Talk:Active electronically scanned array
i know i did not write this page in the simplest terms; soon i'll try to revise it to make it clearer for the layperson. i think it is reasonable to assume or require that the viewer has a basic understanding of radar technology (by reading of the radar page or otherwise). ✈ James C. 19:23, 2004 Jul 26 (UTC)
Chinese AESA?
There is a report in Strategy Pages defence news about the airborne AESA for the F16 class J10A indigenous fighter.
http://www.strategypage.com/htmw/htecm/articles/20070817.aspx
" Chinese Deploy Superior Avionics August 17, 2007: China is touting the advanced electronics in their new J10A fighter. The J10A is using an Active Electronically Scanned Array (AESA) radar. AESA systems consist of thousands of tiny radars that make it possible to track many different targets simultaneously. China claims the J10A radar can track ten targets at once, and attack four of them simultaneously (with long range missiles). China has revealed other military AESA radars recently, indicating years of intense research and development in this area.
"The J10 is also Chinese made. It looks something like the American F-16, and weighs about the same (19 tons). Like the F-16, and unlike the Su-27, the J10 has only one engine. Originally, the J10 used a Russian AL-31FN engine, but China has been working for a decade to manufacture their own version of this, the WS10A.
"It's no accident that the J10 resembles the F-16, because Israel apparently sold them technology for the Israeli Lavi jet fighter. Israel abandoned the Lavi project, because of the high cost and availability of cheaper alternatives (buying F-16s and F-15s from the United States.) But the Lavi was meant to be a super F-16, and incorporated a lot of design ideas from the F-16 (which the Israelis were very familiar with, as they used them, and had developed new components for them.) China has about a dozen J10As in service, and will probably increase production once their WS10A engine is operational (which may be in a year or two.) China's extensive espionage efforts in the U.S. has long sought jet engine and AESA technology.
81.86.144.210 11:36, 18 August 2007 (UTC)
.....
Does the system *really* only activate 1 antenna at a time?
Or is this really a Phased array radar?
(I ask because "activate 1 antenna at a time" seems to be a popular oversimplification of how phased array radars work.)
--DavidCary 23:39, 10 November 2005 (UTC)
- I'm confused by your question; the quoted phrase "activate 1 antenna at a time" doesn't appear in this article or in the Phased array article. Engineer Bob 00:16, 11 November 2005 (UTC)
Active scanning with holes
Should the article not cover that this kind of radar is capable of being active even though ground based radar detectors is nearby. This can be done if the location of ground stations is known, and when turning active radar on, no radar ray will be sent in the direction of the known positions of those radar detection stations, in effect leaving holes of no rays. Sorry for explaining this so cumbersome, hope you get the point. -- A human 18:09, 17 January 2006 (UTC)
- If I understand you correctly, you mean the feature to not scan each area with the same amount of energy (or some not at all), right? This is not restricted to AESAs, not even electronically scanned arrays. Mechanically scaning radars can also do this. 19:12, 17 January 2006 (UTC)
- Oh, I didn't know that. Thanks for the clearification. -- A human 00:33, 18 January 2006 (UTC)
Probably needs to be merged in here. Any objections? CP/M comm |Wikipedia Neutrality Project| 18:04, 22 September 2006 (UTC)
- Although the photos are the same, I think the referenced APAR article refers to a specific AESA system. Engineer Bob 23:44, 5 October 2006 (UTC)
- Engineer Bob is correct, basically. While the term "active phased array radar" can be considered a generic term, AESA is an equivalent generic term whose usage has been in the ascendancy. The term "Active Phased Array Radar (APAR)" is the actual name of a specific active phased array radar (or AESA, if you prefer). Therefore, I think the page referring to APAR should remain as a reference to the APAR product, and should simply link to the generic page on AESAs. TheOriginalMagicMonkey 21:12, 7 October 2006 (UTC)
- I've made some edits to the APAR page in order to add information but also to make it clear that it is a specific instance of an AESA. I feel strongly that the two pages should not be merged. TheOriginalMagicMonkey 22:32, 7 October 2006 (UTC)
- (was edit conflict) While I for multiple times heard of APAR as a generic term, let it be this way, as it's better than redirect and dab title. Removed tags. I'll add dab into the (other) article. CP/M comm |Wikipedia Neutrality Project| 22:37, 7 October 2006 (UTC)
Increased gain
how is the gain higher for an aesa compared to a phased array? 59.92.156.36 13:46, 27 February 2007 (UTC)a pilot
Sorting links to radars
If i where to sort the varius radars, should I sort by designation or, as seems more logical, by manufacturer. Johan G (talk) 02:45, 1 March 2009 (UTC)
Hi resolution image?
I suggest a higher resolution image. The link below contain pictures of an AESA radar on an Australian ship and are of a superior resolution.
Also noting that APAR actually stands for Active Electronically Scanned Array, this might remove some confusion from this article.
Cheers, — Preceding unsigned comment added by Streddy (talk • contribs) 06:34, 22 December 2010 (UTC)
Code injection
I call bullshit on the 'code injection' limitations of AESA radars. The article was clearly written by someone with little understanding of such techniques. Even if a buffer overflow vulnerability would exist (extremely unlikely), it would be a simple firmware fix. — Preceding unsigned comment added by 83.227.9.105 (talk) 11:05, 12 April 2012 (UTC)
Receiver size?
"Receiver electronics were also large due to the high frequencies that they worked with."
There's nothing about high frequencies that requires large electronics. Clarification definitely needed.