Tracking fluctuating targets in extremely heterogeneous clutter using amplitude information

The Journal of Engineering

Miaomiao Cheng¹  Bangsheng Zhuo¹  Xiangjun Peng¹  Di Yao¹  Feng Li¹ 

[1] School of Information and Electronics, Beijing Institute of Technology;

关键词: dynamic programming;    radar clutter;    integration;    maximum likelihood estimation;    radar detection;    radar tracking;    object detection;    target tracking;    fluctuating targets;    extremely heterogeneous clutter;    amplitude information;    radar fluctuating target detection;    dynamic programming – track;    chi-square distribution;    log-likelihood ratio;    llr;    double integral;    single integral;    numerical integration;    simplified integral;    original integral;   

DOI  :  10.1049/joe.2019.0722

来源: DOAJ

【 摘 要 】

This study analyses the radar fluctuating target detection in G(0)-distributed clutter using dynamic programming – track before detect (DP-TBD) algorithm. G(0)-distributed clutter is often used to fit the complex circumstances. The authors use chi-square distribution to model the fluctuating targets. The log-likelihood ratio (LLR) is taken as the scoring function of DP-TBD. This study makes contribution to simplify the double integral into single integral in LLR and applies numerical integration with variable resolution to evaluating the LLR. Simulations prove the simplified integral equals the original integral and using LLR in DP-TBD is able to improve the performance of detecting fluctuating targets in G(0)-distributed clutter.

【 授权许可】

Unknown