Xin Xie, Radar Technology Research Institute, Beijing Institute of Technology, Beijing, China, China; Yunkai Deng, Chongqing Innovation Center, Beijing Institute of Technology, Chongqing, China, China; Zihang Jiang, Xiaoxiao Li, Beijing Building Research Institute Co., Ltd. of CSCEC, Beijing, China, China; Weiming Tian, Radar Technology Research Institute, Beijing Institute of Technology, Beijing, China, China