sweep signal for combining a non-impulsive marine source output with an impulsive marine source output

摘要

The parameters of a sweep signal that controls the operation of a non-impulsive marine source can be set. Parameter configuration may include selecting a raster signal stop frequency, setting a ramp signal bottleneck, and adjusting an initial ramp phase. The parameters may be configured such that a magnitude of an amplitude spectrum of a combined output of an impulsive marine source and the non-impulsive marine source is greater than or equal to a magnitude of an amplitude spectrum of an impulsive marine source output. at frequencies below the stopping frequency. A non-impulsive marine source controller may be programmed with the sweep signal with parameters configured to control the non-impulsive marine source.