Abstract:

In order to solve the dependence on enemy intercept equipment and the limitation of the evaluation method in the evaluation of radar signal radio frequency (RF) stealth performance, a radar signal waveform RF stealth performance evaluation method is proposed based on the characteristic of selfradiation signals. Based on the structure of RF radiation signals, this method analyzes the period and duty cycle of the signal radiated by the radiation source, uses Hilbert transform to derive the instantaneous frequency, phase and waveform in a signal cycle, and normalizes the signal parameters. Then a quantitative calculation method for RF stealth in waveform domain is proposed. Compared with the simulation of waveform and phase-code of radar signal, this method can accurately reflect the performance of radar signal RF stealth.