METHOD FOR DELAYING RADIO PULSE SIGNALS Russian patent published in 2000 - IPC

FIELD: pulse signal processing. SUBSTANCE: method includes shaping desired train from standard pulses and radio-frequency information pulse at two carrier frequencies of which one equals information pulse frequency; applying this train to specimen incorporating quadrupole centers with multilevel spin system; viewing echo signals, and varying time intervals between exciting pulses; used as specimen is material incorporating quadrupole centers with four-level spin system; specimen selection and transition excitation are chosen depending on information pulse frequency; additional radio-frequency pulses at carrier frequency equal to third transition frequency are also applied. The latter are first to be applied and radio-frequency information pulse, the last. EFFECT: enlarged time delay control range. 2 dwg