FIELD: physics, radio.
SUBSTANCE: disclosed method relates to radar measurement and is meant for detecting aircraft trajectory instabilities in form of sailplane yawing. The invention is based on studying the dynamics of the extent of Doppler maps made in successive moments in time. For this purpose, digitised values of quadrature components of reflected signals are put into an data array from which partial quadrature arrays are subsequently extracted to create Doppler maps. Presence of flight trajectory instabilities in form of yawing is indicated by change in the structure of the formed Doppler maps of the aerial object, which is caused by change in angular velocity turning about the radar station during sailplane yawing. The fast Fourier transformation procedure over the partial sampling of reflection characteristics of the object is the method for creating Doppler maps.
EFFECT: high reliability of detecting flight trajectory instabilities of aircraft with small heading angle.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF EXTERNAL RADAR DETECTION OF TRAJECTORY FLIGHT INSTABILITIES OF AIRCRAFT USING STRUCTURE OF ITS PULSE RESPONSE CHARACTERISTIC | 2014 |
|
RU2562060C1 |
| METHOD FOR IDENTIFICATION OF PARAMETRES OF TRAJECTORY INSTABILITIES OF SMALL-SIZED FLYING OBJECT IN FORM OF RADIAL ACCELERATION OF MOTION FOR ACCOMPANIMENT MODE WITH HELP OF SIGNALS WITH PER PULSE CARRIER FREQUENCY TUNING | 2009 |
|
RU2392640C1 |
| METHOD FOR CHOOSING INTERVAL POSITION OF INVERSE SYNTHESISING OF APERTURE AT AVAILABILITY OF TRAJECTORY INSTABILITIES OF FLIGHT OF AIR OBJECT WITH POSSIBILITY OF EVALUATING ANGULAR SPEED OF ITS ROTATION RELATIVE TO RADAR STATION | 2009 |
|
RU2409823C1 |
| METHOD OF SELECTING INTERVAL FOR INVERSE SYNTHESISING WITH CALCULATED ANGULAR VELOCITY OF TARGET RELATIVE RADAR SET | 2007 |
|
RU2360267C1 |
| RADAR DEVICE FOR CLASSIFYING VIBRATING AIRCRAFT WITH FLIGHT PATH INSTABILITIES IN SURFACE LAYERS | 2009 |
|
RU2407031C1 |
| METHOD FOR EXPERIMENTAL VERIFICATION OF INFORMATION AND IDENTIFICATION CAPABILITIES OF DOPPLER PORTRAITS OF AERIAL OBJECTS | 2014 |
|
RU2571957C1 |
| METHOD FOR CONSTRUCTION OF TWO-DIMENSIONAL RADAR IMAGE OF AIR TARGET ACCORDING TO TRAJECTORY INSTABILITIES OF ITS FLIGHT | 2000 |
|
RU2180445C2 |
| DEVICE TO IDENTIFY AIR RADAR OBSERVATION OBJECT WITH SELECTION OF INTERVAL FOR MAXIMISATION INTERVAL OF ITS TURN AT TRAJECTORY INSTABILITY OF MOTION | 2010 |
|
RU2427001C1 |
| RADAR METHOD OF DETECTING LAW OF VARIATION OF ANGULAR VELOCITY OF TURNING OF TRACKED AERIAL OBJECT BASED ON SUCCESSIVELY RECEIVED SIGNAL REFLECTIONS WITH CARRIER FREQUENCY ADJUSTMENT | 2013 |
|
RU2525829C1 |
| METHOD OF FALSE AIR TARGET IDENTIFICATION | 2007 |
|
RU2348053C1 |
