| 摘要 |
A method of modifying the radiated wave fields of a first non-resonant implosive marine source comprises firing, at a known time relative to the firing of the first source, a second non-resonant implosive marine source at a depth different from that of the first source, the depth of the second source being selected such that reflections of the wave fields of the first and second sources from the air-sea interface above the sources will at least partially cancel each other, thereby to decrease the effect of the reflection of the wave field from the air-sea interface upon the radiated wave field of the first source. Preferably three or more implosive marine sources are fired each at a different depth to produce the desired modification, each implosive marine source being identical and comprising one or more water guns. |
