Hybrid-domain high-resolution parabolic Radon transform and its application to demultiple

There are two alternative choices for either efficiency or resolution in today's high-resolution Radon transform algorithms. Time-domain high resolution Radon algorithm confronts serious efficiency degeneration while maintains much higher resolution than any other methods. On the contrary, frequency-domain high-resolution Radon algorithm generally leads to efficient computation at the cost of more smearing and artifacts in Radon domain. To overcome these problems some methods concerning hybrid-domain computation were developed which utilized time-variant sparse weight for frequency domain Radon transform. We propose a new method of the hybrid-domain computation named hybrid-domain high-resolution parabolic Radon transform and use it to suppress multiples for prestack seismic data. Routines for hybrid-domain high-resolution parabolic Radon transform and prestack data demultiple are provided respectively in our paper. Numerical tests of modeling and field data confirm ideal resolution and very high efficiency of our method.