CAJ | 학술논문

金属目标探测在应用领域中受环境噪声干扰大，目标金属壳体反射信号和噪声直耦信号叠加，导致金属目标探测准确度提高困难。提出一种基于自适应噪声抵消降噪算法和能量检测的金属目标探测方法。借鉴相位检波设计能量检测算法最终完成针对金属外壳小车的目标探测系统设计。外场系统测试和仿真实验分析得出目标在各种距离和速度下通过探测样机的探测特性测试结果，测试结果展示了系统具有较好的探测性能，探测反射信号与距离的关系跟磁场衰减的理论值高度吻合，达到预期的检测效果。
금속목표탐측재응용영역중수배경조성간우대，목표금속각체반사신호화조성직우신호첩가，도치금속목표탐측준학도제고곤난。제출일충기우자괄응조성저소강조산법화능량검측적금속목표탐측방법。차감상위검파설계능량검측산법최종완성침대금속외각소차적목표탐측계통설계。외장계통측시화방진실험분석득출목표재각충거리화속도하통과탐측양궤적탐측특성측시결과，측시결과전시료계통구유교호적탐측성능，탐측반사신호여거리적관계근자장쇠감적이론치고도문합，체도예기적검측효과。
According to the application environment of metal target, the interference noise was strong, and metal reflection signal added to the direct coupling noise, resulting in difficult to improve the accuracy of metal target detection. An im-proved metal target detection method based on adaptive direct coupled noise reduction and energy detection algorithm was proposed.The metal target detection system for the car was designed completely. Experiments and simulations were imple-mented with different distance and different speed for the metal car and detection device. The simulation results shows that the system has good detection performance and the relationship between the detected reflected signal and distance is in ac-cordance with theoretical value of magnetic field attenuation. It meets to the predicted detection effect.