Method for rapid tracking target based on radar trace points

Abstract

The invention discloses a method for rapid tracking a target based on radar trace points, and belongs to the field of vehicle tracking of intelligent traffic. The method transmits position information of a target vehicle based on a vehicle-mounted radar in a trace point manner. All first-time incoming trace points after start-up of the radar are taken as track initiation, and a wave gate corresponding to each trace point is calculated. An incoming trace point at the next moment matches the wave gate of the previous moment, the track initiation is successful if matching is successful, and the trace points saved at the previous time are clear away if the matching is not successful. If a plurality of the trace points are disposed in a certain wave gate, agglomeration processing needs to be performed on the trace points; and, if a certain trace point falls into the different wave gates respectively, each corresponding wave gate processes the trace point. Through design of a relationship between the trace points, the rapid track initiation is achieved. The scheme further designs an improved data association algorithm, and the objects of improvement of the correct rate of associations and reduction of the computational complexity are achieved.

Description

technical field [0001] The invention relates to the field of vehicle tracking radar data processing, especially in the process of multi-target vehicle tracking, which realizes the fast start of the target from tracking, and can quickly and accurately associate the data between the point track and the track, and belongs to the field of intelligent transportation vehicle tracking . Background technique [0002] Target tracking technology originated in the 1950s. After decades of research and development, both in the military field and people's daily life, target tracking technology has played a very wide range of uses and achieved fruitful results. Radar data processing technology is the basis of target tracking, the most important of which is the data association between radar echo point trace and track, the quality of data association directly affects the quality of target tracking. [0003] In terms of basic methods, the point track and track data interconnection problem o...

AI Technical Summary

Problems solved by technology

The advantage of the nearest neighbor method is that the calculation is simple, but the disadvantage is that in a multi-echo environment, the candidate echo closest to the predicted position of the target (especially the target with a close distance or crossing tracks) is not necessarily the real echo of the target. Missing or mistracking of the target occurs

The probabilistic data interconnection algorithm and the joint probabilistic data interconnection algorithm are more accurate in tracking, but the amount of calculation is large, which is not conducive to the real-time performance of tracking

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