YE Jin, XU Feng, YANG Juan, et al. A Composite Measurement IMM-EKF Data Fusion Algorithm Based on Multi-sensor[J]. Acta Electronica Sinica, 2020, 48(12): 2326-2330.
YE Jin, XU Feng, YANG Juan, et al. A Composite Measurement IMM-EKF Data Fusion Algorithm Based on Multi-sensor[J]. Acta Electronica Sinica, 2020, 48(12): 2326-2330. DOI: 10.3969/j.issn.0372-2112.2020.12.006.
In order to improve the target tracking accuracy of multi-sensor system as well as solve the problem of long processing time due to the multiple sensors
a composite measurement IMM-EKF (Interacting Multiple Model-Extended Kalman Filter) data fusion algorithm is proposed. According to the measurement accuracy of each sensor
the algorithm weights and fuses the measurement of all sensors with respect to the same target
and performs the IMM-EKF filtering process on the merged measurement. The composite measurement IMM-EKF algorithm is compared with the weighted IMM-EKF algorithm and the extended dimension IMM-EKF algorithm in tracking accuracy and processing time through simulation and experiment data processing. The result shows that the extended dimension IMM-EKF algorithm has the best tracking accuracy while the composite measurement IMM-EKF algorithm needs the shortest processing time. The adapted occasions of the three fusion algorithms are given in the end.