Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Wanzhong Su"'
Publikováno v:
Buildings, Vol 14, Iss 7, p 2034 (2024)
In recent years, applying slag micro-powder as a substitute for cement in preparing alkali-activated slag cement stabilized sand (AASCSS) mixtures has become increasingly widespread. In the severe cold regions of Xinjiang, multi-objective optimizatio
Externí odkaz:
https://doaj.org/article/cf3ecae26cfa44268bfa3f6dc4eb08f5
Publikováno v:
Sensors, Vol 23, Iss 13, p 5997 (2023)
In the process of the modulation recognition of underwater acoustic communication signals, the multipath effect seriously interferes with the signal characteristics, reducing modulation recognition accuracy. The existing methods passively improve the
Externí odkaz:
https://doaj.org/article/bb9a2831b1de4ba7b7f26ac2a3079e1d
Autor:
Shuai Liu, Haoran Guo, Zhiwen Qian, Jie Li, Xiaojian Wang, Wanzhong Sun, Lihua Zhang, Anmin Zhang
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 5, p 952 (2023)
Autonomous underwater vehicles (AUVs) are important tools for exploring and studying the ocean. To improve the stealthiness of AUV positioning, a new type of inverted ultra-short baseline (i-USBL) positioning system is proposed in this paper. The sys
Externí odkaz:
https://doaj.org/article/e26bf3a0619b4022a6e0fde31227700c
Publikováno v:
Sensors, Vol 23, Iss 7, p 3511 (2023)
To estimate the direction of arrival (DOA) of a linear frequency modulation (LFM) signal in a low signal-to-noise ratio (SNR) hydroacoustic environment by a small aperture array, a novel deconvolved beamforming method based on fractional Fourier doma
Externí odkaz:
https://doaj.org/article/a00cc2fa747b4fab837cfbe2d1a461a3
Publikováno v:
IEEE Access, Vol 8, Pp 47580-47595 (2020)
Window queries are basic but important query tasks in geospatial databases. The Hilbert curve has good clustering properties, which can be used to effectively improve the execution efficiency of window queries. The ideal goal of a window query using
Externí odkaz:
https://doaj.org/article/784e1218532e4bf0b22d47c906c57915