SIGNAL RECEIVING DEVICE LINEARLY FREQUENCY MODULATED FROM MOBILE TRANSMITTER Russian patent published in 2003 - IPC

FIELD: radio engineering; data reception over communication channels, mainly on mobile objects. SUBSTANCE: receiving device has first, second, third, fourth, and fifth mixers 1, 11, 21, 14, and 19, respectively, first, second, and third heterodynes 6, 13, and 17, respectively, first, second, and third intermediate- frequency amplifiers 2, 12, and 22, respectively, correlators unit 3, demodulator 4, standard signal generator 7, synchronizer 8, first and second filters 15 and 20, respectively, phase detector 16, switching unit 19, automatic frequency control unit 9, data receiver 5, and automatic standard signal envelope length control unit 23. EFFECT: enhanced precision of signal maximum time position at output of correlators unit 3. 1 cl, 2 dwg