Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Xumin Zhu"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract To alleviate the contradiction in healthcare resources, the Chinese government formally established the framework of a hierarchical medical system in 2015, which contains the following brief generalities: " separate treatment of emergencies
Externí odkaz:
https://doaj.org/article/83e7a0e0e2b04f7f8cad50300d1b6a85
Publikováno v:
SCIENTIA SINICA Chimica. 43:163-170
以KNO 3 为矿化剂, 用水热法制备了3D分级结构Bi 2 WO 6 微球, 通过XRD、SEM、BET对产物进行了表征. 探讨了3D分级结构Bi 2 WO 6 微球可能的形成机理. 以罗丹明B为模型污染物, 研究了合成产物的光催
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 47:1325-1336
A fundamental issue in knowledge-aided space-time adaptive processing (KA-STAP) is to determine the degree of accuracy of the a~priori knowledge and the optimal emphasis that should be placed on it. In KA-STAP, the a priori knowledge consists usually
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems
To reduce the need for training data or for accurate prior knowledge of the clutter statistics in space-time adaptive processing (STAP), we consider high resolution angle-Doppler imaging by processing each range bin of interest independently. Specifi
Publikováno v:
IEEE Transactions on Signal Processing. 56:2598-2602
In space-time adaptive processing (STAP), the clutter covariance matrix is routinely estimated from secondary ldquotarget-freerdquo data. Because this type of data is, more often than not, rather scarce, the so-obtained estimates of the clutter covar
Publikováno v:
Materials Letters. 95:190-192
h-MoO3 and α-MoO3 films were successfully fabricated on glass substrates by two ways: ion exchange and chemical deposition. The as-synthesized products were characterized through X-ray diffraction (XRD) and scanning electron microscopy (SEM). The op
Publikováno v:
2009 International Waveform Diversity and Design Conference.
We consider using multi-input multi-output (MIMO) radar to improve the ground moving target indication (GMTI) performance, especially for slowly moving targets, for airborne surveillance systems. The increased virtual aperture afforded by MIMO radar
Publikováno v:
MIMO radar angle-doppler imaging via iterative space-time adaptive processing.
Publikováno v:
2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop.
To reduce the need of secondary data and/or accurate prior knowledge of the clutter statistics in space-time adaptive processing (STAP), we present herein a user parameter-free and secondary data-free fully automatic weighted least squares based iter
Publikováno v:
2008 IEEE Radar Conference.
A multi-input multi-output (MIMO) radar system, unlike a standard phased-array radar, can transmit multiple probing signals that are correlated or uncorrelated with each other. This waveform diversity offered by the MIMO radar is the main reason for