Kết quả tìm kiếm - SHEN Feng

In this paper,a GNSS anti-jamming technology of UAV for geological hazard survey is designed to realize adaptive interference suppression without vacuum loss under strong jamming environment. This method utilizes the space-time adaptive anti- jamming antenna to process BOC signals, where the stee...

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A GNSS-based UAV anti-multipath technology for geological hazard monitoring is proposed to ensure the positioning capability of UAVs in complex environments. This method designs a non-coherent phase detector utilizing the S-curve shaping based on cosine phase Binary Offset Carrier (BOC) signal. Comp...

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Accurate position information is a key element to ensure the efficient operation of inspection UAVs, but due to the widespread distribution of transmission and distribution lines, the traditional GNSS-based UAV positioning method is very likely to be obstructed and difficult to provide stable positi...

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Hyperspectral images contain rich information of ground objects and the technology is widely used in many occasions. Since each classification model has different classification performance, effectively utilizing the difference in the performance of each classification model is an essential step...

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Cooperative localization technology can improve the overall positioning accuracy of the system and nodes through spatial and temporal cooperation among multiple nodes, and it has a broad application demand in the areas that cannot be covered by the inherent navigation and positioning facilities....

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Dynamic equilibrium is critical aspect of fruit quality and ripeness. Dynamic equilibrium is determined according to sinusoid stress-strain. Pear fruit makes marked effects on dynamic modulus and phase position in different pre-load, active power and ripeness. Test shows that in same frequency pre-l...

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Duck hepatitis B virus (DHBV) shares many basic characteristics with hepatitis B virus (HBV) and is an attractive model for vaccine development. In this study, DHBV DNA vaccines were designed to express envelope and capsid fusion proteins to enhance the breadth of immune response in ducks. Attenuate...

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