Pedestrian detection and tracking is necessary for autonomous vehicles traffic management. This paper presents a novel solution to pedestrian urban scenarios based on Doppler LiDAR that records both the position velocity of targets. The workflow consists two stages. In stage, input point cloud first segmented form clusters, frame by frame. A subsequent multiple separation process introduced fur...

The condition of locomotive bearings, which are essential components in trains, is crucial to train safety. The Doppler effect significantly distorts acoustic signals during high movement speeds, substantially increasing the difficulty of monitoring locomotive bearings online. In this study, a new Doppler transient model based on the acoustic theory and the Laplace wavelet is presented for the ...

In this paper, we propose a Compressed Sensing (CS) based method under the unknown sparse degree to track ground moving targets using Pulse-Doppler (PD) radar. We use the sparsity of delay-Doppler plane in the process of disposing PD radar echo to set up a sparse signal model in each pulse interval. At the state prediction stage, we can get the predicted values of target states by dynamic equat...

| The existence of doppler has always been an inconvenience for digital communications. Several schemes have been proposed to deal with the problem, often involving some kind of doppler tracking and/or compensation algorithm. All these schemes do, however, increase the complexity of the receiver. Furthermore, the need for exactness in the doppler tracking scheme adds an extra dimension to the s...

This study investigates the effects of incorporating Doppler velocity measurements directly into track association and maintenance parts for single and multiple target tracking unit in a multi function phased array radar (MFPAR). Since Doppler velocity is the major discriminant of clutter from a desired target, the measurement set has been expanded from range, azimuth and elevation angles to in...

assessment of ventricular function in patients with heart failure symptoms. Recent advancements in echocardiography permit measurement of myocar­ dial mechanics through the use of strain imaging. Current techniques are either Doppler based or rely on speckle tracking in two dimensions, but each has limitations. Accordingly, three­dimensional wall motion tracking (3D­WMT) offers rapid acqui ­ si...

Frictional characteristics of a small aerostatic linear bearing are accurately evaluated by means of a method, in which the force acting on the moving part of the bearing is measured as the inertial force. An optical interferometer is newly developed to measure the Doppler shift frequency of the laser light reflected on the small moving part. From the measured time-varying Doppler shift frequen...