Ghost attenuation,the key step of broadband processing,is a very important step in data-processing of deep towing flat streamer.Therefore,this paper analyzes the features of deep towing flat cable data,derives time distance curve equation of ghost and,on such a basis,introduces the basic principle of the linear least square inversion in Radon domain method for ghost attenuation.First,no ghost data is obtained by the least square method in Radon domain,then the primary wave operator is used in inverse transform,so as to realize the attenuation of ghost.The processing effect of model and actual data shows that,after ghost attenuation,the frequency notches of deep towing flat cable data can be compensated,and the effective frequency bandwidth can be broadened,thus achieving the effect of broadband processing.
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