Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236958
Z. Dai, R. Ziebold, A. Born, E. Engler
This paper presents the heading determination technique with the concept of DLR maritime PNT Unit. By analyzing the characteristics of individual existing heading sensors, a sensor-fusion based heading-determination system according to the concept of DLR maritime PNT Unit is introduced. This system improves the accuracy as well as the continuity of the heading and attitude results compared to the individual sensors. The preliminary results from a measurement campaign are presented to evaluate the performance of individual sensors and the PNT Unit.
{"title":"Heading-determination using the sensor-fusion based maritime PNT Unit","authors":"Z. Dai, R. Ziebold, A. Born, E. Engler","doi":"10.1109/PLANS.2012.6236958","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236958","url":null,"abstract":"This paper presents the heading determination technique with the concept of DLR maritime PNT Unit. By analyzing the characteristics of individual existing heading sensors, a sensor-fusion based heading-determination system according to the concept of DLR maritime PNT Unit is introduced. This system improves the accuracy as well as the continuity of the heading and attitude results compared to the individual sensors. The preliminary results from a measurement campaign are presented to evaluate the performance of individual sensors and the PNT Unit.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126484716","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}
Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236939
A. Jokinen, S. Feng, W. Ochieng, C. Hide, T. Moore, C. Hill
Precise Point Positioning (PPP) has been one of the major research interests in the Global Navigation Satellite System (GNSS) research field in recent years. PPP is a promising method because it can provide centimeter level positioning accuracy by using only one GNSS receiver, without using local reference networks. It is clear that this can provide cost savings compared to the traditional Real Time Kinematic (RTK) method, particularly if high accuracy positioning is required in remote areas.
{"title":"Fixed ambiguity Precise Point Positioning (PPP) with FDE RAIM","authors":"A. Jokinen, S. Feng, W. Ochieng, C. Hide, T. Moore, C. Hill","doi":"10.1109/PLANS.2012.6236939","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236939","url":null,"abstract":"Precise Point Positioning (PPP) has been one of the major research interests in the Global Navigation Satellite System (GNSS) research field in recent years. PPP is a promising method because it can provide centimeter level positioning accuracy by using only one GNSS receiver, without using local reference networks. It is clear that this can provide cost savings compared to the traditional Real Time Kinematic (RTK) method, particularly if high accuracy positioning is required in remote areas.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134383752","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}
Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236973
C. Bartone
This paper investigates the concepts of a Terrestrial Position and Timing System (TPTS) that could be used within the National Airspace System (NAS) in the event of a GPS outage to provide a positioning, navigation, and timing (PNT) service to aviation users. Concepts for a TPTS are presented for an L-band based system to be integrated/compatible with the distance measuring equipment (DME) system. The TPTS will be based upon a CDMA and TDMA signal structure. Three main operational modes are presented for a TPTS: 1) Autonomous Broadcast Mode, and 2) Active Interrogation/Response (IR/XP) Mode, and 3) a Hybrid solution. With a fully operational TPTS, an active TPTS aviation user could calculate a position, velocity, and time (PVT) solution from a single TPTS Site. The passive TPTS aviation user could calculate a PVT solution using the signals broadcast by two TPTS ground sites. With three TPTS sites in view, the passive TPTS aviation user equipment can calculate an “all-in-view” PVT solution using a subset of the signals transmitted from the TPTS ground sites. Additional studies will be needed to further explore the concepts of a TPTS for refinement, investigate compatibility with current systems, and validate these concepts, parameters, and techniques.
{"title":"A terrestrial positioning and timing system (TPTS)","authors":"C. Bartone","doi":"10.1109/PLANS.2012.6236973","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236973","url":null,"abstract":"This paper investigates the concepts of a Terrestrial Position and Timing System (TPTS) that could be used within the National Airspace System (NAS) in the event of a GPS outage to provide a positioning, navigation, and timing (PNT) service to aviation users. Concepts for a TPTS are presented for an L-band based system to be integrated/compatible with the distance measuring equipment (DME) system. The TPTS will be based upon a CDMA and TDMA signal structure. Three main operational modes are presented for a TPTS: 1) Autonomous Broadcast Mode, and 2) Active Interrogation/Response (IR/XP) Mode, and 3) a Hybrid solution. With a fully operational TPTS, an active TPTS aviation user could calculate a position, velocity, and time (PVT) solution from a single TPTS Site. The passive TPTS aviation user could calculate a PVT solution using the signals broadcast by two TPTS ground sites. With three TPTS sites in view, the passive TPTS aviation user equipment can calculate an “all-in-view” PVT solution using a subset of the signals transmitted from the TPTS ground sites. Additional studies will be needed to further explore the concepts of a TPTS for refinement, investigate compatibility with current systems, and validate these concepts, parameters, and techniques.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130931291","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}
Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236942
W. Leong, K. Patel, J. Weinfield, D. Karnick
The accuracy of radio frequency based navigation systems is dependent on the precision of ranging measurements, which are greatly limited by multipath propagation in severe environments. Synthetic aperture techniques have been proposed to mitigate the effects of multipath, leveraging user motion with array processing and beamforming techniques to isolate the line of sight component, thus reducing the impacts of propagation. This concept has several advantages, including the ability to obtain accurate line of sight measurements even in the presence of stronger multipath using a single element antenna, and reduced reliance on signal bandwidth to mitigate multipath. To test the algorithm, we designed an experiment in which RF data was collected by a driving user from two beacons, one serving as a control and the other testing synthetic aperture techniques. Here, we quantify Doppler estimation performance of the synthetic aperture techniques for the direction of arrival of the line of sight signal and of multipath in real-world environments.
{"title":"Synthetic aperture navigation algorithms applied to a driving user in multipath environments","authors":"W. Leong, K. Patel, J. Weinfield, D. Karnick","doi":"10.1109/PLANS.2012.6236942","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236942","url":null,"abstract":"The accuracy of radio frequency based navigation systems is dependent on the precision of ranging measurements, which are greatly limited by multipath propagation in severe environments. Synthetic aperture techniques have been proposed to mitigate the effects of multipath, leveraging user motion with array processing and beamforming techniques to isolate the line of sight component, thus reducing the impacts of propagation. This concept has several advantages, including the ability to obtain accurate line of sight measurements even in the presence of stronger multipath using a single element antenna, and reduced reliance on signal bandwidth to mitigate multipath. To test the algorithm, we designed an experiment in which RF data was collected by a driving user from two beacons, one serving as a control and the other testing synthetic aperture techniques. Here, we quantify Doppler estimation performance of the synthetic aperture techniques for the direction of arrival of the line of sight signal and of multipath in real-world environments.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133708501","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}
Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236971
P. Mattos, F. Pisoni
Consumer Multiconstellation silicon started with GPS-Galileo around 2007 [1], but with Glonass satellites available before Galileo, was first seen publically Teseo-2, STA8088, in 2010/11 [2,3,4]. With QZSS, Compass, GPS-L1C, Glonass-CDMA all expected, the silicon manufacturer must continue the path towards the fully flexible multi constellation receiver, otherwise the number and rate of new required chips would be beyond design and test resource capability. The early availability of the L1C signal on the QZSS satellite helps greatly, and is studied in this paper.
{"title":"GPS-III L1C signal reception demonstrated on QZSS","authors":"P. Mattos, F. Pisoni","doi":"10.1109/PLANS.2012.6236971","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236971","url":null,"abstract":"Consumer Multiconstellation silicon started with GPS-Galileo around 2007 [1], but with Glonass satellites available before Galileo, was first seen publically Teseo-2, STA8088, in 2010/11 [2,3,4]. With QZSS, Compass, GPS-L1C, Glonass-CDMA all expected, the silicon manufacturer must continue the path towards the fully flexible multi constellation receiver, otherwise the number and rate of new required chips would be beyond design and test resource capability. The early availability of the L1C signal on the QZSS satellite helps greatly, and is studied in this paper.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"13 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133136204","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}
Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236876
Euiho Kim
An optimized DME/DME network is one of the Federal Aviation Administration's (FAA) proposed Alternative Position, Navigation, and Timing (APNT) architectures. In comparison to other FAA-proposed APNT architectures, namely DME pseudolite network and passive Wide-Area Multilateration, airline operators find DME/DME more attractive for navigation back-up, as this solution requires no change to avionics used by nearly all commercial aircraft, thus reducing equipage costs to private companies. It is also advantageous because the absolute DME range measurements likely require a lower number of stations than the other architectures, thereby minimizing the cost to the public of installing new infrastructure. However, the insufficient range accuracy of the traditional DME (DME/N) has caused hesitation in actively pursuing this solution. U.S. and ICAO DME range accuracy standards of 0.2 nm is insufficient to support RNAV/RNP 0.3 nm operations, the performance the FAA has defined as needed for APNT. However, these standards are based on antiquated DME designs and have failed to account for advancements in both aircraft and ground station radio designs and performance. Recent flight inspections of DME range determined that the accuracy of the current state-of-the-art DME (DME/N) ground transponder is much better than 0.2 nm using current-day DME avionics. This enhanced accuracy presents an opportunity to leverage this technology and the network of DME ground stations for APNT. The DMEs in most stations in the National Airspace System (NAS) have been in service for more than 20 years and are due for replacement. It is thought that replacing DME legacy radios with modern state-of-the-art DMEs could support RNAV/RNP 0.3 operations, as well as optimize coverage with minimal addition to the DME network. This supposition leads to the feasibility study of the proposed APNT optimized DME/DME network. Using the expected range accuracy of the state-of-the-art DMEs, this paper investigates the feasibility of this proposed APNT solution by answering the following two key questions. First, what would be the optimal DME/DME ground station network that enables RNAV/RNP 0.3 operation for navigation and surveillance? Second, will the DME/DME network have sufficient capacity to support high density air traffic such as the 2020 LA basin model? The paper provides preliminary research results, by evaluating selected areas of the continental United States. Recommendations for network operation are based on the sample areas.
{"title":"Investigation of APNT optimized DME/DME network using current state-of-the-art DMEs: Ground station network, accuracy, and capacity","authors":"Euiho Kim","doi":"10.1109/PLANS.2012.6236876","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236876","url":null,"abstract":"An optimized DME/DME network is one of the Federal Aviation Administration's (FAA) proposed Alternative Position, Navigation, and Timing (APNT) architectures. In comparison to other FAA-proposed APNT architectures, namely DME pseudolite network and passive Wide-Area Multilateration, airline operators find DME/DME more attractive for navigation back-up, as this solution requires no change to avionics used by nearly all commercial aircraft, thus reducing equipage costs to private companies. It is also advantageous because the absolute DME range measurements likely require a lower number of stations than the other architectures, thereby minimizing the cost to the public of installing new infrastructure. However, the insufficient range accuracy of the traditional DME (DME/N) has caused hesitation in actively pursuing this solution. U.S. and ICAO DME range accuracy standards of 0.2 nm is insufficient to support RNAV/RNP 0.3 nm operations, the performance the FAA has defined as needed for APNT. However, these standards are based on antiquated DME designs and have failed to account for advancements in both aircraft and ground station radio designs and performance. Recent flight inspections of DME range determined that the accuracy of the current state-of-the-art DME (DME/N) ground transponder is much better than 0.2 nm using current-day DME avionics. This enhanced accuracy presents an opportunity to leverage this technology and the network of DME ground stations for APNT. The DMEs in most stations in the National Airspace System (NAS) have been in service for more than 20 years and are due for replacement. It is thought that replacing DME legacy radios with modern state-of-the-art DMEs could support RNAV/RNP 0.3 operations, as well as optimize coverage with minimal addition to the DME network. This supposition leads to the feasibility study of the proposed APNT optimized DME/DME network. Using the expected range accuracy of the state-of-the-art DMEs, this paper investigates the feasibility of this proposed APNT solution by answering the following two key questions. First, what would be the optimal DME/DME ground station network that enables RNAV/RNP 0.3 operation for navigation and surveillance? Second, will the DME/DME network have sufficient capacity to support high density air traffic such as the 2020 LA basin model? The paper provides preliminary research results, by evaluating selected areas of the continental United States. Recommendations for network operation are based on the sample areas.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134501680","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}
Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236857
E. Edwan, Jieying Zhang, O. Loffeld
In this paper, we present a novel configuration of fixed distributed accelerometers combined with rotating accelerometers to infer the angular motion. Traditionally, fixed distributed accelerometers are configured to form a gyro-free inertial measurement unit (GF-IMU). The main advantage of using rotating accelerometer over fixed one is having direct measurements of the angular velocity. This configuration can be used to find a complete attitude solution. For static case, the heading angle is computed from angular velocity due to Earth rotation sensed by the rotating accelerometer while the tilt angles are found from the projected gravity sensed by an accelerometer triad.
{"title":"Angular motion and attitude estimation using fixed and rotating accelerometers configuration","authors":"E. Edwan, Jieying Zhang, O. Loffeld","doi":"10.1109/PLANS.2012.6236857","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236857","url":null,"abstract":"In this paper, we present a novel configuration of fixed distributed accelerometers combined with rotating accelerometers to infer the angular motion. Traditionally, fixed distributed accelerometers are configured to form a gyro-free inertial measurement unit (GF-IMU). The main advantage of using rotating accelerometer over fixed one is having direct measurements of the angular velocity. This configuration can be used to find a complete attitude solution. For static case, the heading angle is computed from angular velocity due to Earth rotation sensed by the rotating accelerometer while the tilt angles are found from the projected gravity sensed by an accelerometer triad.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131423057","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}
Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236899
D. Grejner-Brzezinska, J. N. Markiel, C. Toth, Andrew Zaydak
This paper describes initial research effort aimed at enabling multi-sensory, robust cooperative navigation solution, including seamless transition capabilities between different types of navigation platforms that navigate together, with the focus on transitional environments. The emphasis of the navigation performance assessment is on the 3D imagery, furnished by a flash LiDAR sensor, Kinect, in the indoor environment, and the transition from/to outdoor environment. The sensor and systems used in this demonstration are (1) multi-sensor assembly placed in a land-based platform, and (2) personal navigator, transitioning from the land-based platform (deployment vehicle) to the indoor environment. The algorithmic approach as well as the navigation results will be discussed.
{"title":"Cooperative navigation in transitional environments","authors":"D. Grejner-Brzezinska, J. N. Markiel, C. Toth, Andrew Zaydak","doi":"10.1109/PLANS.2012.6236899","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236899","url":null,"abstract":"This paper describes initial research effort aimed at enabling multi-sensory, robust cooperative navigation solution, including seamless transition capabilities between different types of navigation platforms that navigate together, with the focus on transitional environments. The emphasis of the navigation performance assessment is on the 3D imagery, furnished by a flash LiDAR sensor, Kinect, in the indoor environment, and the transition from/to outdoor environment. The sensor and systems used in this demonstration are (1) multi-sensor assembly placed in a land-based platform, and (2) personal navigator, transitioning from the land-based platform (deployment vehicle) to the indoor environment. The algorithmic approach as well as the navigation results will be discussed.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115623865","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}
Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236923
G. Panahandeh, D. Zachariah, M. Jansson
In this paper, an ego-motion estimation approach is introduced that fuses visual and inertial information, using a monocular camera and an inertial measurement unit. The system maintains a set of feature points that are observed on the ground plane. Based on matched feature points between the current and previous images, a novel measurement model is introduced that imposes visual constraints on the inertial navigation system to perform 6 DoF motion estimation. Furthermore, feature points are used to impose epipolar constraints on the estimated motion between current and past images. Pose estimation is formulated implicitly in a state-space framework and is performed by a Sigma-Point Kalman filter. The presented experiments, conducted in an indoor scenario with real data, indicate the ability of the proposed method to perform accurate 6 DoF pose estimation.
{"title":"Exploiting ground plane constraints for visual-inertial navigation","authors":"G. Panahandeh, D. Zachariah, M. Jansson","doi":"10.1109/PLANS.2012.6236923","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236923","url":null,"abstract":"In this paper, an ego-motion estimation approach is introduced that fuses visual and inertial information, using a monocular camera and an inertial measurement unit. The system maintains a set of feature points that are observed on the ground plane. Based on matched feature points between the current and previous images, a novel measurement model is introduced that imposes visual constraints on the inertial navigation system to perform 6 DoF motion estimation. Furthermore, feature points are used to impose epipolar constraints on the estimated motion between current and past images. Pose estimation is formulated implicitly in a state-space framework and is performed by a Sigma-Point Kalman filter. The presented experiments, conducted in an indoor scenario with real data, indicate the ability of the proposed method to perform accurate 6 DoF pose estimation.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114893195","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}
Pub Date : 2012-04-23DOI: 10.1109/PLANS.2012.6236937
Kedong Wang, Shaofeng Xiong, Yong Li
ARMA-modeling the inertial sensor's colored noise must determine the AR parameters, the MA parameters, as well as the variance of the measurement white noise when the order of the ARMA model is estimated. Due to the existence of the MA items, the Yule-Walker equation constructed by the colored noise's autocovariances starts from the order higher than the order of MA or AR model, which prevents from further improvement of the ARMA-modeling accuracy. In this paper, the ARMA model is approximated to a high-order AR model. Since there are no MA items in the approximated AR model, the Yule-Walker equation can be constructed from the 1st-order of the colored noise's autocovariances, which is beneficial to improving the estimation accuracy of the white noise variance. This method can also be used to estimate the AR parameters accurately. Simulations and experiment validate the effectiveness of the method. The length of the colored noise used in the ARMA modeling is also determined quantitatively.
{"title":"Modeling with noises for inertial sensors","authors":"Kedong Wang, Shaofeng Xiong, Yong Li","doi":"10.1109/PLANS.2012.6236937","DOIUrl":"https://doi.org/10.1109/PLANS.2012.6236937","url":null,"abstract":"ARMA-modeling the inertial sensor's colored noise must determine the AR parameters, the MA parameters, as well as the variance of the measurement white noise when the order of the ARMA model is estimated. Due to the existence of the MA items, the Yule-Walker equation constructed by the colored noise's autocovariances starts from the order higher than the order of MA or AR model, which prevents from further improvement of the ARMA-modeling accuracy. In this paper, the ARMA model is approximated to a high-order AR model. Since there are no MA items in the approximated AR model, the Yule-Walker equation can be constructed from the 1st-order of the colored noise's autocovariances, which is beneficial to improving the estimation accuracy of the white noise variance. This method can also be used to estimate the AR parameters accurately. Simulations and experiment validate the effectiveness of the method. The length of the colored noise used in the ARMA modeling is also determined quantitatively.","PeriodicalId":282304,"journal":{"name":"Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117191151","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}
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