[8] [8] ENG K Y,YUE O C. High-order intermodulation effects in digital satellite channels[J]. IEEE Transactions on Aerospace and Electronic Systems, 1981,AES-17(3):438-445.

[9] [9] AL-MUDHAFAR A,HARTNAGEL H L. Passive intermodulation effects on bit error rates in communication satellites[C]// The 7th International Workshop on Multipactor, Corona and Passive Intermodulation in Space RF Hardware. Valencia, Spain: [s.n.], 2011.