propagate

Propagate emissions in tracking scenario

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Syntax

propEmissions = propagate(sc,emissions)
propEmissions = propagate(sc,emissions,'HasOcclusion',tfOcclusion)

Description

propEmissions = propagate(sc,emissions) returns propagated emissions that are a combination of the input emissions and the reflections of these input emissions from the platforms in the tracking scenario sc.

example

propEmissions = propagate(sc,emissions,'HasOcclusion',tfOcclusion) specifies whether the radar channel models occlusion or not. By default, tfOcclusion is set to true.

Examples

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Open Live Script

Create a tracking scenario and add two platforms. Set the position of each platform and add an emitter.

ts = trackingScenario('UpdateRate',1);
plat1 = platform(ts);
plat1.Trajectory.Position = [0,0,0];
emitter1 = radarEmitter(1,'UpdateRate',1);
plat1.Emitters = emitter1;
plat2 = platform(ts);
plat2.Trajectory.Position = [100,0,0];
emitter2 = radarEmitter(2,'UpdateRate',1);
plat2.Emitters = emitter2;

Advance the tracking scenario, generate emissions, and obtain propagated emissions.

advance(ts);
emtx = emit(ts); % Get emissions
emprop = propagate(ts, emtx, 'HasOcclusion', true)
emprop=3×1 cell array
    {1×1 radarEmission}
    {1×1 radarEmission}
    {1×1 radarEmission}

The last emission was emitted by emitter 1 and reflected from platform 2.

disp(emprop{end})
  radarEmission with properties:

              PlatformID: 2
            EmitterIndex: 1
          OriginPosition: [100 0 0]
          OriginVelocity: [0 0 0]
             Orientation: [1×1 quaternion]
             FieldOfView: [180 180]
         CenterFrequency: 300000000
               Bandwidth: 3000000
            WaveformType: 0
          ProcessingGain: 0
        PropagationRange: 100.0313
    PropagationRangeRate: 0
                    EIRP: 38.0071
                     RCS: 10

Input Arguments

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Tracking scenario, specified as a trackingScenario object.

Emissions in the tracking scenario, specified as a cell array of emission objects, such as radarEmission and sonarEmission objects. You can obtain emissions from a tracking scenario using the emit function.

Indicate HasOcculusion status, specified as true or false.

Output Arguments

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Propagated emissions in the tracking scenario, specified as a cell array of emission objects, such as radarEmission and sonarEmission objects. The propagated emissions contain the source emissions and the emissions reflected from the platforms.

Version History

Introduced in R2020a

See Also

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