Noise- and coupling-tuned signal processor with arrays of nonlinear
dynamic elements
    4.
    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

    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。