7Waters W M, Jarrett B R. Bandpass signal sampling and coherent det-ection[J]. IEEE Trans. on AES, 1982, 18 (4) :731 -736.
8Roome S J. Analysis of quadrature detectors using complex envelope notation [ J ]. IEEE Proceedings F, 1989, 136 (2) :95 - 100.
9Xiang Jiabin, Ma Xiaoyan. A Fully-digital Processing Approach for Radar IF Signal Direct Quadrature Sampling [C]// 1996 Proceedings, CIE International Conference, 1996:413 -416.
10Younis M, Fischer C, Wiesbeck W. Digital beamforming in SAR system[ J ]. IEEE Transactions on Geoscience and Remote Sensing, 2003, 41 (71) : 1735 - 1739.