displaced phaseの例文

• A study on synthetic aperture sonar movement compensation based on displaced phase center algorithm
• The dissertation also discusses a kind of improving algorithm of dpca : adaptive displaced phase center antenna ( adpca ) , indicate the adpca can be used in distributed space - borne sar
• In addition to the conventional techniques such as low sidelobe antennas and displaced phased center antenna ( dpca ) , there has been great interest in space - time adaptive processing ( stap ) because it can suppress clutter effectively and improve the detection performance of airborne phased array radar evidently
• The paper overviews the history of moving targets detection and imaging based on sar , the methods based on doppler filtering , doppler rate filtering , parameter estimation and multichannel sar imaging are discussed in detail . the paper focuses on the two methods used in spaceborne sar which are displaced phase center antenna and along - track interferometric
• 3 . after studying deeply the multi - antenna sar mtdi based on displaced phase center antenna ( dpca ) , a new double - antenna method is proposed which remedies the shortcomings of conventional ways . the method need n ' t meet the constraint condition that conventional ways must meet and can suppress ground clutter effectively and detect moving target
• This dissertation mainly researches the displaced phase center antenna ( dpca ) technique in the new system , and the contributions are calculated as following : 1 . the doppler history is analyzed for the spaceborne bistatic sar , doppler center frequency and doppler fm rate computational methods are studied . summing up is done for the methods of moving target detection and imaging