| 摘要 |
FIELD: radio-engineering, communication.SUBSTANCE: under method of the space survey based on parameters change of the scanning signal during neighbouring periods, signals with parameters of the previous period are received, they are assumed as signals of repeater jamming and are used to receive features of this jamming that can be contained in set of the received signals with changed parameters. The result under first option is solved also such that as feature the angular coordinates of start and end of the spatial signals package created out of signals of the previous period. The result under first option is solved also such that as feature the angular coordinates of center of the spatial signals package created out of signals of the previous period. Result under second option is solved such that under the method of space survey based on the parameters change of the scanning signals of the neighbouring periods keep value of the carrying frequency and spectrum of the compressed signal. The result under second option is solved such that during use of the frequency modulation the frequency sequence is changed upon keeping of the frequency band. The result under second option is solved such that during use of signals with phase manipulation the law of phase manipulation is changed.EFFECT: identification during the space survey of the repeater jamming at distances after jammer, and assurance of possibility of MTI system operation.6 cl |
