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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||343/7A ; 343/77|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 9 인용 특허 : 5|
A circuit for a pulse Doppler radar receiver in which a measuring signal for determining the mean frequency of disturbing low frequency received clutter signals is obtained from which there is determined a control signal for operating a circuit that precedes the clutter filter and serves to displace the clutter spectrum into the blocking ranges of the fixed clutter filter particularly for radar devices having a non-constantly scanning antenna and wherein the circuit for determining the mean change in the clutter phase is in parallel with a delay device w...
A circuit arrangement for a receiver of a pulse-Doppler-radar with a fixed clutter filter and with a pre-connected device for the displacement of the clutter spectrum and with a circuit for the determination of the mean change of the phase to prevent interfering low frequency received clutter signals during consecutive radar periods for producing a control signal for displacement of the clutter spectrum, in particular for radar devices with a non-constantly scanning antenna, characterized in that the received clutter signals are supplied by way of two pa...