Huanyao Dai received his Ph.D. degree from the National University of Defense Technology (NUDT), China in 2010, and he is currently a professor at the State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System. He has published 26 peer-reviewed journal and transaction full papers in English. His research interests include radar signal and data processing, chaff/jamming/ electromagnetic attack, airborne/spaceborne/shipborne radar, digital array antenna, radar polarimetric and target discrimination/classification/recognition in polarization domain.Xuesong Wang was born in 1972. He is a professor at the National University of Defense Technology (NUDT), China. His research interests include signal processing, radar polarimetry, automatic target recognition, precision guidance technology and spatial information perception. He has published more than 150 papers.Shunping Xiao was born in 1964. He received B.E. and Ph.D. degrees from the School of Electronic Science and Engineering, National University of Defense Technology (NUDT), China, in 1986 and 1995 respectively. Dr. Xiao is a professor at NUDT. His current research interests include polarimetric radar information processing and target recognition. He is a senior member of the CIE. Hong Xie was born in 1977. He received B.E. and Ph.D. degrees in Electronic Engineering from the National University of Defense Technology NUDT, China, in 1999 and 2004, respectively. Dr. Xie is an associate professor at NUDT. His current research interests include radar signal processing, radar polarimetry, and target recognition.

• Introduction.- Connotation and Representation of Spatial Polarization Characteristic.- Spatial Polarization Characteristics of Aperture Antenna.- Spatial Polarization Characteristics of Phased Array.- Antenna Spatial Polarization Characteristics Measurement and Calibration.- Scattering Matrix Measurement Method Based on Spatial Polarization Characteristics of Antenna.- Blanketing Jamming Countermeasure Method Based on Spatial Polarization Characteristics of Antenna.

Huanyao Dai received his Ph.D. degree from the National University of Defense Technology (NUDT), China in 2010, and he is currently a professor at the State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System. He has published 26 peer-reviewed journal and transaction full papers in English. His research interests include radar signal and data processing, chaff/jamming/ electromagnetic attack, airborne/spaceborne/shipborne radar, digital array antenna, radar polarimetric and target discrimination/classification/recognition in polarization domain.Xuesong Wang was born in 1972. He is a professor at the National University of Defense Technology (NUDT), China. His research interests include signal processing, radar polarimetry, automatic target recognition, precision guidance technology and spatial information perception. He has published more than 150 papers.Shunping Xiao was born in 1964. He received B.E. and Ph.D. degrees from the School of Electronic Science and Engineering, National University of Defense Technology (NUDT), China, in 1986 and 1995 respectively. Dr. Xiao is a professor at NUDT. His current research interests include polarimetric radar information processing and target recognition. He is a senior member of the CIE. Hong Xie was born in 1977. He received B.E. and Ph.D. degrees in Electronic Engineering from the National University of Defense Technology NUDT, China, in 1999 and 2004, respectively. Dr. Xie is an associate professor at NUDT. His current research interests include radar signal processing, radar polarimetry, and target recognition.

• Introduction.- Connotation and Representation of Spatial Polarization Characteristic.- Spatial Polarization Characteristics of Aperture Antenna.- Spatial Polarization Characteristics of Phased Array.- Antenna Spatial Polarization Characteristics Measurement and Calibration.- Scattering Matrix Measurement Method Based on Spatial Polarization Characteristics of Antenna.- Blanketing Jamming Countermeasure Method Based on Spatial Polarization Characteristics of Antenna.

Huanyao Dai received his Ph.D. degree from the National University of Defense Technology (NUDT), China in 2010, and he is currently a professor at the State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System. He has published 26 peer-reviewed journal and transaction full papers in English. His research interests include radar signal and data processing, chaff/jamming/ electromagnetic attack, airborne/spaceborne/shipborne radar, digital array antenna, radar polarimetric and target discrimination/classification/recognition in polarization domain.Xuesong Wang was born in 1972. He is a professor at the National University of Defense Technology (NUDT), China. His research interests include signal processing, radar polarimetry, automatic target recognition, precision guidance technology and spatial information perception. He has published more than 150 papers.Shunping Xiao was born in 1964. He received B.E. and Ph.D. degrees from the School of Electronic Science and Engineering, National University of Defense Technology (NUDT), China, in 1986 and 1995 respectively. Dr. Xiao is a professor at NUDT. His current research interests include polarimetric radar information processing and target recognition. He is a senior member of the CIE. Hong Xie was born in 1977. He received B.E. and Ph.D. degrees in Electronic Engineering from the National University of Defense Technology NUDT, China, in 1999 and 2004, respectively. Dr. Xie is an associate professor at NUDT. His current research interests include radar signal processing, radar polarimetry, and target recognition.

• Introduction.- Connotation and Representation of Spatial Polarization Characteristic.- Spatial Polarization Characteristics of Aperture Antenna.- Spatial Polarization Characteristics of Phased Array.- Antenna Spatial Polarization Characteristics Measurement and Calibration.- Scattering Matrix Measurement Method Based on Spatial Polarization Characteristics of Antenna.- Blanketing Jamming Countermeasure Method Based on Spatial Polarization Characteristics of Antenna.