OBC Signal Fidelity

A27 OBC SIGNAL FIDELITY Abstract 1 A simple definition of signal fidelity is “the accuracy of the reproduction of the true ground motion by the complete recording system”. This definition while simple is also quite restrictive and moves beyond the concept of “vector fidelity”. OBC signal fidelity can be compromised in many ways. A few of the more common ways are: temporal and spatial sampling recording filters spiking due to cable leakage or telemetry errors geophone resonances and noise due to gimbal mechanisms geophone noise due to cable interactions geophone coupling with the sea bottom and environmental noise (bottom currents