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A Survey on Satellite Communication System Security [PDF]
In recent years, satellite communication systems (SCSs) have rapidly developed in terms of their role and capabilities, promoted by advancements in space launch technologies.
Minjae Kang, Sungbin Park, Yeonjoon Lee
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MBSE for Satellite Communication System Architecting
The risk of failure for aerospace missions can be reduced if architects model the product in a systematic way and make decisions for physical implementation based on stakeholder needs.
Su Gao, Wei Cao, Luhai Fan, Jihong Liu
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Modeling and Throughput Optimization of Multi-Gateway LoRaWAN
Low power wide area network (LPWAN) technologies have become an integral part of Internet-of-Things (IoT) applications due to their ability to meet key requirements such as long range, low cost, massive device numbers, and low energy consumption.
Baoguo Yu +4 more
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In Wi-Fi fingerprint positioning, what we should most care about is the distance relationship between the user and the reference points (RP). However, most of the existing weighted k-nearest neighbor (WKNN) algorithms use the Euclidean distance of ...
Boyuan Wang +6 more
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On the basis of realizing regional navigation, the Quasi-Zenith Satellite System (QZSS) has advanced navigation function, which leads to the broadcasting of more signals in a single frequency of QZSS signals. Current signal transmission technology cannot
Hongjun Ye +6 more
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Tracking systems for satellite communications
During the past twenty years or so a considerable amount of work has gone into the development of tracking schemes for satellite communication systems. Here a review of the various techniques is presented. For each method used the principle of operation is described and the various salient features extracted.
Hawkins, GJ, Edwards, DJ, McGeehan, JP
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Pedestrian Dead Reckoning Based on Motion Mode Recognition Using a Smartphone
This paper presents a pedestrian dead reckoning (PDR) approach based on motion mode recognition using a smartphone. The motion mode consists of pedestrian movement state and phone pose.
Boyuan Wang +4 more
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WiFi fingerprint positioning has been widely used in the indoor positioning field. The weighed K-nearest neighbor (WKNN) algorithm is one of the most widely used deterministic algorithms.
Boyuan Wang +4 more
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Advanced Communications Satellite Systems [PDF]
Demand for in-orbit capacity through the use of satellite systems will continue throughout the next two decades. The potential of the 30/20 GHz frequency band for fixed satellite services will be exploited. However, many technology questions must be answered if the band is to be used commercially because of the high rain fades that can occur at these ...
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The characteristic of the satellite repeat shift time can reflect the status of the satellite operation, and is also one of the key factors of the sidereal filtering multipath correction.
Yanxi Yang, Jinguang Jiang, Mingkun Su
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