中级复习4.5

How are you doing = how is it going | in ...
He who hesitates is lost.
hesitate to
have a good time.
My family and I had the time of our lives in Hawii last summer.
Although your place is not very near,let's bike there.
what else we can do?
biking along the bank of the river could be fun.
As they say = As people say = As the saying goes= As an old saying goes

It makes me nervous just to watch someone do it.
It scares me to just to think about it.
For me,to live a short and exciting life is far better than to live a long and boring one.
have the guts to = have the courage to

The robbers tied the bank guard with a piece of rope.
The cowboy tied his horse to a tree.
The lion's roar scared the kids to death.
Be crazy about
pay for
cure his madness
The couple are excited about their new-born baby boy.
be bored with = be sick of = be tired of= be fed up with
see watch look at hear listen to + sb + do
I saw her leave 有事情发生
I saw her leaving 正在
I saw her robbed 被动
It took courage for him to admit that he was wrong.
live in the country乡村
live there there为副词
live a life = lead a life
【无人机】基于改进粒子群算法的无人机路径规划研究[和遗传算法、粒子群算法进行比较](Matlab代码实现)内容概要:本文围绕基于改进粒子群算法的无人机路径规划展开研究,重点探讨了在复杂环境中利用改进粒子群算法(PSO)实现无人机三维路径规划的方法,并将其与遗传算法(GA)、标准粒子群算法等传统优化算法进行对比分析。研究内容涵盖路径规划的多目标优化、避障策略、航路点约束以及算法收敛性和寻优能力的评估,所有实验均通过Matlab代码实现,提供了完整的仿真验证流程。文章还提到了多种智能优化算法在无人机路径规划中的应用比较,突出了改进PSO在收敛速度和全局寻优方面的优势。; 适合人群:具备一定Matlab编程基础和优化算法知识的研究生、科研人员及从事无人机路径规划、智能优化算法研究的相关技术人员。; 使用场景及目标:①用于无人机在复杂地形或动态环境下的三维路径规划仿真研究;②比较不同智能优化算法(如PSO、GA、蚁群算法、RRT等)在路径规划中的性能差异;③为多目标优化问题提供算法选型和改进思路。; 阅读建议:建议读者结合文中提供的Matlab代码进行实践操作,重点关注算法的参数设置、适应度函数设计及路径约束处理方式,同时可参考文中提到的多种算法对比思路,拓展到其他智能优化算法的研究与改进中。
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