Results 21 to 30 of about 1,019,523 (294)
Remote Sensing, 2022 Earth reflected Global Navigation Satellite System (GNSS) signals can be received by dedicated orbital receivers for remote sensing and Earth observation (EO) purposes. Different spaceborne missions have been launched during the past years, most of which
Weiqiang Li +4 more
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Carrier-Assisted Phase Retrieval [PDF]
, 2021 Phase-retrieval (PR) schemes based on the modified Gerchberg-Saxton (GS) algorithm capture the full-field employing a dispersive element and intensity-only measurements to eliminate the use of a local oscillator. In this work, we propose two carrier-assisted PR schemes, namely central carrier-assisted PR (CCA-PR) and edge carrier-assisted PR (ECA-PR ...
openaire +1 more source
Carrier-Envelope Phase-Dependent Strong-Field Excitation
Physical Review Letters, 2022 We present a joint experimental-theoretical study on the effect of the carrier-envelope phase (CEP) of a few-cycle pulse on the atomic excitation process. We focus on the excitation rates of argon as a function of CEP in the intensity range from 50-300 TW/cm$^2$, which covers the transition between the multiphoton and tunneling regimes.
D. Chetty +11 more
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Noises in Double-Differenced GNSS Observations
Energies, 2022 Precise data processing from the Global Navigation Satellite Systems (GNSS) reference station network is mainly based on a combination of double-differenced carrier phase and code observations.
Dominik Prochniewicz +2 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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Sensors, 2015 The integration of Global Navigation Satellite Systems (GNSS) carrier phases with Inertial Navigation System (INS) measurements is essential to provide accurate and continuous position, velocity and attitude information, however it is necessary to fix ...
Houzeng Han +3 more
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Low-Cost BDS Reflectometry for Real-Time Water Surface Retrieval
Remote Sensing, 2023 The official launch of the Chinese BeiDou Navigation Satellite System with global coverage (BDS-3) presents significant opportunities for various applications, including precision agriculture and autonomous driving, among others.
Ken Deng +4 more
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Calibration of Magnetometers with GNSS Receivers and Magnetometer-Aided GNSS Ambiguity Fixing
Sensors, 2017 Magnetometers provide compass information, and are widely used for navigation, orientation and alignment of objects. As magnetometers are affected by sensor biases and eventually by systematic distortions of the Earth magnetic field, a calibration is ...
Patrick Henkel
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INS-Aided Multi-Antenna GNSS Carrier Phase Double Difference Spoofing Detection
IEEE Access, 2023 The effective spoofing detection can prevent GNSS receiver from providing erroneous positioning, velocity and timing information. Most of the available multi-antennas carrier phase double difference-based spoofing detection methods, regardless of the ...
Xin Zhang +4 more
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A Technique for Determining the Carrier Phase Differences between Independent GPS Receivers during Scintillation [PDF]
, 2007 A method for recovering the carrier phase differences between pairs of independent GPS receivers has been developed and demonstrated in truth-model simulations.
Humphreys, Todd E. +2 more
core +1 more source