摘要: A fundamental limit for the sensitivity of an Interferometric Gravitational Wave detector in low frequency region is imposed by effect environmental mass density fluctuations. These fluctuations generate stochastic gravitational fields which couple directly to apparatus test masses, bypassing seismic isolation systems. In this paper results a preliminary investigation on possibility reducing kind noise are reported. We focus feasibility off-line subtraction. approach monitored appropriate set measurement devices. The resulting signals combined linearly with output interferometer obtain partial cancellation noise.