A high frequency anharmonic oscillator provides a broad band chaotic oscillation with a noise-like spectra. The oscillator output signal is suitable for modulation by data providing for improved secure communication. The chaotic oscillator is based upon a forced second order Duffing equation that is tolerant of delay in the feedback path for high frequency operation.
Keywords: signal processing, oscillator, broadband
International Class: H03B29/00, H03F3/45, H03G7/00, H03B29/00