Chinese Academy of Sciences

China Academy of Railway Sciences Corporation Limited

Railway Engineering Research Institute of China Academy of Railway Sciences Corporation Limited

Locomotive & Car Research Institute of China Academy of Railway Sciences

Beijing Zongheng Electro-mechanical Development Co.

Cr Technological Development Corporation

Weidong Yu

Wei Wang

Yi Zhang

Yu Wang

Lei Guo

Ning Li

Zhimin Zhang

Xuwei Li

Yunkai Deng

Yuqing Zeng

Xuesong Chai

Liying Xu

Yashi Zhou

Qingchao Zhao

Jiang Ni

Chunle Wang

Fengjun Zhao

A method and a device for separating echo signals of STWE SAR in elevation are provided. The method includes that: aliasing echo signals of multiple sub-swaths are received; for a target sub-swath of the multiple sub-swaths, multiple sub-beams associated with the target sub-swath are generated, the multiple sub-beams pointing to different directions of the target sub-swath respectively, and a null of each of the multiple sub-beams being used for deep nulling suppression on echo signals of sub-swaths except the target sub-swath; and the aliasing echo signals are processed based on the multiple sub-beams and multiple nulls corresponding to the multiple sub-beams to generate a target echo signal of the target sub-swath.

Method and device for separating echo signals of space-time waveform encoding synthetic aperture radar in elevation

A continuous measurement method for a wheel/rail vertical force includes: continuously arranging classic wheel/rail vertical force unit measurement areas in a form of 'shear force+support force' on rails, where adjacent unit measurement areas share an end shear force measurement, and each two adjacent unit measurement areas form a unique compound measurement area; obtaining the wheel/rail vertical force when a wheelset passes the unit measurement areas other than the transition area of shear force measurement by using the classic unit measurement areas; obtaining the wheel/rail vertical force when the wheelset passes the transition area of the shared shear force measurement by using the unique compound measurement area; and combining all wheel/rail vertical forces on the unit measurement areas and the compound measurement areas to obtain a long distance fully continuous wheel/rail vertical force of the wheelset.

Fully continuous ground measurement method and system for wheel rail vertical force

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Beijing, China

Weidong Yu