Results 1 to 10 of about 58,862 (263)
Fourier Ambiguity Validation for Carrier-Phase GNSS [PDF]
SensorsCarrier-phase ambiguity validation is essential to ensure the reliability of integer ambiguity resolution in high-precision GNSS positioning. Although integer equivariant (IE) estimators provide optimal integer candidates within their class, noise and ...
Peter J. G. Teunissen
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LSOS: An FG Position Method Based on Group Phase Ranging Ambiguity Estimation of BeiDou Pseudolite
Remote Sensing, 2023 Due to the influence of indoor space environments, the carrier phase information obtained by the BeiDou pseudo-satellite often has the issue of cycle slips, which makes the user unable to carry out high-precision positioning.
Heng Zhang, Shuguo Pan
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Iterative Code-Aided ML Phase Estimation and Phase Ambiguity Resolution
EURASIP Journal on Advances in Signal Processing, 2005 As many coded systems operate at very low signal-to-noise ratios, synchronization becomes a very difficult task. In many cases, conventional algorithms will either require long training sequences or result in large BER degradations.
Wymeersch Henk, Moeneclaey Marc
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Discussion on Piston-Type Phase Ambiguity in a Coherent Beam Combining System
Photonics, 2022 Coherent beam combining (CBC) with closely arranged centrosymmetric arrays is a promising way to obtain a high-brightness laser. An essential task in CBC is to actively control the piston phases of the input beams, maintaining the correct phasing to ...
Haolong Jia +9 more
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Phase‐difference measurement‐based angle of arrival estimation using long‐baseline interferometer
IET Radar, Sonar & Navigation, 2023 This article presents a direction‐finding method based on phase difference measurement for wide‐ranging applications of electronic intelligence. By including three processing steps of rotating, re‐scaling, and rounding of phase plane, the proposed method
Van‐Sang Doan +3 more
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Integrity Monitoring for Carrier Phase Ambiguities [PDF]
Journal of Navigation, 2011 The determination of the correct integer number of carrier cycles (integer ambiguity) is the key to high accuracy positioning with carrier phase measurements from Global Navigation Satellite Systems (GNSS). There are a number of current methods for resolving ambiguities including the Least-squares AMBiguity Decorrelation Adjustment (LAMBDA) method ...
Jofre, Martí +9 more
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OFDM Network Optimization Using a QPSK Based on a Wind-Driven Genetic Algorithm
Sensors, 2022 Quadrature phase shift keying (QPSK) is a digital modulation technique that transmits data at a constant frequency whilst varying the phases of the carrier signal.
Yanxia Sun +2 more
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Expansion of phase uniqueness of projection methods when illuminated by sinusoidal pictures with different periods [PDF]
Омский научный вестник, 2019 The article describes a method for eliminating phase ambiguity in the use of a series of measurements with different periods. The choice of the period of sinusoidal patterns with given periods can be carried out using the structured illumination of ...
V. I. Guzhov +3 more
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Sensors, 2023 We present the broadband transmission-reflection meniscus-removal method for liquid characterization in a semi-open rectangular waveguide. The algorithm utilizes 2-port scattering parameters measured with a calibrated vector network analyzer for three ...
Michał Kalisiak +2 more
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Positioning in a Multipath Channel Using OFDM Signals With Carrier Phase Tracking
IEEE Access, 2020 In developing a high accuracy terrestrial radio navigation system, as a complement to a global navigation satellite system (GNSS), it is recognized that the performance of time delay estimation is proportional to, and thereby limited by, the signal ...
Han Dun +2 more
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