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17 条记录 (耗时 0.023 秒)

    Noise assisted signal processor with nonlinearly coupled arrays of nonlinear dynamic elements
    11.
    发明授权
    Noise assisted signal processor with nonlinearly coupled arrays of nonlinear dynamic elements 失效
    噪声辅助信号处理器，具有非线性动态元件的非线性耦合阵列

    公开(公告)号：US6020782A

    公开(公告)日：2000-02-01

    申请号：US893907

    申请日：1997-07-11

    申请人： Terence R. Albert ,  Adi R. Bulsara ,  Gabor Schmera ,  Mario Inchiosa

    发明人： Terence R. Albert ,  Adi R. Bulsara ,  Gabor Schmera ,  Mario Inchiosa

    IPC分类号： G06N7/08 ,  H03K5/00

    CPC分类号： G06N7/08

    摘要： A signal processor utilizes a globally nonlinearly coupled array of nonlinear dynamic elements. In one embodiment of the invention, these elements take the form of bistable overdamped oscillators. The processor exploits the phenomenon of stochastic resonance to amplify a weak periodic signal embedded in noise. In this signal processor, a system or plurality of nonlinearly coupled overdamped oscillators is subject to a weak periodic signal embedded in a noise background. For communication or detection applications, this weak signal component is the signal of interest. A reference oscillator is chosen from the plurality of overdamped oscillators, and is given a time scale for relaxation that is longer than the remaining oscillators. The output of the reference oscillator is analyzed for signal processing purposes in response to the signal and noise. A detailed numerical analysis of the full dynamics of the bistable element represented by the reference oscillator has shown that the signal-to-noise ratio (SNR) of the entire processor system reaches a maximum at a critical noise variance value. By using a number of overdamped oscillators working together, an enhancement of SNR can be achieved over that of the use of a single oscillator.

    摘要翻译： 信号处理器利用非线性动态元件的全局非线性耦合阵列。 在本发明的一个实施例中，这些元件采用双稳态过阻尼振荡器的形式。 处理器利用随机共振现象来放大嵌入在噪声中的弱周期信号。 在该信号处理器中，系统或多个非线性耦合的过阻尼振荡器经受嵌入在噪声背景中的弱周期信号。 对于通信或检测应用，该弱信号分量是感兴趣的信号。 从多个过阻尼振荡器中选择参考振荡器，并给出比其余振荡器长的用于弛豫的时标。 分析参考振荡器的输出以响应于信号和噪声的信号处理目的。 由参考振荡器表示的双稳态元件的完整动力学的详细数值分析表明，整个处理器系统的信噪比（SNR）在临界噪声方差值下达到最大值。 通过使用多个过阻尼振荡器一起工作，可以实现比使用单个振荡器更高的SNR。

    Morphable logic gates using logical stochastic resonance in an engineered gene network
    13.
    发明授权
    Morphable logic gates using logical stochastic resonance in an engineered gene network 有权
    在工程基因网络中使用逻辑随机共振的变形逻辑门

    公开(公告)号：US09043158B1

    公开(公告)日：2015-05-26

    申请号：US13370154

    申请日：2012-02-09

    申请人： William Lawrence Ditto ,  Adi R. Bulsara ,  Anna Dari ,  Behnam Kia

    发明人： William Lawrence Ditto ,  Adi R. Bulsara ,  Anna Dari ,  Behnam Kia

    IPC分类号： G06N3/12 ,  G06F19/12

    CPC分类号： G06N3/123 ,  G06F19/12

    摘要： A method for providing a biological logic gate comprising the following steps: subjecting a bistable autoregulatory gene network (GRN) to a noisy background; identifying adjustable parameters of the GRN; using logical stochastic resonance to determine values of the GRN parameters which result in the GRN performing different logic gate functions; and setting the parameter values of the GRN such that the GRN performs a first logic gate function.

    摘要翻译： 一种用于提供生物逻辑门的方法，包括以下步骤：使双稳态自调控基因网络（GRN）经受噪声背景; 识别GRN的可调参数; 使用逻辑随机共振来确定导致GRN执行不同逻辑门功能的GRN参数的值; 并设置GRN的参数值使得GRN执行第一逻辑门功能。

    Noise- and coupling-tuned signal processor with arrays of nonlinear dynamic elements
    15.
    发明授权
    Noise- and coupling-tuned signal processor with arrays of nonlinear dynamic elements 失效
    噪声和耦合调谐信号处理器，具有非线性动态元件阵列

    公开(公告)号：US5789961A

    公开(公告)日：1998-08-04

    申请号：US671909

    申请日：1996-06-28

    申请人： Adi R. Bulsara ,  William L. Ditto ,  Mario E. Inchiosa ,  John F. Lindner ,  Brian K. Meadows

    发明人： Adi R. Bulsara ,  William L. Ditto ,  Mario E. Inchiosa ,  John F. Lindner ,  Brian K. Meadows

    IPC分类号： G06G7/02 ,  G06G7/12

    CPC分类号： G06G7/02

    摘要： The invention exploits the phenomenon of stochastic resonance in a nonlinear dynamic system to enhance the system's response to a weak periodic signal locally corrupted by background noise. The invention is designed to enhance the signal-to-noise ratio (SNR) in the system's output power spectrum at the periodic signal's frequency. This technique utilizes an array of nonlinear dynamic elements whose individual outputs are specifically coupled to other array elements. The coupling is found to substantially enhance the output SNR over what would be expected from a signal processor based upon a single such element. This principle has the potential to substantially enhance the performance of arrays of nonlinear devices; in fact, the nonlinear array can be expected to yield an output SNR that is very close to that obtainable by an array of ideal linear devices, so that the coupling actually "linearizes" the nonlinear system. The output SNR enhancement is found to correlate with enhanced signal detection performance.

    摘要翻译： 本发明利用了非线性动态系统中随机共振的现象，以增强系统对由背景噪声局部损坏的弱周期信号的响应。 本发明被设计成在周期信号频率下增强系统输出功率谱中的信噪比（SNR）。 该技术利用非线性动态元件阵列，其各自的输出特别耦合到其他阵列元件。 发现耦合基于单个这样的元件基本上增强了从信号处理器预期的输出SNR。 这个原理有可能大大提高非线性器件阵列的性能; 事实上，非线性阵列可以预期产生非常接近由理想线性器件阵列获得的输出SNR，使得耦合实际上“线性化”非线性系统。 发现输出SNR增强与增强的信号检测性能相关。

    Stochastic resonance detector for weak signals
    17.
    发明授权
    Stochastic resonance detector for weak signals 失效
    弱信号的随机共振检测器

    公开(公告)号：US6008642A

    公开(公告)日：1999-12-28

    申请号：US917655

    申请日：1997-08-25

    申请人： Adi R. Bulsara ,  Mario E. Inchiosa ,  Luca Gammaitoni ,  Frank E. Gordon

    发明人： Adi R. Bulsara ,  Mario E. Inchiosa ,  Luca Gammaitoni ,  Frank E. Gordon

    IPC分类号： G01R33/035 ,  G01R27/28

    CPC分类号： G01R33/0354

    摘要： A stochastic resonator signal detector comprises a multi-stable nonlinear device for coupling to an input signal and a control signal coupled to the multi-stable nonlinear device for varying asymmetry among stable states of the multi-stable nonlinear device. The interaction of the input signal with the control signal in the multi-stable nonlinear device generates an output signal having an amplitude responsive to the input signal amplitude and a frequency range that comprises harmonics of products of the control signal and the input signal.

    摘要翻译： 随机谐振器信号检测器包括用于耦合到输入信号的多稳定非线性装置和耦合到多稳定非线性装置的控制信号，用于改变多稳定非线性装置的稳定状态之间的不对称性。 输入信号与多稳定非线性装置中的控制信号的相互作用产生响应于输入信号幅度的幅度和包括控制信号和输入信号的乘积的谐波的频率范围的输出信号。