PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556)

26-29 April 2004

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Displaying Results 1 - 25 of 118
  • Honeywell gun-hard inertial measurement unit (IMU) development

    Publication Year: 2004, Page(s):49 - 55
    Cited by:  Papers (4)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (647 KB) | HTML iconHTML

    Honeywell has designed and manufactured a gun-hard IMU that provides the baseline for meeting the needs of DoD guided tactical munitions, as well as being a platform for commercial usage. The gun-hard IMU is a solid-state inertial sensor package that measures and provides inertial angular rates and linear accelerations in a body-mounted strap-down mechanization. Its compensated outputs include sum... View full abstract»

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  • Data map characteristic in aided navigation

    Publication Year: 2004, Page(s):771 - 774
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (295 KB) | HTML iconHTML

    Both Terrain Aided Inertial Navigation Systems (TAINS) and Gravity Aided INS (GAINS) are sorted out with Data-map Aided INS (DAINS). The reliability of DAINS relies on the characteristic of the reference map. The relationship has been dealt with among the sensors' sampling cycle, the sensors' precision, the data-map precision and its statistical characteristics. In this way, the related parameters... View full abstract»

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  • GpsOne: A new solution to vehicle navigation

    Publication Year: 2004, Page(s):341 - 346
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (418 KB) | HTML iconHTML

    GpsOne, which fuses GPS and wireless base station positioning signals, is a hybrid wireless assisted GPS technology proposed by Qualcomm Inc. It provides positioning service through wireless communication networks. Compared with GPS, gpsOne is more suitable for vehicle navigation due to its wider workable regions (urban, rural and even underground areas), higher positioning accuracy, lower price a... View full abstract»

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  • Honeywell MEMS inertial technology & product status

    Publication Year: 2004, Page(s):43 - 48
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (507 KB) | HTML iconHTML

    Honeywell has been engaged in the silicon micromachining technology since the late 1960's. MEMS-based pressure sensing systems are a significant element of Honeywell's Aerospace business. With the acquisition of the Draper Laboratory MEMS gyro and accelerometer, technology in 1999, Honeywell has reaffirmed its commitment to this game-changing technology. This paper describes the progress of Honeyw... View full abstract»

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  • Development of a gyro test system at Samsung Advanced Institute of Technology

    Publication Year: 2004, Page(s):133 - 142
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (713 KB) | HTML iconHTML

    Samsung Advanced Institute of Technology has developed a robust gyroscope based on microelectromechanical systems (MEMS) technology. To assist the gyro development and manufacturing an automated test system was created. The system is low cost one with modular and flexible structure controlled by computer having both basic and advanced features. The first aim was to create flexible system to meet t... View full abstract»

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  • Maximum likelihood time of arrival estimation for real-time physical location tracking of 802.11a/g mobile stations in indoor environments

    Publication Year: 2004, Page(s):585 - 591
    Cited by:  Papers (20)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (426 KB) | HTML iconHTML

    This paper describes a new method of time of arrival (TOA) estimation for OFDM signals in indoor multipath environments for application to location tracking systems based on time difference of arrival. The problem addressed is to estimate the line of sight (LOS) time delay between the transmitter and the receiver when the intervening multipath channel is not known. In our approach, we do not attem... View full abstract»

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  • Cooperative location model under the Nearest Neighbor criterion

    Publication Year: 2004, Page(s):658 - 661
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (263 KB) | HTML iconHTML

    This paper presents current work on decentralized data fusion applied to the relative localization among multiple platform, which is one of the key formation control techniques for mobile robots or unmanned aerial vehicles. A novel Nearest Neighbor-based scheme is proposed to estimate the navigational states own from the range measurement to other platform. The model to calculate the pseudomeasure... View full abstract»

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  • GPS attitude determination for a JPALS testbed: Integer initialization and testing

    Publication Year: 2004, Page(s):762 - 770
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (679 KB) | HTML iconHTML

    An attitude-based search algorithm was implemented for initial ambiguity resolution and integer determination, and then tested on a three-element equilateral array with baselines of 0.5m. Running the initialization algorithm at every epoch, it was found that the search algorithm gave efficient and reliable integer solutions for a static antenna array, but was sensitive to errors in a dynamic envir... View full abstract»

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  • Unaided acquisition of weak GPS signals using circular correlation or double-block zero padding

    Publication Year: 2004, Page(s):461 - 470
    Cited by:  Papers (21)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (751 KB) | HTML iconHTML

    Acquisition of very weak GPS signals requires long coherent and incoherent integration. Increasing the coherent, or predetection, integration time (PIT) improves sensitivity, but is limited because of the unknown data and bit edges. Incoherent integration is less sensitive, because of squaring loss. Two algorithms are developed to use a PIT which is a multiple of one data bit interval, without req... View full abstract»

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  • Geo-information entropy for positioning and navigation

    Publication Year: 2004, Page(s):296 - 299
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (312 KB) | HTML iconHTML

    An inertia navigation system (INS) must be regulated with aiding information for its long-term navigation precision. In this paper, the local geographic information entropy, as aiding information, is used to correct the INS error. A minimum variance matching algorithm is designed and simulated with MATLAB. As a result, geo-information is hardly interfered by the "outer world" as a navigation aidin... View full abstract»

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  • The experimental study on GPS/INS/DVL integration for AUV

    Publication Year: 2004, Page(s):337 - 340
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (371 KB) | HTML iconHTML

    To Navigate the Autonomous Underwater Vehicle (AUV) accurately is one of the most important aspects in AUV's study. The paper presents the basic composition and integration method of the AUV's navigation system using Extended Kalman Filtering (EKF) technique. In the specified application, GPS receiver, Strapdown INS and Doppler Velocity Log (DVL) are mounted aboard on the test vessel. The 3-day ex... View full abstract»

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  • Forward Inertial Sensor Package for the Compact Kinetic Energy Missile

    Publication Year: 2004, Page(s):35 - 42
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (686 KB) | HTML iconHTML

    This paper provides an overview of the Forward ISP, an integral component of the US Army Research, Development, and Engineering Command's (RDECOM) in-house Compact Kinetic Energy Missile (CKEM) missile, which was first flight-tested in October 2001. The Forward Inertial Sensor Package (ISP) was introduced on the third flight test in May 2003, and complements an inertial sensor suite in the aft por... View full abstract»

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  • ISAR technique with complementary phase code modulated signals

    Publication Year: 2004, Page(s):604 - 611
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (555 KB) | HTML iconHTML

    In this paper a new model of inverse synthetic aperture radar (ISAR) signal with complementary code phase modulation is presented. Correlation algorithm for range compression and spectral fast Fourier transform for azimuth compression are exploited. The presented Image reconstruction procedures are invariant to the object's trajectory parameters. Numerical experiment over the simulated ISAR data i... View full abstract»

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  • Multipath mitigation in the frequency domain

    Publication Year: 2004, Page(s):486 - 495
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (581 KB) | HTML iconHTML

    The GPS measurements can be modeled as true range plus other error sources such as orbit and clock biases, ionosphere, troposphere, multipath, and receiver noise. All of these errors have different frequency spectrum components. Ionosphere and troposphere errors are of low frequency, and the receiver noise has high frequency components. Orbit errors are typically bias terms, and multipath errors h... View full abstract»

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  • Application of wavelet packet analysis in the de-noising of MEMS vibrating gyro

    Publication Year: 2004, Page(s):129 - 132
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (310 KB) | HTML iconHTML

    In this paper, the theory of wavelet packet analysis and the algorithms of wavelet packet decomposition and reconstruction are introduced. Then, the method of the application of wavelet packet analysis in the de-nosing of a MEMS vibrating ring gyro is given. At last, the effectiveness of this method is verified by an experiment. View full abstract»

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  • Ground based 2D/3D position location system

    Publication Year: 2004, Page(s):581 - 584
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (375 KB) | HTML iconHTML

    A system and method for determining simultaneously and independently onboard of each aircraft and on the ground at Air Traffic Control Centers (ATCC) utilizing almost identical surveillance modules for determining the 3D position of all aircraft in an Air Traffic Control (ATC) area utilizing a Universal Time Clock (UTC) clock to further synchronize all of the surveillance modules on the aircraft a... View full abstract»

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  • Terrain navigation using the correlator method

    Publication Year: 2004, Page(s):649 - 657
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (694 KB) | HTML iconHTML

    In many vehicle applications such as, unmanned air vehicles (UAV), autonomous underwater vehicles (AUV), and submarine applications, there is a need to robustly and accurately determine the vehicle's position relative to a map in an effective way in terms of both cost and energy consumption. Such situations may occur in reconnaissance operations. This paper discusses terrain navigation using the c... View full abstract»

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  • Characterization of vibrating beam sensors during shock and vibration

    Publication Year: 2004, Page(s):102 - 110
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (626 KB) | HTML iconHTML

    This paper will describe data collection considerations and analysis methods used in the characterization of vibrating beam sensors during vibration and shock at frequencies to 10 kHz and beyond. Data sampling rate and quantization errors will be discussed. A simple method for data collection and analysis of sine sweep tests will be presented. View full abstract»

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  • Requirements for future aerospace

    Publication Year: 2004, Page(s):716 - 722
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (576 KB) | HTML iconHTML

    For civil aviation to be successful for decades to come, a number of factors are involved. Probably the first requirement is for an advanced global communications, navigation and surveillance (CNS) system. The present plan with augmented GPS will be quite inadequate, being short in functions, economy and especially security, with upcoming air traffic increases. A system concept called the Integrat... View full abstract»

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  • Radiolocation using AM broadcast signals: The role of signal propagation irregularities

    Publication Year: 2004, Page(s):752 - 761
    Cited by:  Papers (6)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (744 KB) | HTML iconHTML

    We have previously demonstrated that carrier phase measurements of the ubiquitous AM broadcast signals can be used for instantaneous radiolocation. The positioning accuracy, however, depends on how well the signal propagation characteristics can be modeled. In this paper, the signal propagation issues relevant to radiolocation are reviewed and empirical data on phase perturbation are presented. An... View full abstract»

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  • A fast matched filter in time domain

    Publication Year: 2004, Page(s):455 - 460
    Cited by:  Papers (3)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (404 KB) | HTML iconHTML

    This paper presents a fast matched filter algorithm in time domain. Matched filters compute correlation of signals for optimal detection of signals in noise, for extracting ranging measurements, synchronisation, etc. We consider matched filters in the context of Global Positioning System (GPS) receivers, but the algorithms presented here can be used for other applications as no constraining assump... View full abstract»

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  • A new kinematic theorem for rotational motion

    Publication Year: 2004, Page(s):285 - 295
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (486 KB) | HTML iconHTML

    The Goodman-Robinson theorem (ASME Jour. of App. Mech., vol.25, p, 210-213, 1968), used to explain kinematic drift in strapdown attitude algorithms due to coning motion, can be thought of as an integral form of the rotation vector differential equation. This theorem states that, in the absence of instrument errors, the delta-theta count of a rate-integrating-type gyro is equal to the time integral... View full abstract»

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  • Aspects of pure and satellite-aided inertial navigation for gun-launched munitions

    Publication Year: 2004, Page(s):327 - 336
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (680 KB) | HTML iconHTML

    Pure inertial navigation and satellite-aided inertial navigation have become standards in many military applications. This standard or sensors, receivers, algorithms and their implementation can be used for a wide range of systems such as ships, airplanes and missiles. However, gun-launched munitions have special requirements due to the following restrictions: initialization and transfer alignment... View full abstract»

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  • A miniature, gun-hard MEMS IMU for guided projectiles, rockets and missiles

    Publication Year: 2004, Page(s):26 - 34
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (784 KB) | HTML iconHTML

    BAE SYSTEMS is a leading provider of inertial sensors and systems, including silicon-MEMS inertial based products to automotive, commercial and military markets. BAE SYSTEMS is developing a miniature MEMS inertial measurement unit. SiIMU02™ is capable of surviving and performing after the massive shock and vibration environment of a guided projectile gun-launch event, and is small enough to ... View full abstract»

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  • H controller design of MEMS gyroscope and its performance test

    Publication Year: 2004, Page(s):63 - 69
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (474 KB) | HTML iconHTML

    In this paper, proposed is a feedback controller for MEMS gyroscope using H∞ control scheme and presented is the experimental performance test result with closed loop fabricated using discrete analog circuits. Since MEMS gyroscope is operated at its resonant frequency, its high quality factor limits the bandwidth of the gyroscope when it is operated under an open loop condition. T... View full abstract»

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