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Selected Topics in Signal Processing, IEEE Journal of

Issue 4 • Date Aug. 2009

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Displaying Results 1 - 25 of 28
  • Table of contents

    Publication Year: 2009 , Page(s): C1 - C4
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  • IEEE Journal of Selected Topics in Signal Processing publication information

    Publication Year: 2009 , Page(s): C2
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  • Introduction to the Issue on Advanced Signal Processing for GNSS and Robust Navigation

    Publication Year: 2009 , Page(s): 537 - 540
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  • A GPS Receiver for High-Altitude Satellite Navigation

    Publication Year: 2009 , Page(s): 541 - 556
    Cited by:  Papers (7)  |  Patents (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1608 KB) |  | HTML iconHTML  

    Although GPS has found wide application for precision spacecraft navigation and formation flying applications in low Earth orbit (LEO), its application to geosynchronous (GEO) and other high-altitude missions has been limited to an experimental role because of the sparsity and weakness of the GPS signals present there. To fill this gap, NASA Goddard Space Flight Center (GSFC) has developed a new s... View full abstract»

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  • GNSS Signal Acquisition in the Presence of Sign Transition

    Publication Year: 2009 , Page(s): 557 - 570
    Cited by:  Papers (16)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1690 KB) |  | HTML iconHTML  

    In this paper, the problem of acquiring the pilot and data channel of the next-generation systems (as Galileo, and GPS modernization) is addressed and analyzed, focusing the majority of the attention to the problem of managing the higher sign reversal transition rate due to the navigation message in the data channel and to the secondary code in the pilot channel. It must be considered that in the ... View full abstract»

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  • Closed-Loop Sequential Signal Processing and Open-Loop Batch Processing Approaches for GNSS Receiver Design

    Publication Year: 2009 , Page(s): 571 - 586
    Cited by:  Papers (8)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2357 KB) |  | HTML iconHTML  

    Global navigation satellite system (GNSS) receiver design is considered in terms of closed-loop and open-loop receiver architectures that utilize sequential and batch processing techniques. The paper uses the Global Positioning System (GPS) as a case study to demonstrate that an open-loop approach that combines batch and sequential signal processing improves GNSS signal tracking characteristics as... View full abstract»

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  • Positioning Accuracy Improvement With Differential Correlation

    Publication Year: 2009 , Page(s): 587 - 598
    Cited by:  Papers (5)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (475 KB) |  | HTML iconHTML  

    The success of satellite navigation in the mass consumer market will depend greatly on its performance in deep urban and moderate indoor environments. The signal obstructions in these environments lead to low signal-to-noise ratios, which substantially degrade the positioning accuracy of GPS and Galileo receivers. New ranging techniques are required to increase the positioning accuracy to an accep... View full abstract»

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  • Compass-M1 Broadcast Codes in E2, E5b, and E6 Frequency Bands

    Publication Year: 2009 , Page(s): 599 - 612
    Cited by:  Papers (7)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1932 KB) |  | HTML iconHTML  

    With the launch of the compass-M1 satellite on 14 April 2007, China is set to become the latest entrant into global navigation satellite systems (GNSS). Understanding the interoperability and integration of the Chinese Compass with the current GNSS, namely the U.S. Global Positioning System (GPS), the European Galileo, and the Russian GLONASS, requires knowing and understanding its signal structur... View full abstract»

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  • Collaborative Code Tracking of Composite GNSS Signals

    Publication Year: 2009 , Page(s): 613 - 626
    Cited by:  Papers (2)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1659 KB) |  | HTML iconHTML  

    Modern and modernized global navigation satellite system (GNSS) signals exhibit significant structural innovations such as the use of two channels, namely the data and pilot components, which separately carry the navigation message and ranging information. These innovations have stimulated the development of new techniques that fully exploit the potential of these new signals. This paper analyses ... View full abstract»

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  • A Nonlinear Code Tracking Filter for GPS-Based Navigation

    Publication Year: 2009 , Page(s): 627 - 638
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1305 KB) |  | HTML iconHTML  

    Current Global Positioning System (GPS)-based navigation systems are highly susceptible to unintentional and intentional jamming due to relatively low signal power at the receiver antenna and, in part, due to suboptimal code tracking loop designs that do not account for measurement nonlinearities near loss-of-lock. A nonlinear code tracking filter is developed whose architecture is based on a rigo... View full abstract»

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  • Nonlinear Filtering in GNSS Pseudorange Dynamics Estimation Combining Code Delay and Carrier Phase

    Publication Year: 2009 , Page(s): 639 - 650
    Request Permissions | Click to expandAbstract | PDF file iconPDF (605 KB) |  | HTML iconHTML  

    In Global Navigation Satellite System (GNSS) receivers, code delay measurements yield unambiguous but noisy pseudorange estimates. On the other hand, the pseudorange obtained with carrier phase measurements is almost noiseless, but is affected by an ambiguity term multiple of the carrier wavelength. In this paper, we propose a structure for code and carrier phase estimation and a novel technique t... View full abstract»

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  • Phase/Frequency Tracking in a GNSS Software Receiver

    Publication Year: 2009 , Page(s): 651 - 660
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (845 KB) |  | HTML iconHTML  

    In the paper, a software-based technique for the tracking of frequency and phase of Global Navigation Satellite System (GNSS) signals is proposed. It is shown that a software-based receiver with precomputed, zero-phase carrier replicas for phase tracking is subject to phase jump in phase tracking and ambiguity problems in frequency estimation. A phase/frequency tracking architecture is proposed in... View full abstract»

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  • Performance Analysis of Vector Tracking Algorithms for Weak GPS Signals in High Dynamics

    Publication Year: 2009 , Page(s): 661 - 673
    Cited by:  Papers (13)  |  Patents (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1635 KB) |  | HTML iconHTML  

    This paper explores the ability of vector tracking algorithms to track weak Global Positioning System (GPS) signals in high dynamic environments. Traditional GPS receivers use tracking loops to track the GPS signals. The signals from each satellite are processed independently. In contrast, vector-based methods do not use tracking loops. Instead, all the satellite signals are tracked by a lone Kalm... View full abstract»

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  • Multifrequency, Multisatellite Vector Phase-Locked Loop for Robust Carrier Tracking

    Publication Year: 2009 , Page(s): 674 - 681
    Cited by:  Papers (4)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1010 KB) |  | HTML iconHTML  

    A new vector phase-locked loop (PLL) for joint tracking of carrier phase from all satellites on multiple frequencies is presented. It increases the robustness to ionospheric scintillations, carrier phase multipath and interference from jammer. The tracking error is split into a position error, a clock offset, ionospheric, and tropospheric errors which are filtered individually. The filter coeffici... View full abstract»

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  • A General Model of Multipath Error for Coherently Tracked BOC Modulated Signals

    Publication Year: 2009 , Page(s): 682 - 694
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (772 KB) |  | HTML iconHTML  

    A new class of signals, modulated using a binary offset carrier (BOC), is being implemented and tested in multiple Global Navigation Satellite Systems (GNSSs). A receivers that tracks a BOC signal is considered more resistant to interference than tracking a signal modulated with a binary phase shift key (BPSK). In this study, that resistance is evaluated by analytically modeling the impact of mult... View full abstract»

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  • A Bayesian Approach to Multipath Mitigation in GNSS Receivers

    Publication Year: 2009 , Page(s): 695 - 706
    Cited by:  Papers (12)  |  Patents (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1089 KB) |  | HTML iconHTML  

    Multipath is known to be one of the most dominant sources of accuracy degradation in satellite-based navigation systems. Multipath may cause biased position estimates that could jeopardize high-precision applications. This paper considers the problem of tracking the time-variant synchronization parameters of both the line-of-sight signal (LOSS) and its multipath replicas. In particular, the propos... View full abstract»

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  • Simulating Ionosphere-Induced Scintillation for Testing GPS Receiver Phase Tracking Loops

    Publication Year: 2009 , Page(s): 707 - 715
    Cited by:  Papers (8)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (613 KB) |  | HTML iconHTML  

    A simple model is proposed for simulating equatorial transionospheric radio wave scintillation. The model can be used to test Global Positioning System phase tracking loops for scintillation robustness because it captures the scintillation properties that affect such loops. In the model, scintillation amplitude is assumed to follow a Rice distribution, and the spectrum of the rapidly-varying compo... View full abstract»

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  • Nonlinear Tracking-Differentiator for Velocity Determination Using Carrier Phase Measurements

    Publication Year: 2009 , Page(s): 716 - 725
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3459 KB) |  | HTML iconHTML  

    Differential computation is necessary in velocity determination using carrier phase measurements from the global navigation satellite system (GNSS). A method of nonlinear tracking-differentiator is proposed to suppress both noise amplification and time delay introduced by differentiation. The carrier phase rate can be derived more precisely using the nonlinear tracking-differentiator and the time ... View full abstract»

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  • IEEE Journal of Selected Topics in Signal Processing Information for authors

    Publication Year: 2009 , Page(s): 726 - 727
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  • Special issue on processing reverberant speech: methodologies and applications

    Publication Year: 2009 , Page(s): 728
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  • Special issue on distributed camera networks: sensing, processing, communication and computing

    Publication Year: 2009 , Page(s): 729
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  • 2010 ICASS Dallas

    Publication Year: 2009 , Page(s): 730
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  • 2010 IEEE International Symposium on Biomedical Imaging

    Publication Year: 2009 , Page(s): 731
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  • 2010 IEEE International Conference on Image Processing

    Publication Year: 2009 , Page(s): 732
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  • IEEE THEMES

    Publication Year: 2009 , Page(s): 733
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Aims & Scope

The Journal of Selected Topics in Signal Processing (J-STSP) solicits special issues on topics that cover the entire scope of the IEEE Signal Processing Society including the theory and application of filtering, coding, transmitting, estimating, detecting, analyzing, recognizing, synthesizing, recording, and reproducing signals by digital or analog devices or techniques.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Fernando Pereira
Instituto Superior Técnico