雷达和电子支援(Electronic Support Measurement,简称ESM)传感器的航迹关联是异类多传感器数据融合研究方面的重要前提。以往对于关联判别函数的选取,多采用χ2分布,这使得在某些实际应用中,通常会出现计算量大,确定门限阈值复杂的问...雷达和电子支援(Electronic Support Measurement,简称ESM)传感器的航迹关联是异类多传感器数据融合研究方面的重要前提。以往对于关联判别函数的选取,多采用χ2分布,这使得在某些实际应用中,通常会出现计算量大,确定门限阈值复杂的问题。基于正态分布关联判别函数的航迹关联双门限算法,在门限阈值的选取上直接采用正态分布中的分位数概念,避免了χ2分布中选取阈值的复杂过程。通过仿真试验,验证了决策规则的第一类风险和第二类风险,表明该方法能有效地判决航迹的关联问题。展开更多
In order to improve the infrared detection and discrimination ability of the smart munition to the dynamic armor target under the complex background,the multi-line array infrared detection system is established based ...In order to improve the infrared detection and discrimination ability of the smart munition to the dynamic armor target under the complex background,the multi-line array infrared detection system is established based on the combination of the single unit infrared detector.The surface dimension features of ground armored targets are identified by size calculating solution algorithm.The signal response value and the value of size calculating are identified by the method of fuzzy recognition to make the fuzzy classification judgment for armored target.According to the characteristics of the target signal,a custom threshold de-noising function is proposed to solve the problem of signal preprocessing.The multi-line array infrared detection can complete the scanning detection in a large area in a short time with the characteristics of smart munition in the steady-state scanning stage.The method solves the disadvantages of wide scanning interval and low detection probability of single unit infrared detection.By reducing the scanning interval,the number of random rendezvous in the infrared feature area of the upper surface is increased,the accuracy of the size calculating is guaranteed.The experiments results show that in the fuzzy recognition method,the size calculating is introduced as the feature operator,which can improve the recognition ability of the ground armor target with different shape size.展开更多
文摘雷达和电子支援(Electronic Support Measurement,简称ESM)传感器的航迹关联是异类多传感器数据融合研究方面的重要前提。以往对于关联判别函数的选取,多采用χ2分布,这使得在某些实际应用中,通常会出现计算量大,确定门限阈值复杂的问题。基于正态分布关联判别函数的航迹关联双门限算法,在门限阈值的选取上直接采用正态分布中的分位数概念,避免了χ2分布中选取阈值的复杂过程。通过仿真试验,验证了决策规则的第一类风险和第二类风险,表明该方法能有效地判决航迹的关联问题。
基金This work was supported by the National Natural Science Foundation of China(No.11804263)the Program for Innovative Science and Research Team of Xi’an Technological University.
文摘In order to improve the infrared detection and discrimination ability of the smart munition to the dynamic armor target under the complex background,the multi-line array infrared detection system is established based on the combination of the single unit infrared detector.The surface dimension features of ground armored targets are identified by size calculating solution algorithm.The signal response value and the value of size calculating are identified by the method of fuzzy recognition to make the fuzzy classification judgment for armored target.According to the characteristics of the target signal,a custom threshold de-noising function is proposed to solve the problem of signal preprocessing.The multi-line array infrared detection can complete the scanning detection in a large area in a short time with the characteristics of smart munition in the steady-state scanning stage.The method solves the disadvantages of wide scanning interval and low detection probability of single unit infrared detection.By reducing the scanning interval,the number of random rendezvous in the infrared feature area of the upper surface is increased,the accuracy of the size calculating is guaranteed.The experiments results show that in the fuzzy recognition method,the size calculating is introduced as the feature operator,which can improve the recognition ability of the ground armor target with different shape size.