As satellite traffic grows,almost all of current satellites use double-polarization operating mode for full utilization of space frepuency resources,and,therefor,the polarization isolution and the polarization matchin...As satellite traffic grows,almost all of current satellites use double-polarization operating mode for full utilization of space frepuency resources,and,therefor,the polarization isolution and the polarization matching directly influences the puality of satellite TV.This paper makes certain theoretical approach to polarization puestions of satellite TV,and gives several practical methods of polarization matching and adjustment.展开更多
Performance indexes of satellite receiver are in a decisive position with a reception system.Eb/No. threshold is an important index for testing digital satellite receiver,but there is no relevant instrument for its me...Performance indexes of satellite receiver are in a decisive position with a reception system.Eb/No. threshold is an important index for testing digital satellite receiver,but there is no relevant instrument for its measurement.The authors introduce two methods for measuring Eb/No with spectrum analyzer,which are found on the basis of existing conditions.展开更多
文摘As satellite traffic grows,almost all of current satellites use double-polarization operating mode for full utilization of space frepuency resources,and,therefor,the polarization isolution and the polarization matching directly influences the puality of satellite TV.This paper makes certain theoretical approach to polarization puestions of satellite TV,and gives several practical methods of polarization matching and adjustment.
文摘Performance indexes of satellite receiver are in a decisive position with a reception system.Eb/No. threshold is an important index for testing digital satellite receiver,but there is no relevant instrument for its measurement.The authors introduce two methods for measuring Eb/No with spectrum analyzer,which are found on the basis of existing conditions.
