The operating system geofìsica using vibrator source which provides a composite sweep sìsmico

摘要

"Operating system geofu00ecsica using source of vibrator su00ecsmico which provides a composite sweep".A system of geophysical exploration using a single source (30) which emits signals through multiple octaves.The source is driven by a scanning signal having two or more of scans.And one of them covers the lower octave (10) while the other scans covering the remainder of the bandwidth.The signals covering the lower portion are reduced in the case of a scan which varies linearly with time in proportion to the square root of the ratio between the rate of scan signals cobrindThe end most high and the rate of scan signals covering the lower end. The signals are transmitted simultaneously.Due to the scanning of the same power spectrum is transmitted as a sine wave sweep that extends over the whole band of frequ00b3u00eancia,While reducing the peak power and the displacement of the lower frequ00b3u00eancias irradiator required to maintain a spectrum plan. The size of the equipment can be reduced.