Patent ID: 6977867
Filing Date: 2005-12-20
Classification: G01V

Abstract:
1. A method of recording seismic survey data comprising the steps of: a. Generating a terrestrially transmitted seismic survey event; b. Detecting seismic reflections of said event by a plurality of physically spaced sensors, said plurality including one or more first sensors and one or more second sensors; c. Generating by said sensors, respective first and second sensor signals corresponding to said seismic reflections; d. Transmitting said first and second sensor signals along respective first and second signal channels to respective first and second signal processing modules; and, e. Transmitting first and second digital signals corresponding to said seismic reflections by said first and second signal processing modules to a signal recording system, said first and second signal processing modules providing selectively variable digital signal transmission frequency for transmitting said first and second digital signals at a digital data frequency that is selected from a predetermined frequency spectrum as a function of physical properties respective to a digital signal carrier between said first and second signal processing modules.