本文提出平行修正導航法設計概念並以船舶軌跡追蹤模擬驗證之。船舶航行常以航路規劃及自航控制器完成。常用視線導航法，然該法僅針對目標點來產生參考航向角，並未考量導航路徑間之偏差問題，亦即並未將受環境外力干擾納入考量，此將影響後續路徑跟隨效果。本文提出一新導航法，以本船位置與導航線的軌跡偏差量，結合平行修正之概念，發展一新導航法則，簡稱平行修正導航法。將環境外力產生之偏差量當成迴授修正量，利用偏差量產生相對參考航向角，使其迅速導引回規劃路徑。先運用電腦數值模擬探討於船舶路徑模擬測試可行性。隨後以操船模擬機驗證，評估環境外力干擾下之成效，藉由實驗可具體評估不同導航法之差異性，並進行船舶導航性能之探討。

The work is a verification study of the parallel correction (PC) guidance scheme while using numerical simulation and (USDDC Maneuvering System, UMS-2011) ship handling simulator as the test platform for marine vessel transportation. The traditional Line-of-Sight (LOS) guidance method has been widely adopted in marine transportation. The traditional autopilot system was only focused on the course keeping maneuver, thus it will cause some cross-track errors by environmental disturbances. This study proposes a parallel correction guidance law which adopted the cross-track errors as feedback information to correct the vessel heading angle and is used to steer the vessel back to the desired path during transportation. This can prevent the cross-track error in advance occurrence significant during the marine transportation. This study is concerned with the guidance performance of two types of guidance methods; which is the traditional line-of-sight guidance law and the parallel correction guidance concept. The numerical computer simulation was adopted to evaluate the feasibility of the proposed parallel correction guidance method. The feasibility of the guidance system was verified by using ship handling simulator-based experiments. The experimental studies indicated successful paths following maneuvers during marine transportation were achieved by using the proposed parallel correction guidance method. The trajectories, the deviations, the rate of convergence of the vessel toward the desired path during the marine transportation experiments can be evaluated the performance between the traditional line-of-sight concept and the parallel correction guidance method.