Zobrazeno 1 - 10
of 8 426
pro vyhledávání: '"power ratio"'
Autor:
Th. T. Pham, O. V. Tikhonova
Publikováno v:
Российский технологический журнал, Vol 12, Iss 5, Pp 42-49 (2024)
Objectives. Orthogonal frequency division multiplexing (OFDM) has become the standard for various high-speed wireless communication systems due to its several advantages, one of which is the efficient use of bandwidth. The main disadvantage of OFDM i
Externí odkaz:
https://doaj.org/article/e07ae72af3734bb08119ca8847deae36
Autor:
Chowtapalle Anuraag Chetty, Harsha Bhardwaj, G. Pradeep Kumar, T. Devanand, C. S. Aswin Sekhar, Tuba Aktürk, Ilayda Kiyi, Görsev Yener, Bahar Güntekin, Justin Joseph, Chinnakkaruppan Adaikkan
Publikováno v:
Alzheimer’s Research & Therapy, Vol 16, Iss 1, Pp 1-14 (2024)
Abstract Background Biomarkers of Alzheimer’s disease (AD) and mild cognitive impairment (MCI, or prodromal AD) are highly significant for early diagnosis, clinical trials and treatment outcome evaluations. Electroencephalography (EEG), being nonin
Externí odkaz:
https://doaj.org/article/50769060e9df4694806ad44ea0b99db4
Publikováno v:
Tongxin xuebao, Vol 45, Pp 144-152 (2024)
To address the limitations in design methods and the scarcity of construction parameters for mutual orthogonal complementary sequence set (MOCSS), a construction method for MOCSS based on paraunitary (PU) matrices was proposed. The new concept of coe
Externí odkaz:
https://doaj.org/article/febbadf94f3d4f20a9ccb6dbcaf31642
Autor:
Mounira Laabidi, Ridha Boualleguee
Publikováno v:
International Journal of Electronics and Telecommunications, Vol vol. 70, Iss No 4 (2024)
Filter Bank Multi-Carrier with Offset Quadrature Amplitude symbol mapping called as FBMC/OQAM is presented as a potential successor of Orthogonal Frequency Division Multiplexing OFDM. Combined with Multiple-Input Multiple- Output (MIMO), MIMO-FBMC/OQ
Externí odkaz:
https://doaj.org/article/fc3d250539dd4e44b482a0d31a0abb0c
Autor:
Charles Ekene Chika
Publikováno v:
Journal of Medical Physics, Vol 49, Iss 2, Pp 155-166 (2024)
Purpose: The purpose of this study was to develop a simple flexible method for accurate estimation of stopping power ratio (SPR) and mean excitation energy (I) using relative electron density (ρe). Materials and Methods: The model was formulated usi
Externí odkaz:
https://doaj.org/article/311ed3cacfaa4443afdf20e59109b914
Publikováno v:
ETRI Journal, Vol 46, Iss 2, Pp 227-237 (2024)
This study proposes a novel, conditionally applied neural network technique to reduce the overall peak-to-average power ratio (PAPR) of an orthogonal frequency division multiplexing (OFDM) system while maintaining an acceptable bit error rate (BER) l
Externí odkaz:
https://doaj.org/article/ff81bdc4c3e040758ced1a1ec42dbdb3
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
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