CAJ | 학술논문

为了提高免耕播种机的自动化程度,设计了一款新的具有自主导航和路径规划功能的免耕播种机. 该播种机能够很好地估算出入射信号的个数和方向,克服了传统定位精度低的缺点,可以有效解决密集信号环境中多个辐射源的高分辨率、高精度测向定位问题. 为了验证免耕播种机的性能,对使用 DOA 估计信号后的播种机进行了性能测试. 测试发现:其播种误差要明显小于单纯使用最小二乘法和双曲线测量法,播种合格率最高达到了98.7%,变异系数最低为1.35%,播种的精确性和稳定性较高. 通过对比传统播种机和本文设计播种机的播种时间,本文设计的播种机播种时间有所缩短,播种效率有了大幅度的提高,免耕播种性能好,可以在自动化播种作业中进行推广.
위료제고면경파충궤적자동화정도,설계료일관신적구유자주도항화로경규화공능적면경파충궤. 해파충궤능구흔호지고산출입사신호적개수화방향,극복료전통정위정도저적결점,가이유효해결밀집신호배경중다개복사원적고분변솔、고정도측향정위문제. 위료험증면경파충궤적성능,대사용 DOA 고계신호후적파충궤진행료성능측시. 측시발현:기파충오차요명현소우단순사용최소이승법화쌍곡선측량법,파충합격솔최고체도료98.7%,변이계수최저위1.35%,파충적정학성화은정성교고. 통과대비전통파충궤화본문설계파충궤적파충시간,본문설계적파충궤파충시간유소축단,파충효솔유료대폭도적제고,면경파충성능호,가이재자동화파충작업중진행추엄.
In order to enhance the automation of no-till planter, a new no-till planter having function of autonomous navigation and path planning has been designed, the planter can good estimate the number of the incoming signal and di-rection, and overcome the shortcomings of traditional low positioning accuracy, which can effectively solve the dense sig-nal environment, multiple sources of high resolution, high accuracy direction-finding location problem.In order to verify the performance of no-till planter,the use of signal DOA estimation of seeder was carried out after the performance test, through test,found that the seeding error significantly less than simply using least square method and hyperbola method, seeding rate reached 98.7%, the highest coefficient of variation of the lowest 1.35%, seeding accuracy and high stabili-ty, and design in this paper by comparing the sowing time of traditional planter, the planter designed in this paper sowing time was shortened, sowing efficiency has improved greatly, the no-till seeding performance is good, which can be repli-cated in automation in the planting operation.