Multidomain Denoise (MDD)
Multidomain Denoise (MDD) is a PRIMA module to perform noise attenuation by time-frequency trimming in a multidomain style
For this purpose, first, a number of neighboring shot gathers are saved in the memory.
Then, between two given horizons, every trace is divided into a number of overlapping windows. Every window is then tapered and transformed into the frequency domain, where its amplitude spectrum will be calculated. The frequency range is also divided into overlapping bands. For each band, the average amplitude of its frequency samples will be calculated and saved. For every frequency band of every time window of every trace, its average amplitude will be compared against the reference amplitude of local traces, which belong to adjacent shots, receivers, CDP’s and channels simultaneously. This reference amplitude can be either