Zobrazeno 1 - 10
of 2 358
pro vyhledávání: '"Waveform design"'
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-19 (2024)
Abstract This paper focuses on radio resource management (RRM) in multi-user dual-function radar communication (DFRC) systems using orthogonal frequency division multiplexing (OFDM) waveforms. We propose two RRM schemes, one from the perspective of s
Externí odkaz:
https://doaj.org/article/ec13b71abcd44b469a3d668b721b6637
Autor:
Ashoka Chakravarthi Mahipathi, Bethi Pardhasaradhi, Purushottama Lingadevaru, Pathipati Srihari, John D'Souza, Linga Reddy Cenkeramaddi
Publikováno v:
IEEE Access, Vol 12, Pp 75442-75461 (2024)
To provide service to an abundant number of communication users and to avoid the spectrum scarcity problem, many researchers are fascinated to work towards the convergence of radar sensing and communication systems. In addition, future intelligent sy
Externí odkaz:
https://doaj.org/article/10fcbed4c02048ed94c4a9da1ad7d0c5
Publikováno v:
Leida xuebao, Vol 13, Iss 1, Pp 227-239 (2024)
The aiming jamming emitted by self-defense jammers renders various passive anti-jamming measures based on signal processing ineffective, posing severe threats to modern radars. Frequency agility, as an active countermeasure, enables the resistance of
Externí odkaz:
https://doaj.org/article/2b69b8146d0a4e50bd417e84e47e5370
Publikováno v:
Leida xuebao, Vol 13, Iss 1, Pp 160-173 (2024)
Orthogonal Frequency Division Multiplexing (OFDM) waveform design is one of the key physical layer technologies for achieving joint radar-communication. OFDM waveforms usually have issues with high Peak to Average Power Ratio (PAPR) and high waveform
Externí odkaz:
https://doaj.org/article/5429c92a51544daea6ee704742c9fe31
Publikováno v:
Leida xuebao, Vol 13, Iss 1, Pp 174-186 (2024)
Due to the mismatch between transmit waveforms and receive filters, Cross-Ambiguity Function (CAF) shaping plays an important role in the design of cognitive radar waveforms and allows more freedom for waveform optimization problem than conventional
Externí odkaz:
https://doaj.org/article/717fcd9cf5734051ab9b131e48a39219
Publikováno v:
IEEE Access, Vol 12, Pp 98075-98082 (2024)
One important aspect of radar systems is the transmit waveform, which plays a key role in defining system’s detection capability and target resolution. Waveforms with good autocorrelations and increased bandwidth are preferred for this purpose. How
Externí odkaz:
https://doaj.org/article/c175e526418641228d2f0f5c3bf95b7d
Publikováno v:
IEEE Access, Vol 12, Pp 24949-25017 (2024)
The Long Range protocol, commonly referred to as LoRa, is a widely adopted and highly regarded method of utilizing chirp spread spectrum (CSS) techniques at the physical (PHY) layer to facilitate low-power wide-area network (LPWAN) connectivity. By t
Externí odkaz:
https://doaj.org/article/42950d3a28f6478d82882bbe2d8f3f02
Publikováno v:
Cogent Engineering, Vol 11, Iss 1 (2024)
One of the challenges in inkjet technology is the reduction of residual vibration and crosstalk that can result in the appearance of satellites and ligaments in the produced droplets, which affects the overall printing quality. This study evaluated t
Externí odkaz:
https://doaj.org/article/981dfd127dcd46eeb67b7289493199b9
Publikováno v:
Electronics Letters, Vol 60, Iss 10, Pp n/a-n/a (2024)
Abstract Radar coincidence imaging (RCI) is a high‐resolution radar imaging mode which constructs a temporal spatial stochastic radiation field (TSSRF) and uses the correlation between reference signal and echoes for imaging. The correlation betwee
Externí odkaz:
https://doaj.org/article/802c4f2c16f5442cb09c0c1f49ccde9a
Publikováno v:
Leida xuebao, Vol 12, Iss 6, Pp 1275-1289 (2023)
Radio Frequency-screen is one of the earliest radar active antijamming measures. It achieves antijamming by transmitting cover pulses of different frequencies before the radar pulse signal to induce enemy jammers. As the demand for antijamming measur
Externí odkaz:
https://doaj.org/article/99670c185c404693b82b17636f0d4712