A Novel Underdetermined Blind Source Separation Algorithm of Frequency-Hopping Signals via Time-Frequency Analysis

Article Engineering, Electrical & Electronic

Tensor-Based Underdetermined Blind Identification of Instantaneous Mixtures

Baoze Ma et al.

Summary: This brief proposes a tensor-based underdetermined blind identification method for instantaneous mixture, which explores effective statistical information of observed signals and reduces computational complexity to speed up convergence.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS (2023)

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Article Computer Science, Artificial Intelligence

Underdetermined blind source separation method based on quantum Archimedes optimization algorithm

Hongyuan Gao et al.

Summary: This paper proposes an underdetermined blind source separation method based on the quantum Archimedes optimization algorithm, achieving higher accuracy and more reasonable initial parameter selection through solving the objective functions and initial estimation signal setting for engineering problems.

APPLIED INTELLIGENCE (2023)

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Article Engineering, Electrical & Electronic

Parameter Estimation of Frequency-Hopping Signal in UCA Based on Deep Learning and Spatial Time-Frequency Distribution

Meiyan Lin et al.

Summary: The article focuses on the estimation of parameters of frequency-hopping (FH) signals including hopping time, hopping period, hopping frequency, instantaneous bandwidth, and 2-D direction of arrival (2-D-DOA) in a uniform circular array (UCA). A lightweight model named FH-GYOLO based on You Only Look Once (YOLO) is proposed to detect FH signals and estimate their time-frequency (TF) parameters. The article also presents a 2-D-DOA estimation method for FH signals in UCA using the spatial TF distribution (STFD). Extensive simulations demonstrate the effectiveness and computational efficiency of the proposed algorithms.

IEEE SENSORS JOURNAL (2023)

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Review Physics, Applied

A comprehensive survey on 'circular polarized antennas' for existing and emerging wireless communication technologies

Iram Nadeem et al.

Summary: Circular polarized (CP) antennas are effective for long-distance transmission. A detailed investigation of their important conventional features is necessary for enhancing beyond 5G communication. This survey provides a review of CP antennas, covering various design implementations and approaches to realize CP antennas in different areas.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2022)

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Article Engineering, Aerospace

Frequency-Hopping MIMO Radar-Based Communications: An Overview

Kai Wu et al.

Summary: This article provides a timely introduction of FH-MIMO DFRC, a dual-function radar-communication system enabled by frequency-hopping MIMO radar technology. The article comprehensively reviews essential aspects of FH-MIMO DFRC and highlights remaining issues and potential solutions, guiding future research directions.

IEEE AEROSPACE AND ELECTRONIC SYSTEMS MAGAZINE (2022)

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Article Multidisciplinary Sciences

High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications

Mohammad Alibakhshikenari et al.

Summary: This research demonstrates the effectiveness of using SIW technology to enhance the performance of antenna arrays for sub-THz integrated circuit applications, achieving significant improvements in isolation, radiation gain, and efficiency. The proposed approach shows the viability of developing antenna arrays for sub-THz integrated circuits.

SCIENTIFIC REPORTS (2021)

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Review Engineering, Electrical & Electronic

Underdetermined Blind Source Separation for linear instantaneous mixing system in the non-cooperative wireless communication

Wei Cui et al.

Summary: A new blind separation strategy is proposed to solve the problem of blind separation in non-cooperative communication under general underdetermined conditions. The strategy involves fuzzy mean clustering algorithm and singular value membership matching algorithm to achieve accurate separation and reconstruction of mixed signals.

PHYSICAL COMMUNICATION (2021)

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Article Engineering, Multidisciplinary