The simulation results show that after shifting the input frequency to a small one, the output power spectrum peaks of the bistable system are strongly enhanced at this frequency. 仿真結果表明,經(jīng)頻移后產(chǎn)生的小頻率信號通過(guò)雙穩態(tài)系統的協(xié)同作用形成的輸出信號,其信號頻率處的功率譜譜峰有很大的提高。