Articles with "frequency hopping" as a keyword



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Multi-party watermark embedding with frequency-hopping sequences

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Published in 2021 at "Cryptography and Communications"

DOI: 10.1007/s12095-021-00517-8

Abstract: Embedding multiple watermarks into a digital object enables multiple purposes to be realized. In this paper, we present a multi-party watermark embedding framework based on frequency-hopping sequences (FHSs). In the proposed work, a certain number… read more here.

Keywords: watermark; multi party; watermark embedding; frequency hopping ... See more keywords
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Detection and parameter estimation of frequency hopping signal based on the deep neural network

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Published in 2021 at "International Journal of Electronics"

DOI: 10.1080/00207217.2021.1914190

Abstract: ABSTRACT In order to solve the problem of low detection rate of frequency hopping (FH) signal under low SNR, an FH signal detection technology based on deep neural network (vgg16 network) is proposed. Firstly, this… read more here.

Keywords: deep neural; frequency hopping; detection; frequency ... See more keywords
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Self-Organizing Hit Avoidance in Distributed Frequency Hopping Multiple Access Networks

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Published in 2017 at "IEEE Access"

DOI: 10.1109/access.2017.2774812

Abstract: In this paper, we investigate the frequency hit avoidance problem in distributed frequency hopping multiple access (FHMA) networks, in which each user intends to avoid the frequency hit with others by choosing the appropriate frequency… read more here.

Keywords: hit avoidance; frequency; frequency hopping; access ... See more keywords
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Ranging Method for Navigation Based on High-Speed Frequency-Hopping Signal

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2017.2787801

Abstract: The lack of sufficient spectral resources in many alternative positioning, navigation, and timing (APNT) systems for aviation has led to the problem of mutual interferences. Building APNT system with the cognitive radio and frequency-hopping (FH)… read more here.

Keywords: frequency; tfmr; method; ranging method ... See more keywords
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Performance Analysis of Frequency Hopping Ad Hoc Communication System With Non-Orthogonal Multiple Access

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2935024

Abstract: In this paper, we investigate the downlink performance of frequency hopping Ad Hoc communication system with non-orthogonal multiple access (FH-NOMA Ad Hoc), in which the mobile users are divided into multiple groups defined as NOMA… read more here.

Keywords: hopping hoc; access; performance; frequency ... See more keywords
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A New Frequency Hopping Signal Detection of Civil UAV Based on Improved K-Means Clustering Algorithm

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Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2021.3070491

Abstract: The rapid development of civil UAV promotes the social and economic development, and the frequent “flying illegally” events has brought great challenges to aviation safety and government supervision. The frequency hopping communication system used in… read more here.

Keywords: frequency; civil uav; hopping signal; frequency hopping ... See more keywords
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Hybrid Precoding Aided Fast Frequency-Hopping for Millimeter-Wave Communication

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Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2021.3124923

Abstract: The deployment of the Millimeter-Wave (mm-Wave) band in 5G and beyond wireless communications networks is one of the emerging fields owing to its potential of providing extensive bandwidth. Frequency Hopping (FH) has a high potential… read more here.

Keywords: frequency; millimeter wave; fast frequency; frequency hopping ... See more keywords
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Photonic Generation of Multilevel Frequency-Hopping Microwave Signal

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Published in 2019 at "IEEE Photonics Journal"

DOI: 10.1109/jphot.2018.2885943

Abstract: A photonic scheme to generate a 4-level frequency hopping (FH) microwave signal is proposed and experimentally demonstrated. The frequency of the generated signal can be fast and flexibly switched by shifting the combinations of two… read more here.

Keywords: frequency; microwave signal; hopping microwave; generation multilevel ... See more keywords
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An Architecture for Large-Area Sensor Acquisition Using Frequency-Hopping ZnO TFT DCOs

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Published in 2018 at "IEEE Journal of Solid-State Circuits"

DOI: 10.1109/jssc.2017.2740383

Abstract: Hybrid systems combine large-area electronics (LAE) with silicon-CMOS ICs for sensing and computation, respectively. In such systems, interfacing a large number of distributed LAE sensors with the CMOS domain poses a key limitation. This paper… read more here.

Keywords: frequency hopping; zno tft; large area;
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Synchronization of Frequency Hopping by LSTM Network for Satellite Communication System

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Published in 2019 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2019.2936019

Abstract: In this letter, a novel method for synchronization of frequency hopping signal is proposed for tactical satellite communication system. Proposed method consists of serial search for coarse acquisition and use of long short-term memory (LSTM)… read more here.

Keywords: frequency hopping; communication system; synchronization frequency; lstm network ... See more keywords
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Adaptive Measurement and Decoding of Frequency-Hopping Spread Spectrum Signals Based on Knowledge Enhanced Compressed Sensing

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Published in 2022 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2021.3136752

Abstract: The frequency-hopping spread spectrum (FHSS) signals can be sparsely represented in frequency domain at any given time. In this letter, we render a dictionary and propose non-cooperative adaptive compressed measurement and decoding methods of FHSS… read more here.

Keywords: frequency; frequency hopping; hopping spread; measurement decoding ... See more keywords