ios – Sudden peaks in digital camera rework readings in ARKit

I’ve a easy view with a background ARSession operating. The ARSession ought to maintain monitor of the digital camera location (person location).

Present code:

struct TrackingPage: View {    
    // State variables
    @State var session = ARSession()
    @State var sessionDelegate: ARDelegate = ARDelegate()
    
    // Constructor
    init() {
        let configuration = ARWorldTrackingConfiguration()
        configuration.worldAlignment = .gravityAndHeading
        configuration.planeDetection = .horizontal
        self.session.delegate = self.sessionDelegate
        self.session.run(configuration)
    }

    // View physique
    var physique: some View {
        VStack {
            Textual content("monitoring")
        }
    }
}

class ARDelegate : NSObject, ARSessionDelegate {
    func session(_ session: ARSession, didUpdate body: ARFrame) {
        change body.digital camera.trackingState {
            case .regular:
                print(body.timestamp, ",", body.digital camera.rework.columns.3.x, ",", body.digital camera.rework.columns.3.z)
            default:
                print(body.timestamp, ",", body.digital camera.trackingState)
        }
    }
}

The code works as anticipated nevertheless I observed that some peaks happen.
The next graph reveals the x and z coordinates adjustments all through the run:

What may very well be the trigger for such peaks?