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Aron Sommer - Backprojection Autofocus of Large Ships with Arbitrary Motion for Synthetic Aperture Radar

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Aron Sommer

Backprojection Autofocus of Large Ships with Arbitrary Motion for Synthetic Aperture Radar

Reihe: Informatik/ Kommunikation

Band 867 2020

Treffer in den folgenden Teilen:

Basics of Backprojection Image Reconstruction S. 13-39

„… given in Sec. 2.5. Since all proposed algorithms are evaluated in this thesis using real experimental …” „… description of the real airborne SAR system SmartRadar [Kir+16] is given in Sec. 2.6. 2.1 fundamentals of …” „… after a short period of time. The sum of all measured echos is called received data. The range …”

Conclusions S. 112-116

„… estimates time- and location-depending range errors by maximizing subimage sharpness to focus SAR images of …” „… our analysis in a parameter choice rule and evaluated it using a real data airborne X-band example …” „… military application in maritime surveillance since it enables a fast reaction time in order to monitor …”

Introduction S. 1-12

„… radar images in real-time on special-purpose hardware [Pfi+13]. However, all frequencydomain algorithms …” „… processed in real-time for a standard 16 k by 16 k image. Such a reconstruction could take hours using a …” „… period of time. The distance between the antenna and the airplane can be calculated from the time …”

Autofocus of Large Ships with Arbitrary Motion S. 75-111

„… necessary for the context of all real-time maritime surveillance applications. The most interesting …” „… quality degradations are caused by the unknown arbitrary motions of ships during the long observation time …” „… is only true, either if the observation time is short, which results in a coarse azimuth resolution …”

Optimization of Fast Factorized Backprojection S. 40-74

„… overlapping range profiles for each subimage as described in Sec. 3.5. In order to reach real-time capability …” „… backprojection (GBP) algorithm [Faw85; And88; GM10] is the most common time-domain SAR image reconstruction …” „… increase as well. In order to reduce the run-time significantly and simultaneously preserve image accuracy …”

Bibliography S. 119-128

„… . 545–548. [Pfi+13] M. Pfitzner, F. Cholewa, P. Pirsch, and H. Blume. “FPGA based architecture for real-time …” „… , and H. Hellsten. “Real-time SAR Processing of low Frequency ultra wide band Radar Data.” In: 2nd …” „… realer und synthetischer Apertur. 1st ed. De Gruyter Oldenbourg, 1999. [LDC14] C. Livingstone, M …”

A Appendix S. 117-118

„… ), (A.3) where M is the number of slow-time samples and b̂j the jth backprojected range profile in …” „… conjugation, Re(·) gets the real value and Im(·) gets the imaginary component. Thus, Eq. (A.1) can finally be …”

doi.org/10.51202/9783186867100

VDI Wissensforum GmbH - Dritev – Drivetrain for Vehicles 2020

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VDI Wissensforum GmbH (Hrsg.)

Dritev – Drivetrain for Vehicles 2020

Reihe: VDI-Berichte

Band 2373 2020

Treffer in den folgenden Teilen:

M. Grill, M.-T. Keskin, M. Bargende Virtual RDE: Ensuring RDE conformity of hybridized powertrains in the early stage of the development process

„… conditions: computational times (real time factor 50…200, [4]), although rather low compared to 3D-CFD …” „… considerable reduction in simulation time can be reached in this way, coming close to real time capability …” „… depending on the level of simplification (a factor of two compared to real time can be considered as a …”

A. Esser, T. Eichenlaub, S. Rinderknecht Real-driving-based comparison of the eco-impact of powertrain concepts using a data-driven optimization environment

„… Real-Driving-Based Comparison of the Eco-Impact of Powertrain Concepts using a Data-Driven …” „… driving cycles, allowing for an efficient search of the real-driving-optimal powertrain parametrizations …” „… evaluation. As pointed out in various studies, the consideration of real-driving profiles resulting from the …”

D. Vietze, M. Hein, K. Stahl Method for a cloud based remaining-service-life-prediction for vehicle-gearboxes based on big-data-analysis and machine learning

„… (2016) 3, S. 74–79 [10] Foulard, S., Rinderknecht, S., Ichchou, M. u. Perret-Liaudet, J.: Real-time and …” „… . 2013 [11] Foulard, S., Rinderknecht, S., Perret-Liaudet, J. u. Ichchou, M.: Online and real-time …” „… .: Online and real-time load monitoring for remaining service life prediction of automotive transmissions …”

T. Korb, M. Nussbaumer, S. Rinderknecht Generic optimization environment and knowledge-based guided evolutionary algorithms for automated transmission calibration – Method to generate a knowledge base through impact analysis of parameters a...

„… computation time. An approach presented in this paper proposes a different procedure. It uses all the …” „… information within the time-based signals and not only scalars to extract information about the functional …” „… algorithm to guide the optimization and improve convergence, thus potentially saving simulation time. 1 …”

D. Schöneberger, S. Rinderknecht, D. Reitmeier, A. Mertens Development of a transmission control for an innovative high-speed powertrain using motor-related control – Simulative approach to develop an angular position controlled engagement of dog clutches in ...

„… addition, it is recommended to locate the control close to the motor to avoid dead times for example from …” „… actuator/motor-related to avoid additional dead times e.g. through CAN cycle times. None the less the transmission …” „… system Because of its complexity, the OS-Algorithm cannot be computed with high frequency in real …”

P. Ramminger, R. Jäger Evolution of the drivetrain and high voltage system in the new Corsa-e

„… prerequisites, powered by capability to invest financially for the change, lead time to implement new …” „… electricity production from renewables (as e.g. observed at same time in Western part of Norway with 34 g CO2 …” „… finally generated a broad knowledge about how these vehicles are used in a “real world” environment …”

D. Evenschor, P. Tenberge, M. Wolkerstorfer Package-optimized configuration of transmission elements for automated design concepts – Design concept generation based on results of transmission synthesis

„… time. A single specification of gear element ratios, transmission element load, and an available …” „… torque load and an assumed operation time. The overall operation time of the transmission in every gear …” „… ∨ ⋯∨ , (1) where , , … , , are real numbers such that the possible intervals for the difference are …”

A. Manelli, F. Filippo Irato, C. Cavallino, R. Gay e-FDU: Concept, develop & industrialization of a novel P4 powertrain – From concept to industrialization of a novel P4 powertrain in 24 month

„… electrical signal is directly feed in to the integrated PCB, allowing a real time control of the mechanical …” „… , allowing at the same time to have a full electric drive, improvement of traction capabilities and vehicle …” „… emission, at the same time allows an improvement of fuel consumption and driving pleasure. Dana Graziano …”

B. Pohle, M. Clauß, J. R. Schwarz, E. Schwiederik, D. Lasuen Design optimization of battery systems by multiphysics simulation

„… discharge times and constant discharge current for the whole time. The simulation is carried out with the …” „… simulation is the optimization of the charge profile for a minimum charge time and minimum impact on cell …” „… . The test starts at SOC of 50 % and room temperature. The discharge time is up to 2600 s and stops at …”

S. de Vries Automotive industry in Europe: delivering on the Green Deal

„… real contribution to the Green Deal and mitigating the climate emergency. But due to COVID-19, strong …” „… the impact on the economy and maintains focus on the overarching objectives of our time: the digital …”

K. Sabzewari, M. Vieracker, J. Sagstetter Cost efficient PHEV powertrain solution based on dedicated hybrid transmission – Cost efficiency for small and mid-size plug in hybrid vehicle

„… 680,0 680,5 681,0 681,5 682,0 682,5 683,0 683,5 684,0 684,5 685,0 time [s] to rq ue a t w he el [N m …” „… 30 40 time s 680,8 682,7 minimum wheel torque Nm -88,4 -424,9 accelerator % 0,0 0,0 …” „… between measured and driver torque request is due to time delay between chassis dyno control loop. This …”

S. Reuter, H. De Keyser, M. Doppelbauer Performance study of a PMSM with molded stator and composite housing With internal slot cooling – resulting in high continuous power

„… temperature. This to allow a smooth flow of the composite material and to reduce the cycle time. Preheating …” „… with an auxiliary ram (piston) that is tightly controlled in pressure, speed, course and time. This …” „… relax over time. The bearing seat is connected to the centering surface with a massive ring of material …”

S. Worrall, J. Foulsham, I. Stone, T. Gassmann CeDrive – Electric drive technology for a new era – Advanced cooling and control of high-speed eDrive

„… design of high-speed motors is to manage stress and flux at the same time. Bigger ribs reduce the stress …” „… rotor through a real -world drive cycle reflecting 240.000 km. As a result of the advanced optimisation …” „… (SVPWM) – time-based switching - Selective Harmonic Elimination Modulation (SHEPWM) – angle-based …”

M. Deiml High speed electric drive system – A solution for the next generation E-cars

„… customer acceptance. Established EVs like Tesla compete against combustion engine cars, as a real …” „… additional airgap tube and at the same time significantly reduces the airgap width, the cogging torque and …” „… reached for short time with boosted current. Thanks to the applied measures to reduce the high-frequency …”

H. Gürbüz, S. Ott, A. Sutschet, J. Kern Highly efficient clutch system for multispeed BEV

„… and Audi e-tron represent a real alternative to vehicles with combustion engines and are enjoying …” „… is extended. This is repeated five times before the speed is increased by 1.000 rpm. The same test …” „… times. Furthermore temperature in the sliding contact is constantly measured through temperature holes …”

doi.org/10.51202/9783181023730

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VDI Wissensforum GmbH (Hrsg.)

Automation 2017

Reihe: VDI-Berichte

Band 2293 2017

Treffer in den folgenden Teilen:

C. Scheifele, O. Riedel, A. Verl Virtuelle Inbetriebnahme komplexer Produktionsanlagen mittels echtzeitfähiger Co-Simulation – Co-Simulation unter Einbindung industrieller Steuerungssysteme S. 45-46

„… , the online cal-culation of the production plant‘s system behaviour (real-time simulation) plays a key …” „… complex behaviour models of virtual production plants in real-time through a co-simulation involving real …” „… die Virtuelle Inbetriebnahme (VIBN), wird das reale Steuerungssystem über die reale …”

S. Willmann, A. Gnad, L. Rauchhaupt Unified Assessment of Dependability of Industrial Communication S. 129-130

„… repre-sentation and real asset raises the importance and the amount of communication in industrial automation …” „… . New candidates for industrial communication systems are a group of standards targeting Time Sensitive …” „… failure, for a given time interval, under given conditions". This definition seems to be similar to the …”

S. Spies, K. Lenkenhoff, B. Kuhlenkötter Cyber-Physisches System zur Handhabung sensibler Objekte unter Berücksichtigung der Objekteigenschaften und dessen Verhalten S. 153-154

„… real-time controlled handling of sensitive gripping objects. Since the grasping module and the manipulator …”

S. Jerlitschka, N. Bullinger, M. Maurmaier Modulübergreifende Regelkreise mit I-Device – Ergebnisse einer Studie zur Modulintegration auf Basis der PROFINETA. Stutz, Funktionalität I-Device S. 71-72

„… module-spanning control loops. In this paper, we present use cases for module spanning control loops within a real …” „… , verfahrenstechnische Anlagen die in vielen Brachen so wichtige Time To Market reduzieren und die Anpassungsfähigkeit an …”

Titelei/Inhaltsverzeichnis

„… , MindenDipl.-Ing. Tim Henrichs, Head of IA Business Development, Yokogawa Deutschland GmbH, RatingenProf. Dr.-Ing …” „… . Hennecke, Time-Sensitive Networking (TSN) in modularen Industrie 9 S. Weyer 4.0 AnlagenS. Nsaibi …” „… Modellen mit realen Fertigungs- 29 W. Schlögl, zellen auf Basis einer Ankerpunktmethode am Beispiel der M …”

doi.org/10.51202/9783181022931

VDI Wissensforum GmbH - Technische Zuverlässigkeit 2017

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VDI Wissensforum GmbH (Hrsg.)

Technische Zuverlässigkeit 2017

Reihe: VDI-Berichte

Band 2307 2017

Treffer in den folgenden Teilen:

S. Kemmler, M. Dazer, T. Lepold, B. Bertsche Lebensdaueranalyse auf Basis von multidimensionaler Zuverlässigkeits- und Robust Design Simulation – Integrale Betrachtung der Robusten Zuverlässigkeit S. 97-108

„… Vorteil. Diese werden im Allgemeinen durch reale Versuche mit einem hohen Grad an zeitlichem und …” „… of degradation models. These models are generally determine with real tests, which are associated …” „… with a high degree of time and cost effort. For a more efficient determination of these models …”

P. Dobry, A. Jacobi, B. Bertsche Anwendung von ausgewählten multivariaten Analysemethoden des Data Mining zur Identifizierung von ausfallverbundenen Fahrverhaltensmustern auf Basis von Kundenbelastungskollektiven S. 139-150

„… driving behavior. To understand and interpret this behavior, OEMs and suppliers use time- and location …” „… Kundensegmentzuordnung auf Basis bekannter realer Belastungsprofile aus dem Feld. Je nach Nutzung kann mithilfe …”

doi.org/10.51202/9783181023075

Felix Konstantin Kuhnke - Unsupervised Domain Adaption for Real-World Head Pose Estimation from Synthetic Data

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Felix Konstantin Kuhnke

Unsupervised Domain Adaption for Real-World Head Pose Estimation from Synthetic Data

Reihe: Informatik/ Kommunikation

Band 883 2023

Treffer in den folgenden Teilen:

Titelei/Inhaltsverzeichnis

„… Fortschritt-Berichte VDIFelix Konstantin Kuhnke, M. Sc.,HannoverUnsupervised Domain Adaptation for Real-World Head …” „… Real-WorldHead Pose Estimation from Synthetic DataVon der Fakultät für Elektrotechnik und Informatikder Gottfried …” „… Adaptation for Real-World Head Pose Estimation from Synthetic DataReihe 10Informatik/KommunikationBlackL …”

Introduction S. 1-10

„… high qual-ity labels. Some data generators are even real-time simulators that can beused for driving …” „… ethnicity. This results in a time-consuming,error-prone, and expensive process. It becomes even more …” „… synthetic data (source data) tend toperform poorly on real-world data (target data) compared to …”

Publications of felix konstantin kuhnke S. 129-136

„… . “Self-SupervisedDomain Adaptation for Patient-Specific, Real-Time Tissue Track-ing.” In: Medical Image Computing and …” „… Features for Facial Expression Intensity Estimationover Time.” In: Computer Vision and Pattern Recognition …” „… Kuhnke, M. Sc.,HannoverUnsupervised Domain Adaptation for Real-World Head Pose Estimation from …”

Partial adversarial domain adaptation for continuous label spaces S. 31-44

„… synthetic-to-real head pose estimation. In doing so, we presentour method for partial adversarial domain adaptation …” „… times.the general goal of PADA and any PDA method is to reduce the negativeinfluence of source outliers …” „… synthesized and the real samples. Instead of classifying latentfeature representations, the discriminator …”

Bibliography S. 111-128

„… . Theobalt. “GANerated Hands for Real-Time 3DHand Tracking From Monocular RGB.” In: 2018 IEEE Conferenceon …” „… , J. Gall, A. Fossati, and L. Van Gool. “Ran-dom Forests for Real Time 3D Face Analysis.” In: Int …” „… , Real-Time Tissue Track-ing.” In: Medical Image Computing and Computer Assisted Intervention- MICCAI 2020 …”

Domain adaptation using relative pose consistency S. 45-60

„… . Our goal is still to improvethe performance on real-world data using only labels from synthetic datain …” „… combination with unlabeled real-world data. Semi-supervised learningis typically used to learn from a large …” „… from pose-altering augmentations on our real-world unlabeledtarget data. The relative pose, which we …”

Fundamentals S. 11-30

„… a-dimensionaltensor and applying the function to this input will yield a typically lowerdimensional real-valued output …” „… label can be arbitrarytensors of same shape. If they are real scalar values the MSE is given byLMSE =1 …” „… numerical stability[52]. At test time (inference and evaluation), the mean and variance canbe replaced by …”

Evaluation S. 61-98

„… ms on a consumer GPU (NVIDIA GTX 1080 TI). Therefore, our methodsare suitable for real-time …” „… +, Biwi+Our experiments require a synthetic source dataset and a real-worldtarget dataset. For validating our …” „… representation. Third, to evaluate only the domain differencesbetween synthetic and real-world images, we must …”

doi.org/10.51202/9783186883100

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