Spatial Correlation and Diversity of Low-Latitude Multipath Multimode HF Skywave Radio Channels

Kurniawati, Indah; Hendrantoro, Gamantyo; Wirawan, Wirawan; Taufik, Muhammad

doi:10.15866/irecap.v9i2.16177

Cited by 1 publication

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“…Multipath effects consist in the repetition of the same signal shifted in time due to the reflection of the signal itself coming from different paths [11]. This phenomenon is more dangerous in large cities, where the reflection of the navigation signals is considerably higher.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, Sünderhauf et al [10] developed a method to mitigate the multipath effect with the aim of improving the GNSS positioning determination of a generic user. Multipath effects consist in the repetition of the same signal shifted in time due to the reflection of the signal itself coming from different paths [11]. This phenomenon is more dangerous in large cities, where the reflection of the navigation signals is considerably higher.…”

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confidence: 99%

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A System-Level Engineering Approach for Preliminary Performance Analysis and Design of Global Navigation Satellite System Constellations

Nugnes

Colombo

Tipaldi

2020

IREASE

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This paper presents a system-level engineering approach for the preliminary coverage performance analysis and the design of a generic Global Navigation Satellite System (GNSS) constellation. This analysis accounts for both the coverage requirements and the robustness to transient or catastrophic failures of the constellation. The European GNSS, Galileo, is used as reference case to prove the effectiveness of the proposed tool. This software suite, named GNSS Coverage Analysis Tool (G-CAT), requires as input the state vector of each satellite of the constellation and provides the performance of the GNSS constellation in terms of coverage. The tool offers an orbit propagator, an attitude propagator, an algorithm to identify the visibility region on the Earth's surface from each satellite, and a counter function to compute how many satellites are in view from given locations on the Earth's surface. Thanks to its low computational burden, the tool can be adopted to compute the optimal number of satellites per each orbital plane by verifying if the coverage and accuracy requirements are fulfilled under the assumption of uniform in-plane angular spacing between coplanar satellites.

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Section: Introductionmentioning

confidence: 99%

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