A novel combiner-equalizer structure of blind Spatial Diversity Equalizer (SDE) is proposed for blind reception of multi-antenna system under frequency-selective fading channels.Three key components

i.e.frequency waveform combiner

equalizer and soft information recycler are jointly processed under this new structure.An iterative BLOCK-SUMPLE algorithm is designed first to calculate weight values for multi-antenna signals

with frequency waveform combining implemented afterwards.In order to compensate and optimize the equivalent synthesis channel

soft symbols from the equalizer output are fed back and functioned as a new reference to adjust the weight phases.Compared with traditional blind SDEs

no prior symbol information is required during the implementation.The proposed structure also improves diversity combining performance and reduces the design complexity of equalizer at the same time.Simulation results show that this new structure effectively improves the reception capability under fading channels and it performs closely to the optimal Spatial Diversity Equalizers.