全波形反演,一纬,二维
Frequency-domain full-waveform tomography for visco-acoustic media.
! #
! # Program FWT2D is a massively parallel code for distributed memory platform
! # which performs frequency-domain full-waveform inversion of seismic data [10,11,12,13].
! # The program is more specifically designed for wide-angle or global offset data !!!!!!!!!更特别设计
! # (that is, for any acquisition system involving dense wide-aperture acquisitions
! # and for which sources share a significant range of receivers spanning over large
! # offsets). The inversion looks for the P-wave velocity only. However, heterogeneous
! # density and attenuation can be provided for the forward modeling.
! # The inversion relies on a classic iterative steepest descent algorithm [1,2]. Iterations !!!!!!反演依赖于经典的迭代最速下降法
! # are performed in a non linear way which means that the final model at
; Should work on: Allegro 16.3 and above
; Fully Tested on: Allegro 16.5
;
; Purpose:
; 1/ ASU_start - loads user interface form.
; 2/ ASU_copySilkShapesToAutoSilk
; - Copies silk shape objects from Board and Package Geometry layers to AutoSilk.
; - Checks silk to pin and via soldermask spacings.
; 3/ ASU_checkSpacings
; - Check text and shapes for DRCs over soldermask on pins, vias, shapes and holes.
;
; Usage: To run the routine within Allegro type: "silkutils".
; Default values may be loaded by creating a file named AutoSilkUtils.cfg in your Allegro site text, home or working folder.