Zobrazeno 1 - 10
of 7 255
pro vyhledávání: '"Average power"'
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
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:
Weifeng Tan, Yisen Wang, Peining Chen, Rongzhuo Chen, Siqi Zhu, Hao Yin, Zhen Li, Zhenqiang Chen, Shibo Dai
Publikováno v:
Functional Diamond, Vol 4, Iss 1 (2024)
Realizing high average power nanosecond pulsed single longitudinal mode laser sources around 1.6 μm are of intense interest for applications as diverse as range finding, remote sensing, and environmental monitoring. Herein, we first demonstrate a hi
Externí odkaz:
https://doaj.org/article/4eaf2e6ebd95460893ba92b67e248d0f
Autor:
Bo Ren, Hongxiang Chang, Can Li, Tao Wang, Kaikai Jin, Jiayi Zhang, Kun Guo, Rongtao Su, Jinyong Leng, Pu Zhou
Publikováno v:
Frontiers of Optoelectronics, Vol 17, Iss 1, Pp 1-10 (2024)
Abstract In this paper, we report a coherent beam combining (CBC) system that involves two thulium-doped all-polarization maintaining (PM) fiber chirped pulse amplifiers. Through phase-locking the two channels via a fiber stretcher by using the stoch
Externí odkaz:
https://doaj.org/article/02c4b308b0c648b58cf9e41b3ef7a0bc
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
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Autor:
Zhiliang Li, Xiaoqi Yang, Zhi Gao, Jingxuan Wang, Yuli Xue, Jianglong Wang, Qian Cao, Zhihai Ding, Shufang Wang
Publikováno v:
Journal of Materiomics, Vol 10, Iss 2, Pp 366-376 (2024)
Bi(Te, Se)-based compounds have attracted lots of attention for nearly two centuries as one of the most successful commercial thermoelectric (TE) materials due to their high performance at near room temperature. Compared with 3D bulks, 2D thin films
Externí odkaz:
https://doaj.org/article/622ea4bf8d754354ac422fc66868e46e
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