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A Time–Frequency Domain Analysis Method for Variable Frequency Hopping Signal [PDF]
SensorsA variable frequency hopping (VFH) signal is a kind of frequency hopping (FH) signal that varies both in frequency and dwell time. However, in radio surveillance, the existing methods for unidentified signals using VFH cannot be effectively handled.
Zhengzhi Zeng +3 more
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Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic Dictionary [PDF]
Sensors, 2023 This paper considers the problem of estimating the parameters of a frequency-hopping signal under non-cooperative conditions. To make the estimation of different parameters independently of each other, a compressed domain frequency-hopping signal ...
Weipeng Zhu +3 more
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Signal Sorting Algorithm of Hybrid Frequency Hopping Network Station Based on Neural Network
IEEE Access, 2021 In non-cooperative frequency hopping communication system, the frequency hopping network station sorting of the received hybrid signals plays an important role and becomes an active research area in recent years.
Zhongyong Wang +4 more
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IEEE Access, 2019 Robust estimation of frequency hopping radar signal parameters is the key to achieving stable jam in frequency hopping communication. In order to deal with the poor noise resistance performance of conventional time-frequency analysis based parameter ...
Song Wei +5 more
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Photonic Generation of Multilevel Frequency-Hopping Microwave Signal
IEEE Photonics Journal, 2019 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 binary signals (i.e.,
Xia Feng +9 more
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IEEE Photonics Journal, 2018 A novel photonic approach to generate high-speed and wideband frequency-hopping microwave signal via switching the bias point of a dual-drive Mach-Zehnder modulator (DD-MZM) is proposed and experimentally demonstrated. The core component of the system is
Yang Chen
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A New Frequency Hopping Signal Detection of Civil UAV Based on Improved K-Means Clustering Algorithm
IEEE Access, 2021 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.
Jiaquan Ye +6 more
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The Identification of Frequency Hopping Signal Using Compressive Sensing
Communications and Network, 2009 Compressive sensing (CS) creates a new framework of signal reconstruction or approximation from a smaller set of incoherent projection compared with the traditional Nyquist-rate sampling theory. Recently, it has been shown that CS can solve some signal processing problems given incoherent measurements without ever reconstructing the signals.
Jia Yuan, Pengwu Tian, Hongyi Yu
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Parameter estimation of frequency hopping signal based on time-frequency matrix LCM
Dianxin kexue, 2021 To improve the performance of the parameter estimation of frequency hopping signal under low signal-to-noise ratio, a parameter estimation algorithm of frequency hopping signal based on time-frequency matrix LCM was proposed.Considering the different ...
Jiamin LIU +3 more
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Blind sorting of multiple FH signals in synchronous networking under underdetermined conditions [PDF]
ITM Web of Conferences, 2022 In order to improve the performance of network sorting under underdetermined conditions, this paper proposes a blind sorting method for multiple frequency hopping (FH) signals in synchronous networking based on the blind source separation.
Yang Yinsong +4 more
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