FIELD: radar ranging.
SUBSTANCE: invention relates to radar ranging and can be used as a signal correlation device in a correlation-phase direction finder. Technical result is achieved due to use of controlled phase shifter and phase self-tuning of frequency of fork heterodyne, wherein phase automatic self-tuning of fork heterodyne frequency allows compensating phase raids of processed signals at input of multiplier, due to which frequency of the signal at the output of the multiplier corresponds to the resonant frequency of the narrow-band filter, which enables to reduce the pass band of said filter. Narrow-band filter bandwidth narrowing reduces noise error of phase difference of processed signals.
EFFECT: high accuracy of measuring phase difference of processed signals from dynamic radiation sources.
1 cl, 1 dwg
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Authors
Dates
2019-10-25—Published
2019-04-11—Filed