RADIO-HYDROACOUSTIC BUOY ON MICROCONTROLLERS WITH BASE DATA OF REFERENCE SIGNALS Russian patent published in 2020 - IPC B63B22/00 G01S15/00 

FIELD: acoustics.

SUBSTANCE: invention relates to hydro acoustics, namely to devices for recording acoustic signals, and can be used to detect, locate and classify moving underwater objects. Radio-hydroacoustic buoy on microcontrollers with reference data base of reference signals comprises series-connected hydroacoustic antenna (hydrophone), preliminary amplifier, radio transmitting path and receiving-transmitting radio antenna, self-destruct device, measuring unit on microcontroller, in which control and digital filtration functions are performed, which is connected to the output of the preamplifier, and a radio transmission path unit (RTP), including n RTP, each of which is connected to the measurement unit through a serial interface; at that, each RTP includes a memory chip, a microcontroller which realizes control and digital-to-analogue conversion functions, and a radio transmitter which transmits noise signals from the target to the carrier. Principal difference of radio-hydroacoustic buoy on microcontrollers with database of reference signals is that in composition of measuring unit on microcontroller there additionally introduced database (DB) of reference signals, implemented based on a memory chip, used for primary classification of noise sources and associated with a microcontroller of the measurement unit via the SPI interface. Technical result of invention consists in creation of new radio-hydroacoustic buoy on microcontrollers with database of reference signals.

EFFECT: realization of the set task enables to achieve the following technical result: reduction of probability of false alarm by spectral analysis of signal and interference mixture, comparison of obtained spectrum with reference signal spectra stored in database; increasing the radius of action of the buoy and, accordingly, the probability of detecting the target owing to the fact that spectral analysis of the signal and interference mixture is carried out continuously; increased time and stealthiness of operation of buoy.

1 cl, 3 dwg