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A Reference Point-based Precise Relative Positioning Method Using a Single Frequency Receiver
Point-based Precise Relative Positioning Method Single Frequency Receiver
2015/6/26
This paper investigates how to take advantage of the known position of a point at which a single frequency GPS receiver is located. Using this reference point and a single frequency receiver, a precis...
基于传感器的变量施肥机定位方法（Positioning Method of Variable Rate Fertilizer Applicator Based on Sensors）
变量施肥机 传感器 定位
2009/11/3
简述了一种应用传感器代替GPS的变量施肥机定位方法。控制器读取传感器的脉冲信号，计算施肥机的行走距离，由自动网格识别算法实现施肥机自动网格识别。本文给出了传感器测距累积误差校正方法以提高定位精度。对于垄长为40 m的网格，要使定位误差小于6%，累积误差应小于2.4 m。实验结果表明，经过校正，拖拉机行走距离为250 m的时候，光电编码器和接近开关传感器测距累积误差分别为2.32 m和2.34 m(...