Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for cascading sweeps for a seismic vibrator










Image Number 2 for United States Patent #5410517.

A method for cascading or linking seismic vibrator sweeps to form a cascaded sweep sequence. According to the method, a first cascaded sweep sequence is generated containing N sweep segments linked end-to-end. The N sweep segments are substantially identical, except that the initial phase angle of each sweep segment within the sweep sequence is progressively rotated by a constant phase increment of about 360/N degrees. A second cascaded sweep sequence is generated consisting of (i) N consecutive sweep segments linked end-to-end which correspond to said first cascaded sweep sequence and (ii) an additional sweep segment linked to the N consecutive sweep segments which is positioned and phased so as to substantially suppress harmonic ghosts during correlation. One of these cascaded sweep sequences is used for the vibrator sweep sequence and the other is used for the correlation reference sequence. Any type of sweeps may be cascaded or linked according to the method, and any amount of padding (listen time) may be inserted between the individual sweep segments.








 
 
  Recently Added Patents
Method of generating integrated circuit model
Herbicide composition having improved effectiveness, method of preparation and use
Array substrate including thin film transistor and method of fabricating the same
Optoelectronic devices and a method for producing the same
Method and system for remotely testing a wireless device
Circuit breakers
X-ray imaging
  Randomly Featured Patents
Contents linkage information delivery system
Vehicle body platform
Multi-dimensional images system for digital image input and output
Device and method for balancing loads between different paths in a computer system
Non-malodorous hair perming method
Shower curtain holder
Filling member
Polyester elastomeric particles
Boat steering system
Impatiens plant named `HGI-1036-1`