensor-frame coordinates to ground coordinates. The vehicle model, the Kalman filter equations, the coordinate transformations and other algorithms required for geo-locating any detected mines are presented and implemented in a simulation. Actual data collected at a test site is then used as input to the simulation. The simulation results indicate that for forward-looking sensors mine geo-location can in fact be accomplished. The actual position estimates are shown to have precision (ellipses of 0.9 confidence level) of less than 0.25 meters for the particular data used. Precise geo-location is one of the essential elements for mine neutralization.

关键词： Sensors Mining Land mines Antennas Filtering (signal processing) Target detection Image sensors data modeling Lithium Motion models

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Building trust in online rating systems through signal modeling

Building trust in online rating systems through signal model...

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27th International conference on Distributed Computing Systems Workshops, ICDCSW'07

作者： Yang, Yafei Sun, Yan Lindsay Ren, Jin Yang, Qing Department of Electrical and Computer Engineering University of Rhode Island Kingston RI 02881 United States

ISBN: (纸本)0769528384

Online feedback-based rating systems are gaining popularity. Dealing with unfair ratings in such systems has been recognized as an important but difficult problem. This problem is challenging especially when the number of regular ratings is relatively small and the unfair ratings contribute to a significant portion of the overall ratings. In this paper, we propose a novel algorithm to detect the unfair ratings that cannot be effectively prevented by existing state-of-the-art techniques. Our algorithm is particularly effective to detect malicious raters that collaboratively manipulate ratings of one or several products. The main idea of our algorithm is to use an autoregressive signal modeling technique combined with trust-enhanced rating aggregation. We are able to detect and filter out unfair ratings very accurately. Extensive experiments through simulations and real-world data have been performed to validate the proposed algorithm. The experimental results show significant improvements on detecting collaborative unfair raters over existing techniques. © 2007 IEEE.

关键词： signal processing

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Efficient implementation of fault-tolerant data structures in PC-based control software

Efficient implementation of fault-tolerant data structures i...

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4th International conference on Informatics in Control, Automation and Robotics

作者： Short, Michael Univ Leicester Embedded Syst Lab Leicester Leics England

ISBN: (纸本)9789728865849

Recent years have seen an increased interest in the use of open-architecture, PC-based controllers for robotic and mechatronic systems. Although such systems give increased flexibility and performance at low unit cost, the use of commercial processors and memory devices can be problematic from a safety perspective as they lack many of the built-in integrity testing features that are typical of more specialised equipment. Previous research has shown that the rate of undetected corruptions in industrial PC memory devices is large enough to be of concern in systems where the correct functioning of equipment is vital. In this paper the mechanisms that may lead to such corruptions and the level of risk is examined. A simple, portable and highly effective software library is also presented in this paper that can reduce the impact of such memory errors. The effectiveness of the library is verified in a small example.

关键词： open architecture controllers software fault tolerance critical systems

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Enhancement and modelling of signals from natural piezoelectric targets

Enhancement and modelling of signals from natural piezoelect...

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作者： Butler, Karl Edward University of British Columbia

Electromagnetic signals from piezoelectric targets in the earth can be generated using seismic sources and measured with electric or magnetic field receivers. The signals are typically small compared to the ambient electromagnetic noise and are difficult to identify in unprocessed records. Three data processing algorithms involving stacking, low-pass filtering, and sinusoid subtraction have been developed to enhance the signal-to-noise ratio of piezoelectric data acquired during field experiments. In addition, an analytic modelling technique has been developed to investigate the relationship between seismic and piezoelectric signals. The stacking technique, designed for use with repetitive seismic sources, employs a robust triggering algorithm that enables it to be used effectively even when the trigger signal is poor. High frequency noise is attenuated using a zero phase frequency domain low-pass filter with variable cut-off frequency and slope. The sinusoid subtraction technique is used to remove powerline noise which occurs at frequencies of 60 Hz and its harmonics. The amplitude and phase of each harmonic are estimated by calculating the Fourier series coefficients for that frequency. A sinusoid having the estimated amplitude and phase is then subtracted from the data to remove the harmonic. Remarkable improvements in the signal-to-noise ratio have been achieved by sinusoid subtraction as powerline noise levels typically exceed piezoelectric signal amplitudes by factors ranging from five to a few hundred times. For purposes of analytic modelling, a piezoelectric target is represented by a number of spheres each of which become independently polarized during the passage of a spherical elastic wave. The electric potential at a point in a uniform conductive medium surrounding the target is estimated by summing the potentials due to each of the polarized spheres. It is shown that the form of the electric potential time series generated by a uniformly polarized targe

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Memorized testing and measuring technology

Memorized testing and measuring technology

引用

Proceedings of the 1994 IEEE Instrumentation and Measurement Technology conference

作者： Zu, Jing Shen, Xiangnan Zhang, Wendong North China Inst of Technology Shanxi China

This paper introduces to you a kind of micro-instrumentation composed of the sensor, the condition amplifier, the A/D converter, the memory, the controller, the interface circuit and the cell. It is of small size, capable of working under high impact acceleration and high environmental temperatures. It is of very low power consumption, leadless and can be situated into the body of an object being measured, for example, in the piston of a working engine, on details rotating with high speed, several kilometers deep in an oil-well, in the flighting projectile, on the gearing gear and in the bore core of a firing artillery. Suitable for any situations in which it is difficult to set leads, it records signals needed during the working process of the objects being measured and then is taken out after the process finishes and the data of it can be read and processed by a computer. This article means to reveal the configuration principle of the device and to discuss fundamentals of memorized testing and measuring, accuracy guarantee, ASIC and some typical examples.

关键词： Digital signal processing

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Target Location in Distributed MIMO radar based on Coherent processing

Target Location in Distributed MIMO radar based on Coherent ...

引用

signal, Information and data processing (ICSIDP), IEEE International conference on

作者： Fa Wei Shi Yan Shengqi Zhu Lan Lan Ximin Li Jiawei Qi Runlong Ma National Key Laboratory of Radar Signal Processing Xidian University Xi’an China Beijing Institute of Remote Sensing Device Beijing China

ISBN: (数字)9798331515669

ISBN: (纸本)9798331515676

In this paper, the problem of target location is investigated in the distributed multiple-input multiple-output (MIMO) radar based on coherent processing. At the modelling stage, the distributed MIMO radar is divided into three separated subarrays, where both transmit and receive functions are used in subarrays 1 and 3, while only receive function is adopted in subarray 2. Furthermore, a small frequency increment is introduced among different antenna elements in the subarray 1, in the meantime, a phase modulating operation is performed for various antenna elements in the subarray 3. In this respect, the target location performance can be improved significantly by means of the transmit modulation in subarrays 1 and 3. Under the circumstances, the model of target location is established, and a two-step estimation technology is shown, where a small location sector with respect to targets are firstly obtained, and the accurate location are further estimated. Specifically, in order to reduce the computational cost required by the multi-dimensional search procedures, an alternating procedure is developed by a sequence of 1-D searches obtained alternating between the optimization over each variable keeping the other fixed. Numerical results corroborate the effectiveness of the developed methods for the target location with distributed MIMO radar based on coherent processing.

关键词： Frequency modulation Phase modulation MIMO radar Estimation Search problems data processing Encoding Optimization Antennas MIMO communication

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New coherent doppler lidar engine integrating optical transceiver with FPGA signal processor 18

New coherent doppler lidar engine integrating optical transc...

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18th Coherent Laser Radar conference and the Lidar Working Group on Space Based Winds, CLRC 2016

作者： Ando, Toshiyuki Haraguchi, Eisuke Ono, Hitomi Mitsubishi Electric Corporation Information Technology R and D Center 5-1-1 Ofuna Kamakura Kanagawa247-8501 Japan

A new coherent Doppler lidar engine has been developed for wind sensing. This new sub-system is consist of a compact optical transceiver board stacking on a FPGA based signal processor board which has small foot print of 26 × 10cm. In the optical transceiver board a pulsed serrodyning transmitter combined with a heterodyning receiver using commercial off the shelf components of the digital coherent optical communication. In the signal processor board, a system on chip embedded processors and a FPGA is used for not only controlling the optical transceiver but also executing lidar data processing without any external host computer, leading to realization of an ultra-compact wind sensing system. Preliminary experiments of line of sight wind velocities with this new lidar sub-system also presented for demonstration.

关键词： Field programmable gate arrays (FPGA)

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