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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:

Optimization of Fast Factorized Backprojection S. 40-74

„… of three is used in all stages. Only the number of stages remains adjustable in his rule. We discuss …” „… in this chapter both rules, which still do not find the optimum. Additionally, both rules do only …” „… factorization parameters of the FBP algorithm in detail in order to propose an optimized parameter choice rule …”

Titelei/Inhaltsverzeichnis

„… Rule . . . . . . . . . . . . . . . 57 3.7 Experimental Results and Evaluation …” „… any loss of quality, the factorization parameters must be set near-optimally. In this thesis, a rule …” „… state-of-the-art rules. In the second step, the resulting maximum image error is estimated from the exact range …”

Introduction S. 1-12

„… additionally presented a rule to estimate the number of subimages in the first stage, which in general has to …” „… . He also presented a rule of how many stages are near-optimal. However, he considered the image …” „… aim to find a parameter choice rule for the factorization parameters of the FBP, which lead to …”

Conclusions S. 112-116

„… pulse-by-pulse image sharpness maximization. In detail, we developed a parameter choice rule, which takes the …” „… our analysis in a parameter choice rule and evaluated it using a real data airborne X-band example …”

Basics of Backprojection Image Reconstruction S. 13-39

„… scatterers. The azimuth resolution is specified by the following rule: the larger the processed angular …”

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

„… can be explained by the following wellknown rule: since a radar sensor measures basically the radial …”

doi.org/10.51202/9783186867100

VDI Wissensforum GmbH - International Conference on Gears 2022

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VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2022

Reihe: VDI-Berichte

Band 2389 2022

Treffer in den folgenden Teilen:

B. H. Kien, D. Iba, Y. Tsutsui, Y. Lei, D. Taga, N. Miura, T. Iizuka, A. Masuda, I. Moriwaki Plastic gear remaining useful life prediction using artificial neural network S. 951-956

„… prognostic system are health indicator (HI) and remaining useful life (RUL). The HI reflects the health or …” „… and is capable to predict RUL in percentage during the whole working time of plastic gear. 1 …” „… monitor the situation of plastic gear and capable to estimate the RUL of plastic gear during working time …”

K. Lubke, M. Stein, S. Lin Validation of evaluation algorithms for cylindrical involute gears on coordinate measuring machines – new challenges according to standardization S. 1529-1538

„… . The evaluation rules are defined in the current standards and guidelines. VDI/VDE 2612-1: 2018 [3 …” „… ] provides a variety of evaluation rules and options, including specifications and recommendations. However …” „… and profile crowning, no evaluation rules are defined in the current standards at all [7,3]. Some …”

U. Kissling Generation of a torque spectrum from measured torque-speed-time data S. 533-544

„… the service life of a gear can then be calculated according to the rules as described in ISO6336-6 [1 …” „… precise rule is given for the alternating bending factor ??. The equation for ?? is …” „… ratings can be executed with load spectra (duty cycles) – based on Miners rule – as explained in ISO …”

K. Lubke, H. Rohr Quality inspection of common step gearings – Overview of different types and their assessment S. 959-968

„… . 142-148 [4] VDI/VDE 2143-1,1980. Motion rules for cam mechanisms – Theoretical fundamentals [5] VDI/VDE …” „… 2143-2,1987. Motion rules for cam mechanisms – Practical application [6] Röhr, H.: Qualitätssicherung von …”

X. Zheng, Y. Hu FE analysis and predication on the traveling wave – resonance of aero-gears S. 915-926

„… can be readily captured. The basic rule is to find the intersections between the curve of ? ? and …” „… gear, since the basic rule starts from the traveling wave theory of disks. For gears with transverse …”

F. Eigner, S. Heinrich, M. Berger An approach on contact analysis for micro geometry optimization of the gear unit HypoGear S. 943-950

„… designs out of the rule. Furthermore, the load less contact analysis is only an auxiliary tool and does …”

R. Longato, M. Turci The effect of temperature on the SN curve for bending stress measured on a new test rig for plastic gears S. 1209-1222

„… presents some problems. Gear designers are used to the rules of steel, both as regards manufacturing …”

B. James Developing a digital thread linking gear design to manufacturing simulation and metrology S. 185-196

„… rules such as a minimum requirement for „Form diameter to Start of Active profile clearance“ are useful …”

Y. Marchesse, M. Ruzek, F. Ville, P. Velex On windage power loss reduction achieved by flanges S. 665-676

„… a rule of thumb gives 100 m/s as a critical value. Methods of WPL reduction have been investigated …”

A. Alnahlaui, P. Tenberge Improved method for the determination of tooth root endurance strength S. 31-44

„… Nr. 2389, 2022 37 hypothesis according to modified form of the Miner’s rule [2] is more often used in …”

A. Hessler, B. Neubauer NVH-performance versus Costs – Coherent R&D for gears, system and manufacturing S. 103-118

„… follow the rules of described interactions between first order deviations of datum items and second order …”

A. Eric, D. Olveda, T. Froschmeier, V. Schulze Local pitting fatigue concept with EHL simulation for case hardened gears in electrical drives S. 133-144

„… simple approach, the elementary Palmgren-Miner rule is used and fatigue is predicted when the damage …”

K. Fukanoki, K. Matsuo, Y. Suzuki, K. Fujiki Practical application of asymmetric tooth root geometry for downsizing automotive transmission gears S. 197-214

„… breakage. By applying the modified Miner’s rule, the target number of load cycles is defined based on the …”

R. Jaeger, C. Koplin, B. Schluter Lubricated polymer-steel-systems: influence of the surface and interfacial energies of frictional partners on their tribological performance S. 1223-1236

„… general trends, but we also observed “exceptions from the rule” which might be caused by these …”

J. Theling, M. Willecke, J. Brimmers, C. Brecher Influences on the Excitation Behavior of Lightweight Planetary Gearboxes S. 421-432

„… thick-walled ring gear, deviations from this rule can be found for six planets in the 3rd OG and 4th OG range …”

P. Barreiro, S. Pfrimmer, G. Armutcu, J. Hermes Quality improvement of an aluminum gearbox housing by implementing additive manufacturing S. 1429-1446

„… number of studies dedicated to developing the design rules for cooling channels is very limited. Even so …”

J. Gotz, F. Siglmuller, M. Furst, M. Otto, K. Stahl Experimental investigation of the dynamic load sharing of planetary gearboxes S. 409-420

„… of gear rating for marine transmissions, DNV GL, 2015. [8] Rules and Guidelines Industrial Services …”

J. Hochrein, M. Trubswetter, M. Otto, K. Stahl Direct flank geometry calculation for face gears S. 1447-1460

„… Eindhoven (1988). [19] Peng, X.; Niu, Q.; Guo, W.; Fang, Z.: A New Method of Motion Rule Synthesis for Face …”

F. Lagier, A. Bischofberger, K. Bause, S. Ott Suitability of additive manufactured PEEK gears as a means of gear sampling for automotive high-speed gearboxes S. 1045-1060

„… of the manufacturing process and rule out the mechanical durability of PEEK as a limiting factor for …”

M. Furst, J. Gotz, M. Otto, K. Stahl Automation of gearbox design S. 787-802

„… rules of machine design and is implemented in GAP. 2. Method This section shows the developed models …”

I. Hong, Z. Teaford, A. Kahraman A comparison of gear tooth bending fatigue lives from single tooth bending and rotating gear tests S. 45-74

„… Goodman approach was then be used to determine the effect where for tensile mean stresses 11Ra m Rult …”

M. Weigand, C. Gachot Improved rotorcraft drivetrain safety and related research with special focus on improved lubricants for rotorcraft transmissions S. 561-572

„… for continuing airworthiness. Detection of abrasion & status monitoring The rulemaking task RMT.0725 …”

M. Weigand Smart and intelligent chip detectors using machine learning to monitor wear particles and dangerous degradation of critical powertrain components S. 995-998

„… effectiveness of existing chip detector systems in the EASA rulemaking task RMT.0725 provided additional …”

doi.org/10.51202/9783181023891

VDI - Intelligente Zustandsprognose und vorausschauende Instandhaltung

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VDI (Hrsg.)

Intelligente Zustandsprognose und vorausschauende Instandhaltung

Reihe: Blaue Papiere

Band 11/2022 2022

Treffer in den folgenden Teilen:

Ansätze und Konzepte im Prognostics S. 14-17

„… ist die nutzbare Restlebensdauer RUL. Sie beschreibt die verbleibende Zeit von der Gegenwart bis zum …” „… modellbasierter Ansatz genutzt, um für das gleiche System und die gleiche Ausfallart eine RUL zu prognostizieren …” „… . Durch Kom-bination aller berechneten RUL können die Stärken der Einzelansätze kombiniert und die …”

Grundidee des Prognostics and Health Managements S. 6-8

„… präzise und frühzeitige Prognose der nutzbaren Restlebensdauer, der „Remaining Useful Lifetime“ (RUL) des …” „… angenommen Fortschritt der De-gradation, sodass die Ermittlung der nutzbaren Restle-bensdauer (RUL) des …” „… Systems oder einzelner Kompo-nenten ermöglicht wird. Die RUL beschreibt somit den Zeitraum zwischen dem …”

Glossar S. 33

„… . Ereignis-Zeit-Analysen: Prognose der RUL basie-rend auf Ausfallwahrscheinlichkeitsverteilung der Zu-verlässigkeitstechnik …” „… Useful Life (RUL): Nutzbare Restlebens-dauer, Zeitraum zwischen dem aktuellen Zeitpunkt und dem …”

Ansätze und Konzepte im Health Management S. 18-22

„… des aktuellen und zukünftigen Asset-Zustands, oft in Form einer RUL-Information. Dazu kommen im Health …” „… Schienenverkehr oder die Vorhersage der RUL der Batterie eines AGV, wie im Beispiel in Abschnitt 3 beschrieben …” „… erfassten Daten Zustandsinformationen wie den Health Index oder die RUL, die zur Erstellung von …”

Fallbeispiel Transportroboter S. 9-13

„… Auf Basis der prognostizierten RUL aller Systeme lassen sich die Instandhaltungsmaßnahmen zum Tausch …”

doi.org/10.51202/9783949971112

GJAE - German Journal of Agricultural Economics

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GJAE - German Journal of Agricultural Economics

Alle Ausgaben: GJAE - German Journal of Agricultural Economics

GJAE Jahrgang 70 (2021) Heft 02 ISSN Online: 2191-4028

Treffer in den folgenden Teilen:

Norbert Hirschauer, Sven Grüner, Oliver Mußhoff, Claudia Becker A Primer on p-Value Thresholds and α-Levels – Two Different Kettles of Fish S. 123-133

„… contrast, statistical decision theory according to Neyman and Pearson aims at providing behavioral rules …” „… . This test represents the decision rule (“rule of behavior”) for decisions that are made many times …” „… rule of behavior is based on an a priori fixed level of the type I error rate (false positive rate …”

Sebastian Hess, Klara Fischer Beyond Cost Minimisation: Farmers’ Perspectives on the Adoption of GM Fodder in Sweden S. 84-100

„… without being hindered by rules? ... do you have sufficient control over the land you farm (by ownership …”

doi.org/10.51202/2191-4028-2021-02

VDI Wissensforum GmbH - International Conference on Gears 2023

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VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2023

Reihe: VDI-Berichte

Band 2422 2023

Treffer in den folgenden Teilen:

G. Devaraj Vibration reduction of planetary gear drive using mesh phasing: modelling and experimental validation S. 157-174

„… an initial design process of silent planetary gearbox; [3] derived mesh phasing rules to suppress …” „… , without taking into account any dynamic mesh force model. It has been specified that these design rules …” „… becomes chaotic. Similar design rules have been derived in the past [4, 5], and more recently in 2012 in …”

S.-J. Tsai, Q.-Y. Zhuang, L.-C. Chang Design and analysis of compound stepped planetary gear drives for better transmission performances S. 537-552

„… stepped planetary gear drives (CSPG). Six design rules based on equations for the assembly of planets are …” „… thus proposed to determine suitable numbers of teeth. A total of six study cases based on design rules …” „… correctly. That means, the determination of the number of teeth must follow specific rules. Meyer [1 …”

L. Binanzer, L. Merkle, M. Dazer, A. Nicola Pitting Detection for Prognostics and Health Management in Gearbox Applications S. 97-108

„… possible to reduce the load of damaged parts to increase the Remaining Useful Life (RUL) and at the same …” „… strategy enables to extend the RUL without any loss of performance [1], [6], [7]. Due to the application of …” „… the RUL is achieved (Fig. 1). The other teeth on the circumference of the gear are still intact at …”

L. Amar Review of the definition of the loads for spur and helical gears in standards and handbooks S. 301-314

„… . • Reference books also do not explicitly propose a convention but provide general rules. VDI-Berichte Nr …” „… away from the reference end. - Tangential force positive direction obtained by right hand rule …” „… four rules to verify if the signs of the forces on the bearings are correct: - Circumferential forces …”

T. Jagiella, S. Haller, J. Lechner, T. Rung, M. Wöppermann, B. Zeeb Building a software toolchain for automated mass-customization of specific end-use gear unit parts using AM-driven design guidelines S. 1607-1616

„… automatic design rule check to ensure that the subsequent process steps do not fail due to incorrect input …” „… optimization process is started. After the design rule check, the data is submitted to the CAD system. The CAD …” „… the technical feasibility of the process. 7. Proposed enhancements 7.1. Design for AM The design rules …”

J.-H. Park, B.-S. Kim, D. Im, D.-J. Moon, J.-H. Kim, Y.-J. Park Development of Damage-based Accelerated Life Test Code for Gearbox using Genetic Algorithm S. 329-340

„… ] as in Eq. (3). Damage was calculated using the linear cumulative damage theory of Miner's rule, which …” „… , Xue-Ling Fan, A statistically consistent fatigue damage model based on Miner’s rule, International Journal …”

J. Woelling, F. Manis Recycling of carbon fiber reinforced plastics – State of the Art and Challenges S. 1287-1296

„… up to now. So the following can only be seen as a general overview and a “rule of thumb”. In general …”

S. Birk, E. Stoppel, V. Labriola Influence of plastic-metal-pairings on the lifetime of gears S. 1535-1546

„… of the gear and cannot be treated as a general design rule. Fig. 9: Non optimized helical angle with …”

S. Moschkau, S. Held Optimization of product quality and manufacturing processes in real-time with vibration analysis S. 1821-1828

„… support ruler or tailstock to avoid interference or damped signals. The operation of autinityVC …”

H. Yakaria Securing the Quality Chain by the Networking with the Gear Suppliers S. 1617-1630

„… proprietary algorithms that can be documented within a standard or design rule. This standardization …”

J.-A. Meis Parametric system simulation of load sharing in planetary gearboxes S. 269-280

„… rules for wall thicknesses, minimal allowable gaps or other restrictions to ensure a reliable design …”

C. M. C. G. Fernandes, J. M. A. Pinto, D. E. P. Gonçalves, A. R. Silva Reduction of root and flank temperature using a hybrid polymer-metal rack S. 1547-1562

„… define it proportionally to the gear module m, so its density would follow the rule n N ∙ m. Here, n …”

A. Wedmann, M. Stein, K. Kniel Large gear metrology at PTB S. 1803-1820

„… the stylus system. As a rule, a probing system with four identical styli (tip diameter, stylus shaft …”

L. Bonaiti, M. Monti, C. Gorla, M. Geitner, T. Tobie, K. Stahl The consequences of different methodologies for the elaboration of pulsator test results with respect to the load spectrum assessment of gears S. 33-52

„… framework proposed by ISO 6336-6 [28], where the Palmgren-Miner rule is adopted. ISO 6336-6 [28] proposes a …”

L.-C. Chang, Q. Y. Zhuang, S.-J. Tsai, J.-F. Hochrein, S. Landler, M. Otto, K. Stahl Comparing the contact characteristics of involute gear/ eccentric cycloidal gear calculated by various loaded tooth contact analysis models S. 397-412

„… distributed on a ruledsurface to accurately capture the contact behavior. The trend of the contact curve …” „… concept of a ruled surface Sis used, which is generated by sweeping the tangent vectors tG and the contact …” „… C t (19) The contact deformation wi on each contact body i is adjusted based on the ruled surface …”

doi.org/10.51202/9783181024225

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