FIELD: radio engineering.
SUBSTANCE: invention may be used for confidential information transfer with the use of complicated symbols with phase-shift keying. Coherent radio line contains discrete messages source, encoder, two modulators, two high-frequency generators, transmitters 1 and 2, transmitting antenna, pseudorandom sequence generator on transmitting side and receiving antenna, receiver, synchronous detectors 1, 2 and 3, block search by frequency, reference voltage allocation unit, phase inverter by +30°, phase inverter by -30°, subtracter 1 and 2, phase inverter by +90°, decoder, recording and message analysing unit.
EFFECT: transmitted discrete information protection from unauthorised access of strangers by creating noise curtain from noise-type signals.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| COHERENT RADIO LINE | 2005 |
|
RU2286026C1 |
| METHOD FOR FINDING VESSELS IN DISTRESS | 2007 |
|
RU2346290C1 |
| METHOD FOR DETECTION OF VESSELS IN DISTRESS | 2012 |
|
RU2514131C1 |
| METHOD OF PREVENTING ACT OF TERRORISM ABOARD AIRCRAFT AND SYSTEM TO THIS EFFECT | 2007 |
|
RU2349511C1 |
| ELEVATION-TIME DOPPLER METHOD FOR DETERMINING COORDINATES OF EMERGENCY OBJECT | 2006 |
|
RU2302645C1 |
| WALKING STICK FOR VISUALLY IMPAIRED PERSON | 2011 |
|
RU2473324C2 |
| DEVICE FOR DETECTING COUNTER-TRANSPORT MINES | 2004 |
|
RU2273885C1 |
| SOS-SYSTEM FOR HIGHWAYS | 2005 |
|
RU2282897C1 |
| MODE OF DETECTION LIVING OBJECTS AND AN ARRANGEMENT FOR ITS EXECUTION | 2006 |
|
RU2313108C2 |
| SYSTEM FOR DETECTION AND DETERMINATION OF THE POSITION OF A MAN IN DISTRESS ON WATER | 2004 |
|
RU2276038C1 |
