ລາດາ

**ລາດາ** () ຫຼື **ເລດາ** () ແມ່ນລະບົບທີ່ໃຊ້ຄື່ນແມ່ເຫຼັກໄຟຟ້າເປັນເຄື່ອງມືໃນການລະບຸໄລຍະ (range) , ຄວາມສູງ (altitude) ລວມເຖິງທິດທາງຫຼືຄວາມໄວໃນການເຄື່ອນທີ່ຂອງວັດຖຸ. 

ເດີມທີຕັ້ງແຕ່ປີ ຄ.ສ. 1941 ຄຳວ່າ "ລາດາ (ຣາດາຣ໌)" ໃນພາສາອັງກິດສະກົດດ້ວຍອັກສອນໂຕພິມໃຫຍ່ ແມ່ນ RADAR ແລະຫຍໍ້ມາຈາກຄຳວ່າ Radio Detection and Ranging ຢ່າງໃດກໍດີໃນໄລຍະຫຼັງ ຄຳນີ້ໄດ້ກາຍເປັນຄຳທົ່ວໄປໃນພາສາອັງກິດ ຈຶ່ງພົບພໍ້ເຫັນການສະກົດດ້ວຍໂຕພິມນ້ອຍແທນ. ສຳລັບໃນສະຫະລາຊະອານາຈັກ ຄຳວ່າລາດາ ແຕ່ເດີມເອີ້ນວ່າ RDF (Radio Direction Finder).
## ອ້າງອີງ
;ບັນນານຸກົມ
* Barrett, Dick, "*All you ever wanted to know about British air defence radar*". The Radar Pages. (History and details of various British radar systems)
* Buderi, "*Telephone History: Radar History *". Privateline.com. (Anecdotal account of the carriage of the world's first high power cavity magnetron from Britain to the US during WW2.)
* Ekco Radar WW2 Shadow Factory  The secret development of British radar.
* ES310 "*Introduction to Naval Weapons Engineering.*". (Radar fundamentals section)
* Hollmann, Martin, "*Radar Family Tree*". Radar World.
* Penley, Bill, and Jonathan Penley, "*Early Radar History —an Introduction*". 2002.
* Pub 1310 *Radar Navigation and Maneuvering Board Manual*, National Imagery and Mapping Agency, Bethesda, MD 2001 (US govt publication '...intended to be used primarily as a manual of instruction in navigation schools and by naval and merchant marine personnel.')
* Swords, Seán S., "Technical History of the Beginnings of Radar", *IEE History of Technology Series*, Vol. 6, London: Peter Peregrinus, 1986*

## ອ່ານຕື່ມ
* Burch, David F., *Radar For Mariners*, McGraw Hill, 2005, ISBN 978-0-07-139867-1.
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* Kaiser, Gerald, Chapter 10 in "A Friendly Guide to Wavelets", Birkhauser, Boston, 1994.
* Kouemou, Guy (Ed.): *Radar Technology.* InTech, 2010, ISBN 978-953-307-029-2, (Radar Technology - Free Open Access Book | InTechOpen).
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* Younghusband, Eileen., *Not an Ordinary Life. How Changing Times Brought Historical Events into my Life*, Cardiff Centre for Lifelong Learning, Cardiff, 2009., ISBN 9780956115690 (Pages 36–67 contain the experiences of a WAAF radar plotter in WWII.)
* Younghusband, Eileen., *One Woman's War*. Cardiff. Candy Jar Books. 2011. ISBN 978-0-9566826-2-8

## ແຫຼ່ງຂໍ້ມູນອື່ນ
* MIT Video Course: Introduction to Radar Systems A set of 10 video lectures developed at Lincoln Laboratory to develop an understanding of radar systems and technologies.
* *Popular Science*, August 1943, *What Are the Facts About RADAR'' one of the first detailed factual articles on radar history, principles and operation published in the US
* "The Great Detective", 1946.  Story of the development of radar by the  Chrysler Corporation 
* Christian Hülsmeyer and the early days of radar
* Radar: The Canadian History of Radar - Canadian War Museum 
* Radar technology principles
* History of radar
* Radar invisibility with metamaterials 
* Radar Research Center-Italy 
* Early radar development in the UK
* Principles of radar target acquisition and weapon guidance systems
* Cloaking and radar invisibility 
* RAF Air Defence Radar Museum
* Radar - A case study highlighting the vital contribution physics research has made to major technological development
* Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR
* Space Observation Radar TIRA (Tracking and Imaging Radar) of Fraunhofer FHR
ໝວດ:ລາດາ