www.gusucode.com > phased 案例源码 matlab代码程序 > phased/ViewTrajectoriesAirborneRadarAndGroundTargetExample.m
%% View Tracks of Airborne Radar and Ground Target % Visualize the tracks of an airborne radar and a ground vehicle % target. The airborne radar is carried by a drone flying at 5 km altitude. %% % Create the drone radar and ground vehicle using |phased.Platform| System objects. Set the update % rate to 0.1 s. updateRate = 0.1; drone = phased.Platform(... 'InitialPosition',[100;1000;5000], ... 'Velocity',[400;0;0]); vehicle = phased.Platform('MotionModel','Acceleration',... 'InitialPosition',[5000.0;3500.0;0.0],... 'InitialVelocity',[40;5;0],'Acceleration',[0.1;0.1;0]); %% % Create the |phased.ScenarioViewer| System object(TM). Show the radar beam % and annotate the tracks with position, speed, and, altitude. sSV = phased.ScenarioViewer('BeamRange',8000.0,'BeamWidth',2,'UpdateRate',updateRate,... 'PlatformNames',{'Drone Radar','Vehicle'},'ShowPosition',true,... 'ShowSpeed',true,'ShowAltitude',true,'ShowLegend',true,'Title','Vehicle Tracking Radar'); %% % Run the scenario. At each step, compute the angle to the target. Then, use % that angle to steer the radar beam toward the target. for i = 1:100 [radar_pos,radar_vel] = step(drone,updateRate); [tgt_pos,tgt_vel] = step(vehicle,updateRate); [rng,ang] = rangeangle(tgt_pos,radar_pos); sSV.BeamSteering = ang; step(sSV,radar_pos,radar_vel,tgt_pos,tgt_vel); pause(.1); end