By theoretical analysis and numerical simulation, it is shown that the variable structure control is correct and feasible and the control effect is better than PID control for ship course-keeping.
理论分析与仿真研究表明：对于舰船定向航行，变结构控制方案正确可行，控制效果优于PID控制方案。
The complete form of loss function for the additional propulsion energy of ships during course-keeping mode has been derived.
本文得出了船舶航向保持的附加推进能量损耗目标函数的完整形式。
In the fifth chapter, the variable structure control methods of nonlinear systems are used in the ship's course-keeping system with actuator dynamics.
第五章，将非线性系统变结构控制方法应用于带有执行机构的船舶航向保持系统。
GPC algorithm for ship course-keeping and turning is introduced. The parameters of the controller can be automatically adjusted on the basis of some intelligent rules.
提出了基于广义预测的船舶航向保持和转向控制算法，其中控制器参数可根据智能规则自动调整。
The more students who enroll in a course but don't come to campus, the more the school saves on keeping the lights on in the classrooms, paying doorkeepers, and maintaining parking lots.
报名参加课程但不来校园的学生越多，学校在教室照明、支付门卫工资和维护停车场方面节省的开支就越多。
As an important domain of western psychology study during the last thirty years, resilience means the positive course of keeping adapting among individuals in face of adversity.
压弹是近二三十年来西方心理学研究的重要领域，它是指个体在面临逆境时维持积极适应的过程。
The control principle of airspeed keeping, altitude keeping, course keeping and swerve control is analyzed, too.
进行了空速保持、高度保持、航向保持和转弯控制等控制律的详细分析。
Of course, people have been keeping personal status trackers for hundreds of years—they just called them journals.
别忘了，人类记录个人状态已经有几百年的历史了 ——那就是写日记。
The drawback of keeping this much data is, of course, disk space, but the benefit of having this data available when needed outweighs the cost in most cases.
当然，保留这类数据的一个缺点是占用磁盘空间，但在许多情况下，在需要时能够使用这些数据的优点远大于其磁盘空间成本。
Of course, keeping the compensation information in memory would significantly speed up the processing but could result in further database inconsistencies if the compensation coordinator were to fail.
当然，将补偿信息保留在内存中会极大地加速处理，但是如果补偿协调器发生故障，则会进一步导致数据库不一致。
Of course, all girls are not keeping up with the Joneses but so many do, particularly those who give much weight to their looks.
当然，并非所有的女孩都在赶时髦，但她们中的许多人确实如此，尤其是那些看重相貌的女孩。
Keeping the show on the road during a period of turmoil required certain skills, but setting a company on the right course afterwards will provide the true test of corporate leadership.
在时局动荡之时保持按部就班显然需要一定的技巧，不过在此后为公司指明正确的方向才是检验企业领导能力的试金石。
This paper presents a new on-line optimization method for parameter control of a course keeping autopilot based on genetic algorithms.
采用遗传算法对航向保持自动操舵仪控制参数进行在线优化。
For a nonlinear course keeping system for ships, a kind of nonlinear robust PID is presented, which is based on an exact feedback linearization and a closed-loop gain shaping algorithm.
针对非线性船舶航向保持系统，给出一种基于精确反馈线性化和闭环增益成形算法的非线性鲁棒pid控制器，该非线性PID控制器由非线性函数项和鲁棒pid控制器组成。
Because the course of action they took turned out badly, they believe that the opposite course—keeping Mother at home, postponing the operation—would have turned out better.
因为他们采取的行动结果很糟糕，他们认为相反的做法——让母亲呆在家里，推迟手术——会有更好的结果。
These days, of course, keeping China's trade surplus down is a bit trickier.
当然，如今要减少中国的贸易顺差就有点让人挠头了。
He made an effort to think of nothing but the problem of keeping the jeep on a straight course.
他竭力控制自己不去思索，集中精力让吉普沿笔直方向行驶。
Of course, I'm keeping learning.
当然我也在不断的学习。
Do your job well. This means producing high-quality work, of course, but also keeping the big picture in mind.
做好你的工作。当然，这就是说要高质量完成工作，但是也要纵观全局。
Because the course of action they took turned out badly, they believe that the opposite course - keeping Mother at home, postponing the operation - would have turned out better. CET-6, 2005.1.
因为他们所采取行动的结果不好，他们就相信相反的行动——把母亲留在家中，推迟手术——会有好结果。
The PID autopilot control method based on the neural network is provided for ship course keeping.
提出一种基于神经网络的PID自动舵控制方法。
Therefore if you take good care of your skin and choose a course of treatment that will work, you will go a long way to keeping your eczema under control.
因此，只要你护理好你的皮肤，选择一种有效的治疗方法，将对你控制湿疹大有帮助。
The quality of shaft alignment is very importance in ensuring the long term appropriate running of shafting system and crucial in keeping the sailing vessel in the set course.
船舶轴系校中的质量，对于确保轴系长期正常地运转非常重要，也是保证船舶正常航行的关键。
Students, in addition to keeping up with the readings and participating in class discussions, will be expected to write a series of short essays and field studies over the course of the semester.
除了阅读指定文章、参与课堂讨论，同学们整学期还要缴交数篇短文和田野报告。
Of course, for the real FriendFeed addicts, there are already plenty of third-party desktop applications you can use for keeping up with the site in real-time.
当然，对于真正的FriendFeed痴迷者而言，已经有了许多第三方的桌面应用可以用来与网站实时交互。
Of course, for the real FriendFeed addicts, there are already plenty of third-party desktop applications you can use for keeping up with the site in real-time.
当然，对于真正的FriendFeed痴迷者而言，已经有了许多第三方的桌面应用可以用来与网站实时交互。
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