METHOD OF PROCESSING OF ADDITIVE MIXTURE OF QUASI-HARMONIC SIGNAL AND GAUSSIAN NOISE

摘要

FIELD: underwater acoustics. SUBSTANCE: invention relates to development of passive detectors of quasi-harmonic signal against background of Gaussian noise in infrasonic and sound frequency ranges. Proposed method of processing of additive mixture of quasi- harmonic signal and Gaussian noise is based on analysis of parameters of distribution of intervals between hull crossings. With formation of similarity functions of density of distribution of probabilities of intervals between null crossings are multiplied by functions of density of distribution of power of processes over intervals between null crossings of mixture and noise correspondingly which increases noise immunity of detector. Method is recommended for implementation in automatic detectors. EFFECT: increased noise immunity of passive detectors.