| 摘要 |
PCT No. PCT/GB90/00617 Sec. 371 Date Nov. 10, 1992 Sec. 102(e) Date Nov. 10, 1992 PCT Filed Apr. 20, 1990 PCT Pub. No. WO90/02447 PCT Pub. Date Mar. 8, 1990.A signal processing system, especially for use in vibration control, wherein noise-free signals inductive of the timing of a primary source and of the timing of at least one interfering secondary source of periodic vibrations are provided as inputs, together with a vibration input signal derived from a sensor sampling the vibrations, and wherein the signals are processed to produce an output representative of interference free vibration of the primary source.
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