Patent ID: 7684281

Claim:
A method for combining recorded signals of a pressure sensor and a particle motion sensor located in a towed marine seismic streamer to improve signal to streamer vibration noise ratio in the particle motion sensor signal, comprising: converting seismic signals recorded in the towed marine seismic streamer into a particle motion sensor signal, the seismic signals representative of characteristics of subsurface earth formations and acquired by deployment of a plurality of pressure sensors and particle motion sensors overlying an area of the earth's subsurface to be evaluated, the sensors generating at least one of an electrical and optical signal in response to seismic energy, by the following: calculating at least a portion of a particle motion sensor signal from the recorded pressure sensor signal; and merging the calculated at least a portion of the particle motion sensor signal with the recorded particle motion sensor signal to generate a particle motion sensor signal in which signal to streamer vibration noise ratio is substantially improved in at least a lower frequency range thereof, useful for imaging the earth's subsurface.