2017 DGON Inertial Sensors and Systems (ISS)最新文献

{"title":"Highest bias stability fiber-optic gyroscope SRS-5000","authors":"Y. Korkishko, V. Fedorov, V. Prilutskiy, V. Ponomarev, I. Fedorov, S. Kostritskii, I. Morev, D. Obuhovich, S. Prilutskiy, A. Zuev, V. Varnakov","doi":"10.1109/INERTIALSENSORS.2017.8171490","DOIUrl":"https://doi.org/10.1109/INERTIALSENSORS.2017.8171490","url":null,"abstract":"The aim of the current work was to produce the highest bias stability fiber-optic gyroscope SRS-5000 and to evaluate its main technical characteristics. Five prototype SRS-5000 devices were comprehensively measured and evaluated. Measured devices' parameters (ARW around 69 M°/√hour with bias stability better than 8×10−5 °/hour) allow to assess this type of devices as the highest-precision strategic grade fiber-optic gyroscopes, commercially available.","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123581623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tightly-coupled GNSS-aided inertial system with modulation rotation of two-antenna measurement unit","authors":"G. Emel’yantsev, E. Dranitsyna, A. Stepanov, B. Blazhnov, I. Vinokurov, P. Kostin, P. Petrov, D. Radchenko","doi":"10.1109/INERTIALSENSORS.2017.8171503","DOIUrl":"https://doi.org/10.1109/INERTIALSENSORS.2017.8171503","url":null,"abstract":"This report presents the results of research on the development of a small-sized, all-latitude GNSS-aided inertial system with compass properties, designed as a tightly-coupled system. In course of research, a breadboard model of the system was created, where the accuracy of determined orientation parameters, including true heading, was observed to improve considerably in the operation mode with the use of information from two-antenna satellite navigation equipment. It became possible to determine the true heading when observing the signal from just one navigation satellite. Heading accuracy is provided for the signals with both code and frequency division.","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133742054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A hybrid grading calibration method of FOG-IMU and its experimental verification","authors":"J. Chang, Bo Zhao, Fei Yu, R. Zhang, P. Wu","doi":"10.1109/INERTIALSENSORS.2017.8171498","DOIUrl":"https://doi.org/10.1109/INERTIALSENSORS.2017.8171498","url":null,"abstract":"There exist some problems in the fiber optic gyro inertial measurement unit(FOG-IMU) calibration, such as dependence on high-precision turntable, low precision, rigorous calibration condition and so on. Aiming at these problems, we propose a high-precision grading calibration method. Firstly, system parameters are calibrated by the discrete calibration method, in which the effects of the lever-arm are considered. Secondly, sensors' parameters are compensated effectively. Afterwards, the residual components of the IMU parameters are used as estimated objects and a 27-dimension Kalman filter is established by using velocity errors as observed quantities. The residual errors of coarse calibration will be estimated and compensated as well. Finally, results are validated through turntable experiments.","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132613827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced surface micromachining process for inertial sensors","authors":"J. Claßen, A. Sorger, J. Mehner","doi":"10.1109/INERTIALSENSORS.2017.8171496","DOIUrl":"https://doi.org/10.1109/INERTIALSENSORS.2017.8171496","url":null,"abstract":"An advanced micromachining process has been developed to further enhance the performance and to reduce the size of mass-produced inertial MEMS. In this new platform technology two independent silicon layers instead of one can be used to form more complex 3D-like masses, springs, and free-standing electrodes. The first accelerometer generations for automotive and CE applications are already in series production and demonstrate the capabilities of the new technology, for example by exhibiting an unparalleled offset stability. The new technology can also be used to build advanced multi-axis gyroscopes with improved performance. As an example, first prototypes of gyroscopes show an increase of roll and pitch sensitivity of approximately 40% compared to standard designs with the same sensor core size. Moreover, the seismic mass of the gyroscopes can be more flexibly adjusted to improve, e.g., the capability of electrostatic quadrature cancellation.","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121274440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Could cold atom interferometry sensors be the future inertial sensors? — First simulation results","authors":"M. Bochkati, S. Schön, D. Schlippert, C. Schubert, E. Rasel","doi":"10.1109/INERTIALSENSORS.2017.8171500","DOIUrl":"https://doi.org/10.1109/INERTIALSENSORS.2017.8171500","url":null,"abstract":"Quantum technology have attracted strong interest in recent years thanks to its extreme sensitivity to inertial forces and its strong immunity to drifts compared to conventional mechanical sensors. This paper introduces cold atom sensors as six-axis inertial sensors from the engineering point of view. In order to highlight the potential of this technology as needed for inertial navigation, a strapdown closed-loop-simulation has been developed. Furthermore, we present an error model for quantum sensors that includes terms such as quantum shot noise and phase noise of the reference laser. Considering this inherent stochastic characteristics, we made also a comparison with other conventional inertial measurement units. The analysis shows that quantum sensors with the same sensitivity as of for static measuring local gravity can determine their position with accuracy of one-meter level even after one hour, while other quantum sensors with less sensitivity exhibit for the same duration an amplitude up to 1 km, similar to conventional sensors.","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121551785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improvements of compact resonator fiber optic gyroscopes","authors":"G. Sanders, L. Strandjord, J. Wu, W. Williams, M. Smiciklas, M. Salit, C. Narayanan, E. Benser, T. Qiu","doi":"10.1109/INERTIALSENSORS.2017.8171510","DOIUrl":"https://doi.org/10.1109/INERTIALSENSORS.2017.8171510","url":null,"abstract":"This paper reports recent progress beyond our initial report [1] in resonator fiber optic gyroscope (RFOG) development towards realization of a next generation compact device for commercial navigation applications by incorporation of silicon optical bench technology to miniaturize resonator and input optics. The resonator fiber optic gyro is being pursued because of its theoretical potential to meet navigation grade performance in a smaller size and lower cost than ring laser gyros (RLGs) and interferometric fiber optic gyros (IFOGs) [2]. This is due to the fact that the RFOG combines sensitivity-increasing signal to noise attributes of recirculating the light like an RLG, in addition to the ability to wind longer path length multi-turn coils like an IFOG, using optical fiber. New architectures realized with relatively small fiber-optic resonators and optics on a silicon optical bench (SIOB) are presented, along with initial bias stability test data. The laser architecture (Figure 1), which uses two phase-locked lasers to probe clockwise and counterclockwise resonances of a ring resonator, has been presented [3,4] at the OFS-24 in 2015 and at the 2016 SPIE 40th Anniversary of Fiber Optic Gyros Conference using all-fiber resonators and components. The all-fiber implementation, however, is less likely to meet the small-size and low-cost demands of the navigation market. The incorporation of the SIOB technology represents an important step forward in the miniaturization of the RFOG technology. In addition, the SIOB technology promises to be compatible with high volume, low-cost manufacturing techniques used for silicon processing, and automated assembly techniques. The operation of the RFOG is presented in this paper, which discusses the implementation with an SIOB. The SIOB plays a critical role in closing the resonator loop by connecting two ends of the coil, as well as providing an input light path into the resonator, and out of the resonator. By laying fibers in opposite ends of a v-groove with ball lenses in between, light is aligned and focused from one end of the loop fiber to the other. In the region between the ball lenses, light is collimated and polarized so that tiny beam-splitters can couple the light into and out of the resonator. The input paths also incorporate circulators on the chip to attenuate feedback to the lasers. Recent results show bias stability <0.02 deg/hr. These very encouraging early results are amongst the best reported for RFOGs, even though they are the first report of introducing an SIOB into the loop. In addition, we addressed the unknown question of temperature stability of the SIOB in this paper by testing an SIOB over a non-condensing temperature range of 20 degree C to 85 degree C (the unit was not packaged or sealed). As depicted in Figure 7, its finesse demonstrates remarkable stability showing negligible change over temperature. This work demonstrates a further step in the development of a compact RFOG along","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124706366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sharing historical data on tactical-grade MEMS-based IMUs delivered to global customers for almost a decade","authors":"R. Holm, H. Schou, H. Petersen, S. Normann","doi":"10.1109/InertialSensors.2017.8171497","DOIUrl":"https://doi.org/10.1109/InertialSensors.2017.8171497","url":null,"abstract":"Sensonor has since 2009 produced tactical-grade MEMS-based IMUs and gyro-modules. During this time, approximately 20,000 parts, containing 60,000 MEMS gyros, have been shipped. Prior to this, Sensonor has been the supplier of high-reliable MEMS sensors, including gyros, to demanding safety applications in the automotive industry for more than 20 years. This paper will focus on the MEMS gyros and present data on key-parameters such as Bias, Angular Random Walk, In-Run Bias Stability, Scale-factor, Non-Linearity and Axis-Misalignment. Distributions and trend-plots, based on thousands of tactical-grade gyros, will be presented to provide information on what to expect in terms of variation from a MEMS-based gyro. This data is extracted from Sensonor's vast production database containing data from every IMU and gyro-module manufactured. Further, data related to long-term drift from e.g. HTOL (High Temperature Operating Life) and data measured on parts over a longer period of time, such as “golden devices” used to verify stability of production test-processes, will be presented. Finally, some key lessons learned from the long period as a MEMS supplier to the automotive industry will be shared. This includes topics like high-reliability and continuous improvements.","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114657633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tactical grade MEMS accelerometer","authors":"S. Gonseth, R. Brisson, D. Balmain, M. Di-Gisi","doi":"10.1109/INERTIALSENSORS.2017.8171495","DOIUrl":"https://doi.org/10.1109/INERTIALSENSORS.2017.8171495","url":null,"abstract":"SAFRAN COLIBRYS introduce the MS1000 accelerometer, a new class of high performance MEMS accelerometer specially designed for inertial applications. It is based on Colibrys' long experience with MEMS technology and introduces an innovative design solution to meet tactical grade requirements. This paper introduces the MS1000 architecture, reviews in detail the key performances of the product, and presents qualification results.","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124287076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IMU-based mounting parameter estimation on construction vehicles","authors":"Zsigmond Péntek, T. Hiller, T. Liewald, B. Kuhlmann, A. Czmerk","doi":"10.1109/INERTIALSENSORS.2017.8171504","DOIUrl":"https://doi.org/10.1109/INERTIALSENSORS.2017.8171504","url":null,"abstract":"This study reports on a method for parameter estimation of a randomly placed inertial measurement unit (IMU) on an excavator arm. Cost and time can be saved if the sensing equipment is self-calibrating and the mounting position is not a strict requirement. A sensor kit could be mounted on an autonomous construction vehicle — an excavator or front loader, for instance — and calibrate by itself. Automatic recalibration improves accuracy error over lifetime caused by sensor ageing, for instance. Inertial sensors are small, cheap and can endure harsh environments better compared to other sensors that measure position and configuration of a hydraulic arm. An IMU containing 3D gyroscopes and accelerometers can measure the absolute angle according to the Earth coordinate system with suitable algorithms, and can estimate the relative arm segment angles and the distances from the rotation axes.","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125576428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrity monitoring in GNSS/INS systems by optical augmentation","authors":"A. Schwithal, C. Tonhäuser, S. Wolkow, M. Angermann, P. Hecker, N. Mumm, F. Holzapfel","doi":"10.1109/INERTIALSENSORS.2017.8171506","DOIUrl":"https://doi.org/10.1109/INERTIALSENSORS.2017.8171506","url":null,"abstract":"Reliable aircraft guidance is one of the main contributors to the high level of safety that is achieved today on modern aircraft. Especially during the landing phase, where aircraft are close to other surrounding traffic and ground obstacles, any undetected deviation from the desired flight path may lead to catastrophic consequences. Automatic landing systems today are based on different ground-based guidance techniques, for example the Instrument Landing System (ILS). They perform well but are expensive in terms of installation and maintenance costs and therefore are only available on bigger airports. In contrast smaller General Aviation (GA) aircraft and regional airports often are not equipped with the above named landing systems. Therefore, this paper presents an alternate low cost aircraft autonomous landing system for GA aircraft, which does not require any type of ground-based navigation equipment. The system consists of a classical GNSS/INS system that is augmented by a new optical positioning system for integrity monitoring. The monitor ensures that any deviation caused by either the navigation system or the guidance system will alert the pilot and trigger an automatic go-around maneuver. This paper outlines the developed system architecture and presents the basic monitoring algorithms. The system was designed in compliance with the Required Navigation Performance (RNP) concept introduced and published by ICAO. The system is still under development and was tested during real flight trials onboard a twin-engine Dornier 128 aircraft during various approaches on Braunschweig airport, see figure 1. This paper presents a profound analysis of the achieved system performance during normal operation and discusses the error budgets that result from the positioning system on the one hand and the flight control deviation on the other. Finally, simulated sensor errors were applied to the recorded flight data in order to demonstrate the fault detection capability within the necessary time to alert. The following analysis presents the performance that can already be achieved by the system today and identify potential gaps with respect to the required system performance.","PeriodicalId":402172,"journal":{"name":"2017 DGON Inertial Sensors and Systems (ISS)","volume":"165 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125968824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}