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An Improved Calibration Method for Photonic Mixer Device Solid-State Array Lidars Based on Electrical Analog Delay

Xuanquan Wang, Ping Song, Wuyang Zhang
2020 Sensors  
The method firstly eliminates the lens distortion using a self-adaptive interpolation algorithm, meanwhile it calibrates the grayscale image using an integral time simulating based method.  ...  Through several experiments, the proposed method is more adaptive to multiscenes with targets of different reflectivities, which significantly improves the ranging accuracy and adaptability of PMD Lidar  ...  The lens distortion was corrected using a self-adaptive interpolation algorithm based on Zhang's [49] calibration method.  ... 
doi:10.3390/s20247329 pmid:33419326 pmcid:PMC7766223 fatcat:azhciebq2zh2rddq7qpl6uiukq

Table of contents

2020 IEEE Sensors Journal  
De Micheli 3636 Electronic Interpolation Interface Based on Linear Subdivision Method for Sinusoidal Optical Encoders ....... ................................................................ G.  ...  Kumar 3529 Optimization of Adaptive Lighting Technology Based on Varying-Frequency Sinusoidal Grating Projection .... .................................................................. C. Lyu, Z.  ... 
doi:10.1109/jsen.2020.2974351 fatcat:fwfevt7u5fdy5mahtii4rj4xcq

Real-Time Algorithm for Versatile Displacement Sensors Based on Self-Mixing Interferometry

Antonio Luna Arriaga, Francis Bony, Thierry Bosch
2016 IEEE Sensors Journal  
The approach relies on a robust phase observation through analytic signals for the fringe detection stage, while the motion of the pointed target is retrieved by a self-adapting filter in a piece-wise  ...  Real-time algorithm for versatile displacement sensors based on self-mixing interferometry.  ...  Recently, a real-time calculation method of C combined with an autofocus via an adaptive liquid lens demonstrated the feasibility of autonomous SM displacement sensors by preventing the signal to quit  ... 
doi:10.1109/jsen.2015.2478755 fatcat:2kf5nlz5ufb4roy6ktp3oowoye

The Front-End Readout as an Encoder IC for Magneto-Resistive Linear Scale Sensors

Trong-Hieu Tran, Paul Chao, Ping-Chieh Chien
2016 Sensors  
A digital decoder is orchestrated to decipher the harmonic outputs from the ADC via interpolation to the position of the moving stage.  ...  This study proposes a front-end readout circuit as an encoder chip for magneto-resistance (MR) linear scales.  ...  Table 1 . 1 Performance comparison with other interpolation methods. [5] [28] [29] This Work Technology N/A 0.35-µm CMOS 0.5-µm CMOS 2P2M 0.35-µm CMOS 2P4M Interpolation Method Advanced Adaptive  ... 
doi:10.3390/s16091416 pmid:27598165 pmcid:PMC5038694 fatcat:l54l3j4ybfhmvooqqw3rl5z3ga

Real time displacement sensor based on self-mixing interferometry

Antonio Luna Arriaga, Francis Bony, Thierry Bosch
2012 2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings  
By implementing a first-order-hold interpolation used in digital-to-analog converters, the signal recovery problem has been reduced to the efficient usage of an adaptive filter with high potential of parallelism  ...  This paper deals with the real time reconstruction of a self-mixing displacement signal under devices with limited resources.  ...  This aims to be able to properly model such systems by analyzing and adapting the different treatments from literature so an optimal sensor for a given application could be synthesized.  ... 
doi:10.1109/i2mtc.2012.6229273 fatcat:slagbytjsrciliaibazilv3s7u

Robust Controller Design Using the Nevanlinna-Pick Interpolation in Gyro Stabilized Pod

Bin Liu, Chang-Hong Wang, Wei Li, Zhuo Li
2010 Discrete Dynamics in Nature and Society  
Numerical examples illustrate the potential of the method in designing robust controllers with relatively low degrees.  ...  Gyro stabilized pod as a typical tracking system is studied, which is based on the typical structure of two-axis and four-frame.  ...  Nagamune firstly gave the computation method for NP interpolation with degree constraint 19 .  ... 
doi:10.1155/2010/569850 fatcat:2agzem47wzevho2tjwkgsiqdke

Self-Similar Decomposition of Digital Signals

Kiril M. Alexiev, Teodor G. Toshkov, Dimiter P. Prodanov
2020 Cybernetics and Information Technologies  
In the present paper, a new self-similar decomposition of digital signals is proposed.  ...  The method is also suitable for description of highly repetitive continuous and digital signals.  ...  The approach is adaptive and does not work with pre-selected basic functions for signal description such as sinusoids, wavelets, etc.  ... 
doi:10.2478/cait-2020-0038 fatcat:jww2qt66efdajge3zhex7nunk4

Benchmarking Super-Resolution Algorithms on Real Data [article]

Thomas Köhler, Michel Bätz, Farzad Naderi, André Kaup, Andreas K. Maier, Christian Riess
2017 arXiv   pre-print
Despite the great number of methodical contributions, there is still a lack of comparative validations of SR under practical conditions, as capturing real ground truth data is a challenging task.  ...  Therefore, current studies are either evaluated 1) on simulated data or 2) on real data without a pixel-wise ground truth.  ...  As an internal method, we studied transformed self-exemplars (SESR) [18] . Furthermore, we use the hybrid approach (HYSR) proposed in [5] that adaptively combines EBSR with NUISR.  ... 
arXiv:1709.04881v1 fatcat:6le6k2bddfafxkqtgyj2bswbva

Novel EMD-Based Extraction Approach of Electric Field Fringe Impacts on a Micro Capacitive Displacement Sensor

Jian-Ping Yu, Hui-Lin Du, Xin Li
2018 Micromachines  
A calculated capacitance model built under Maxwell's equations against the impacts of electric field fringe component indicates that signals of this sensor are all in periodic co-sinusoidal waveforms.  ...  Nonlinearity of the interpreted displacement was decreased from 1.54% to 0.29% for 8 mm stroke.  ...  Benedek and Silverter presented a new method for the calculation of self and mutual capacitances of flat conductor sections [12] .  ... 
doi:10.3390/mi9050211 pmid:30424144 pmcid:PMC6187548 fatcat:p4bs5v3tzzczjhdecgbhplk2re

A novel walking speed estimation scheme and its application to treadmill control for gait rehabilitation

Jungwon Yoon, Hyung-Soon Park, Diane Damiano
2012 Journal of NeuroEngineering and Rehabilitation  
For this purpose, we developed an individualized treadmill controller with a novel speed estimation scheme using swing foot velocity, which can enable user-driven treadmill walking (UDW) to more closely  ...  Conclusions: Our treadmill control scheme implements similar gait biomechanics of TDW, which has been used for repetitive gait training in a small and constrained space as well as controlled and safe environments  ...  Figure 3 Figure 4 34 Speed adaptation controlSpeed adaptation control scheme based on swing foot motions Self-selected speed control is constructed by combining the proposed speed estimation method as  ... 
doi:10.1186/1743-0003-9-62 pmid:22929169 pmcid:PMC3546912 fatcat:e2ld6clflbcylippsdta5blrwq

Mechatronics and Embedded System 2014

Yong Tao, Jindong Tan, Zili Shao, Hongxing Wei
2014 Advances in Mechanical Engineering  
Acknowledgments We would like to take this opportunity to thank the authors for their contributions to this special issue and the thoughtful reviewers. Yong Tao Jindong Tan Zili Shao Hongxing Wei  ...  In the paper titled "FPGA Implementation of Self-Organized Spiking Neural Network Controller for Mobile Robots, " a novel mechanism for controlling mobile robots is presented based on self-organized spiking  ...  In the paper titled "Research on The DDA Precision Interpolation Algorithm for Continuity of Speed and Acceleration, " a new precision interpolation algorithm is presented based on the analysis of root  ... 
doi:10.1155/2014/893568 fatcat:6zmdhdrcbzcb5p4qyawwu3inny

Table of Contents

2018 IEEE transactions on industrial electronics (1982. Print)  
Singh, and A. L. Vyas 6592 6239 Sinusoidal Current Operation of a DFIG-DC System Without Stator Voltage Sensors . . . . . C. Wu and H.  ...  Control and Signal Processing A Multifrequency Disturbances Identification and Suppression Method for the Self-Sensing AMB Rotor System. , and Q.  ... 
doi:10.1109/tie.2018.2815382 fatcat:megraunglfgepjnu6fcijkthtm

Spatially Resolved Fast-Time Vibrometry Using Ultrawideband FMCW Radar Systems

Lukas Piotrowsky, Nils Pohl
2020 IEEE transactions on microwave theory and techniques  
This article introduces a signal processing chain for ultrawideband frequency-modulated continuous-wave (FMCW) radar.  ...  In order to accomplish this, a sophisticated error model and a calibration scheme were derived.  ...  Mayr for their valuable comments and suggestions.  ... 
doi:10.1109/tmtt.2020.3038080 fatcat:sx56dg4ta5auphq5ao4jt4nm6m

Adaptive Kalman Filter Based on Adjustable Sampling Interval in Burst Detection for Water Distribution System

Doo Choi, Seong-Won Kim, Min-Ah Choi, Zong Geem
2016 Water  
This paper analyzes the effect of sampling interval when an adaptive Kalman filter is used for detecting bursts in a WDS.  ...  The proposed sampling method has a significant potential for water utilities to build and operate real-time DMA monitoring systems combined with smart customer metering systems.  ...  Detailed procedure and numerical algorithm for detecting leaks and bursts were established by Doo Yong Choi and Seong-Won Kim. Min-Ah Choi collected field data and organized simulation results.  ... 
doi:10.3390/w8040142 fatcat:eywoe5dbqbaiba3zbvrjkl3nta

New multi-rod linear actuator for direct-drive, wide mechanical bandpass applications

P.-E. Cavarec, H.B. Ahmed, B. Multon
2003 IEEE transactions on industry applications  
In this paper, a new multi-rod linear actuator is presented. This actuator has been developed for high thrust density and wide mechanical bandpass applications.  ...  Its advantages will be highlighted thanks to finite-element method optimizations. Next, the multi-rod prototype technology will be discussed.  ...  An adapted linear load is required to carry out self-commutation. We have chosen a passive inertial load, as shown in Fig. 28 .  ... 
doi:10.1109/tia.2003.813705 fatcat:wv3zkml5frhjjmmwwrwswazfzm
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