Design and simulation for large parafoil fix line object homing algorithm

Traditional parafoil homing usually uses a point as object. As the mobility of parafoil is limited by its glide ratio and wind, in some cases when the parafoil scatter area is large, or the glide ratio of parafoil is small, the deviation of its landing point to object point will be arduous to control. Accordingly, during these situations, when parafoil is used in recovery of spacecraft or satellite, the landing area of parafoil can be set as a rectangle, and the object of parafoil can be set as a line segment. The thesis of this work is designing an algorithm for parafoil homing using line segment as object. The algorithm of wind velocity and direction calculation in different flying segments was also investigated. The algorithm designed navigates the parafoil to land into the predestined area and largely reduce the probability of recovery loads falling to unwanted area to damage houses and people.

致精致人生——一把伞的生活态度

在我家做了两年多的钟点工阿花辞工回乡下了,两年的时间我们几乎天天见面,家里每个隐秘的角落都由她清理打扫,做久了,变得像家人一样亲切,要换还真有点不舍,幸运的是,再请的阿苹竟然和阿花同样能干,同样麻利,提着的心终于放下了。

一把伞的生活态度

在我家做了两年多的钟点工阿花辞工回乡下了,两年的时间我们几乎天天见面,家里每个隐秘的角落都由她清理打扫,做久了,变得像家人一样亲切,要换还真有点不舍。幸运的是,再请的阿苹竟然和阿花同样能干,同样麻利,提着的心终于放下了。