Automotive radar target tracking by Kalman filtering
Automotive radars have been introduced successfully into the consumer market with sensors in the 24- and 77-GHz domain [1]. In order to increase traffic safety, an application for detecting and tracking Vulnerable Road Users (VRU) and vehicles in front of the car is currently under development. By using a single 24-GHz radar sensor, target parameters like range, radial velocity and azimuth angle are measured even in multiple target scenarios. This paper describes the current implementation progress of a signal processing scheme for target tracking by Kalman filtering and presents tracking results using real measurement data. The work is developed under the FP7 EC funded project ARTRAC [2].
Belief rule-based methodology and Particle filter for radar target tracking
With the rapid development of information technology in inland waterway, radar was widely used to track the ship running, in order to ensure the safe and efficient shipping industry development, as well as to avoid a ship collision causing unnecessary economic losses. For the problem of radar target tracking data associated, a method of data association with radar data was proposed, which was based on radar target course and speed. By this method, the target error or loss problem was solved when the target density was large and used belief rule-based (BRB) methodology to verify the reliability of this method. Real target points obtained by this method had been filtered through particle filter. And then the radar target tracking was achieved. This method has a good target tracking results, verified by Monte Carlo simulations.
Compact integrated slot array antennas for the 79 GHz automotive band
This paper presents two compact slot array antennas for the 79 GHz automotive band integrated into a 28 um thick benzocyclobutene (BCB) substrate attached to a 325 um thick 5–20 Ωcm bulk resistivity silicon wafer. The two antennas are a transmit (TX) 1×8 slot array antenna with a size of 1×23 mm and a receive (RX) 8×8 slot array antenna with a size of 15×23 mm. Promising performance has been measured with the TX and RX sub-array antennas (gain >4 dBi) with good matching to 50 Ω (RL>10 dB) in the frequency range 70–90 GHz. By using a metal cavity, mounted on the back of the antenna, parallel plate modes could be reduced and the gain could also be increased by 2dB. The measured and the simulated results are consistent.