| 词条 | Guidance, navigation, and control |
| 释义 |
Guidance, navigation and control (abbreviated GNC, GN&C, or G&C) is a branch of engineering dealing with the design of systems to control the movement of vehicles, especially, automobiles, ships, aircraft, and spacecraft. In many cases these functions can be performed by trained humans. However, because of the speed of, for example, a rocket's dynamics, human reaction time is too slow to control this movement. Therefore, systems—now almost exclusively digital electronic—are used for such control. Even in cases where humans can perform these functions, it is often the case that GNC systems provide benefits such as alleviating operator work load, smoothing turbulence, fuel savings, etc. In addition, sophisticated applications of GNC enable automatic or remote control.
GNC systems{{expand section|date=February 2012}}GNC systems are found in essentially all autonomous or semi-autonomous systems. These include:
References1. ^{{cite book |last1=Grewal|first1=Mohinder S.|author-link1= |last2=Weill|first2=Lawrence R.|author-link2= |last3=Andrews|first3=Angus P.|author-link3= |last4= |first4= |author-link4= |last5= |first5= |author-link5= |display-authors= |author-mask= |author-name-separator= |author-separator= |lastauthoramp= |year=2007|origyear= |chapter= |trans-chapter=|chapterurl= |editor1-last= |editor1-first= |editor1-link= |editor2-last= |editor2-first= |editor2-link= |editor3-last= |editor3-first= |editor3-link= |editor4-last= |editor4-first= |editor4-link= |editor5-last= |editor5-first= |editor5-link= |display-editors= |title=Global Positioning Systems, Inertial Navigation, and Integration|script-title= |trans-title=|url= |format= |type= |series= |language= |volume= |issue= |others= |edition=2nd|location=Hoboken, New Jersey, USA|publisher=Wiley-Interscience, John Wiley & Sons, Inc.|publication-date= |page=21|pages= |at= |nopp= |arxiv= |bibcode= |doi= |isbn=978-0-470-04190-1|issn= |jfm= |jstor= |lccn= |mr= |oclc= |ol= |osti= |pmc= |pmid= |rfc= |ssrn= |zbl= |id= |accessdate= |via= |registration= |subscription= |laysummary= |laysource= |laydate= |quote= |separator= |postscript= |ref= }} 2. ^{{cite book |last1=Farrell|first1=Jay A.|author-link1= |last2=|first2=|author-link2= |last3=|first3=|author-link3= |last4= |first4= |author-link4= |last5= |first5= |author-link5= |display-authors= |author-mask= |author-name-separator= |author-separator= |lastauthoramp= |year=2008|origyear= |chapter= |trans-chapter=|chapterurl= |editor1-last= |editor1-first= |editor1-link= |editor2-last= |editor2-first= |editor2-link= |editor3-last= |editor3-first= |editor3-link= |editor4-last= |editor4-first= |editor4-link= |editor5-last= |editor5-first= |editor5-link= |display-editors= |title=Aided Navigation: GPS with High Rate Sensors|script-title= |trans-title=|url= |format= |type= |series= |language= |volume= |issue= |others= |edition=|location=USA|publisher=The McGraw-Hill Companies|publication-date= |page=|pages=5 et seq.|at= |nopp= |arxiv= |bibcode= |doi=|isbn=0-07-164266-8|issn= |jfm= |jstor= |lccn= |mr= |oclc= |ol= |osti= |pmc= |pmid= |rfc= |ssrn= |zbl= |id= |accessdate= |via= |registration= |subscription= |laysummary= |laysource= |laydate= |quote= |separator= |postscript= |ref= }} 3. ^{{Cite report | last1 = Draper | first1 = C. S. | last2 = Wrigley | first2 = W. | last3 = Hoag | first3 = G. | last4 = Battin | first4 = R. H. | last5 = Miller | first5 = E. | last6 = Koso | first6 = A. | last7 = Hopkins | first7 = A. L. | last8 = Vander Velde | first8 = W. E. |date=June 1965 | title = Apollo Guidance and Navigation | url = http://www.ibiblio.org/apollo/hrst/archive/1713.pdf | publisher = Massachusetts Institute of Technology, Instrumentation Laboratory | format = | others = | edition = | location = Massachusetts | chapter = | section = | page = | pages = I-3 et seqq. | docket = | accessdate = October 12, 2014 | quote =}} External links
See also
6 : Applications of control engineering|Avionics|Robot control|Cybernetics|Military electronics|Unmanned vehicles |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。