FIELD: physics; acoustics.
SUBSTANCE: sonar signal simulator comprises a signal storage and playback unit with magnetic media and stationary magnetic heads, a noise generator, a receiving path with antenna, amplifier and controlled low-pass filter. Low-pass filter is connected to signal recording magnetic head, signal playback path with antenna, power amplifier connected to high-pass filter output and stationary signal playback magnetic head connected to one of signal mixer inputs via amplifier. Signal playback path also incorporates a supplementary unit with a number of electrically coupled magnetic heads rotating as regards to magnetic media. Supplementary unit output is connected to one of the inputs of signal mixer. Noise generator is connected to the other input of the mixer via controlled low-pass filter. The mixer output is connected to the high-pass filter input.
EFFECT: improved reliability of simulation of sonar signals from moving lengthy sea objects.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ACTIVE SOMAR COUNTERMEASURE DEVICE AIMED INTERFERENCE CIRCUITRY | 1972 |
|
SU1840762A1 |
| TRANSPORTING DEVICE | 1970 |
|
SU1840628A1 |
| DEVICE FOR REPRODUCING FROM MAGNETIC RECORD MEDIUM | 0 |
|
SU1277202A1 |
| DEVICE FOR MONITORING OPERABILITY OF RECEIVING AND TRANSMITTING AND RECORDING CHANNELS OF HYDROACOUSTICAL STATIONS | 0 |
|
SU700931A1 |
| APPARATUS FOR AUTOMATIC SELECTION OF MAGNETIC HEADS | 0 |
|
SU1420614A1 |
| SIMULATOR OF PRIMARY AND SECONDARY ACOUSTIC FIELDS OF MOVING UNDERWATER TARGET | 1970 |
|
SU1840763A1 |
| METHOD FOR DETECTION OF TARGETS FROM ACCIDENTAL REVERBERATION DISTURBANCES | 2008 |
|
RU2366973C1 |
| 0 |
|
SU238183A1 | |
| DEVICE FOR MEASURING PARAMETERS OF COMBINED MAGNETIC HEAD STACK | 0 |
|
SU1116456A1 |
| RECEIVING-AMPLIFYING TRACK OF SONAR | 1970 |
|
SU1840779A1 |
