Showing 21 - 40 results of 333 for search '"GPS signals"', query time: 0.10s Refine Results
  1. 21

    A Novel Carrier Tracking Approach for GPS Signals Based on Gauss–Hermite Kalman Filter by Andrey Klokov, Motayam Kanouj, Aleksandr Mironchev

    Published 2022-07-01
    “…In this paper, a novel Gauss–Hermite Kalman filtering-based carrier tracking algorithm is proposed for static and moving receivers with weak GPS signals. The performance of the proposed algorithm is compared with two other approaches: extended Kalman filter (EKF) and unscented Kalman filter (UKF). …”
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    Article
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    2016 Central Italy Earthquakes: comparison between GPS signals and low-cost distributed MEMS arrays by N. Cenni, J. Boaga, F. Casarin, G. De Marchi, M. R. Valluzzi, G. Cassiani

    Published 2019-08-01
    “…We discuss advantages and limitations of this joint approach, reaching the conclusion that such low-cost sensors and the use of high rate GPS signal could be an effective choice for integrate the spatial density of stations providing strong-motion parameters.…”
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    Article
  4. 24

    Effect of Radio Frequency Interference (RFI) on the Global Positioning System (GPS) signals / Ahmad Norhisyam Idris by Idris, Ahmad Norhisyam

    Published 2015
    “…Meanwhile, results on unintentional RFI were showed the disturbance of GPS signals when operating too close with RFI sources below than five (5) meter. …”
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    Thesis
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    Roll Angle Measurement for a Spinning Vehicle Based on GPS Signals Received by a Single-Patch Antenna by Zilong Deng, Qiang Shen, Zhaowei Deng

    Published 2018-10-01
    “…The error estimation of this method and signal-to-noise ratio analysis of GPS signals are also studied. Finally, experiments on the rotary table were carried out to verify the proposed method. …”
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    Article
  7. 27

    Cooperative Localization of Multi-UAVs via Dynamic Nonparametric Belief Propagation under GPS Signal Loss Condition by Jiuqing Wan, Liping Zhong, Fan Zhang

    Published 2014-02-01
    “…However, due to the complex flight environment or failure of the GPS receiver, the UAV may lose its GPS signal and fail to locate itself, resulting in devastating consequence. …”
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    Article
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    Effect of the X5.4 class solar flare event of solar cycle 24 on the gps signal reception in Peninsular Malaysia by Ismail, S., Musa, T. A., Aris, W. A. W., Gopir, G.

    Published 2016
    “…In this paper, we examine the effect of solar flare event on the Global Positioning System (GPS) signal reception in Peninsular Malaysia during the X5.4 class solar flare on 7th March 2012, 00:24 UT at active region AR1429. …”
    Conference or Workshop Item
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    On the requirements for successful GPS spoofing attacks by Tippenhauer, N, Pöpper, C, Rasmussen, K, Capkun, S

    Published 2011
    “…An increasing number of wireless applications rely on GPS signals for localization, navigation, and time synchronization. …”
    Conference item
  14. 34

    Persistent Mapping of Sensor Data for Medium-Term Autonomy by Kevin Nickels, Jason Gassaway, Matthew Bries, David Anthony, Graham W. Fiorani

    Published 2022-07-01
    “…Secondly, the map is used for vehicle localization in the absence of GPS signals.…”
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    Article
  15. 35

    Indoor Positioning System Based on Global Positioning System Signals with Down- and Up-Converters in 433 MHz ISM Band by Abdulkadir Uzun, Firas Abdul Ghani, Amir Mohsen Ahmadi Najafabadi, Hüsnü Yenigün, İbrahim Tekin

    Published 2021-06-01
    “…The down-conversion is deployed to avoid the restrictions on the use of Global Navigation Satellite Systems (GNSS) repeaters, to achieve higher output power, and to expose the GPS signals to lower path loss. The repeaters receive outdoor GPS signals at 1575.42 MHz (L1 band), down-convert them to the 433 MHz ISM band, then amplify and retransmit them to the indoor environment. …”
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    Article
  16. 36

    Spaceborne gnss forward scattering radar for space debris detection by Yap, Jian Beng

    Published 2017
    “…A passive forward scatter radar system using GPS signals as illumination source offers a low cost, low power solution to detecting debris. …”
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    Final Year Project (FYP)
  17. 37

    Accurate Vehicle Location System Using RFID, an Internet of Things Approach by Jaco Prinsloo, Reza Malekian

    Published 2016-06-01
    “…Modern infrastructure, such as dense urban areas and underground tunnels, can effectively block all GPS signals, which implies that effective position triangulation will not be achieved. …”
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    Article
  18. 38

    GPS-derived total electron content response for the Bastille Day magnetic storm of 2000 at a low mid-latitude station by E. A. Araujo-Pradere

    Published 2005-08-01
    “…The program to obtain VTEC, the SEC’s Win TEC Project (Anghel and Codrescu, 2002), use the RINEX (Receiver Independent Exchange format) files to derive the vertical TEC from the delay of the Global Position System (GPS) signals.With a maximum Dst of –287.6 (maximum ap = 400), the storm of July 2000, known as the Bastille Day storm, has been one of the most intense perturbations in the present solar cycle. …”
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    Article
  19. 39

    A Light-Weight Technique to Detect GPS Spoofing Using Attenuated Signal Envelopes by Xiao Wei, Muhammad Naveed Aman, Biplab Sikdar

    Published 2023-01-01
    “…Since the signals from an authentic satellite and the spoofer undergo different attenuation, the captured envelope of fake GPS signals exhibits distinctive transmission characteristics due to short transmission paths. …”
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    Article
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    An Efficient Ultra-Tight GPS/RISS Integrated System for Challenging Navigation Environments by Malek Karaim, Mohamed Tamazin, Aboelmagd Noureldin

    Published 2020-05-01
    “…However, in some environments such as urban areas or in the presence of signal jamming, GPS signals cannot be easily tracked since they could be harshly attenuated or entirely blocked. …”
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    Article