关键词: 反坦克, 反应装甲, 复合探测, 电容探测, 磁探测

Abstract: For the problem of accurate distance measurement of tank reactive armor in complex environment with low extension trajectory，a tank target detection method based on capacitance/magnetic combination is proposed， in which the distance is accurately determined through the capacitance detection，and the ferromagnetic target is identified through the magnetic detection. The composite system is used to solve the interference problem of the complex background environment of the low extension trajectory. The principle of capacitance detection is theoretically analyzed. The electrode distribution of the dual-electrode capacitance detection model is optimized through COMSOL simulation，which effectively improves the accuracy of capacitance detection. The calculation formula of tank magnetic field is theoretically deduced，and the change curve of the magnetic field intensity around the tank target is simulated. The tunnel magnetoresistance is used to design a magnetic detection circuit，which is verified by experiment. A capacitive/magnetic composite target detection and recognition method based on the state machine method is proposed，and the multiple feature quantities are used to improve the target recognition accuracy of fuze. The experimental verification of prototype was made. The result shows that the composite detection method can realize the accurate recognition of ferromagnetic target and meet the fixed distance requirements. At the same time，for the problem of insufficient detection range of the latest reactive armors，a single-electrode detection model is proposed，which can effectively increase the detection range to 2 m through simulation analysis.

Key words: anti-tank, reactivearmor, compositedetection, capacitancedetection, magneticdetection