AGIMM tracking filter algorithm based on manoeuvring feature correction

Considering the fast speed and strong manoeuvring of small offshore targets, traditional filtering algorithms cannot effectively track the filtering due to the unstable grid centre of weak manoeuvring target and slow tracking convergence of strong manoeuvring target. To overcome this problem, an adaptive grid interaction multiple model (AGIMM) tracking filter algorithm based on manoeuvring feature correction was developed. The modified algorithm detects the target manoeuvring according to the residual information of the filter, while the model structure can be adjusted under different manoeuvring conditions. Monte Carlo simulation shows that the AGIMM algorithm based on manoeuvring feature correction can improve the calculation accuracy by 35% and reduce the calculation time by 18%.