Anti-stealth

[oxygenne]

Одлична статија како руските се справуваат со стелт технологијата:
http://www.ausairpower.net/APA-2009-06.html

 

[smart ass]

Too many assumptions oxygene...се справуваат-но НЕМА да успеат,кога се во прашање стелт =..руската доктрина е едноставна-детектирај го стелтот од радар на ЗЕМЈА-па прати инфо до авионот,во случајов сухоиве..

Table 3: Range for 1 m2 Target vs. Modelled L-Band AESA Configurations
Antenna/TR Module
Gain/Side [dBi]
Pave [kW/dBW] R @ 1 m2 [km/NMI]
Notes
2 x 12 Baseline / Baseline
20.5
0.864 / 29.4
73.3 / 39.6
9.7 dBi/element
2 x 12 Hi Gain / Baseline
23.8
0.864 / 29.4
89.1 / 48.1 13 dBi/element
2 x 12 Baseline / Uprated
20.5
2.16 / 33.3
91.2 / 49.2 9.7 dBi/element
2 x 12 Hi Gain / Uprated 23.8
2.16 / 33.3
110.9 / 59.9 13 dBi/element
2 x 16 Baseline / Uprated 22.2
2.88 / 34.6
109.0 / 58.8 9.7 dBi/element
2 x 16 Hi Gain / Uprated 25.1
2.88 / 34.6
128.8 / 69.6 13 dBi/element

Notes/Assumptions:
18% Duty Cycle; growth variants may employ much higher Duty Cycles;
Add 3 dBi for paired arrays;
Range model as per Skolnik 3E 4.16 with assumed low loss coherent integration;
All ranges for target RCS of 1 m2 in L-band;
Configurations with uprated TR modules assume 500 W peak rated transistors at like duty cycle.
The model is based upon a series of reasonable assumptions about the radar design, but in the absence of hard design parameters disclosed by Tikhomirov NIIP, these are only assumptions - the actual performance of radar could be considerably better or worse depending on specific design choices and implementation constraints, including factors such as the absence or presence of STAP processing, and choices in FAR, Pd, and other cardinal parameters.

Нејсе...овие не се баш толку отпорни на електронски Chaff

а пресметај по формула и ќе видиш како расте далечината прецизноста ја губи и тоа над 250 метра



башка

All this brings us to the original question re. Stealth – will it work? The current generation’s capability is optimized against X-band tracking and guidance fire control systems.

Џабе е....

башка

There is an inherent tradeoff in such a design. Elements with higher gain will impose restrictions on bandwidth, and in beamsteering angle. The latter is critical in this application, since wide beamsteering angles in azimuth dictate a wide radiation pattern in azimuth. The element mainlobe angular width must be greater than the maximum beamsteering angle, or significant loss in total array gain will occur as the AESA mainlobe is steered into the region where element gain falls off rapidly with azimuth angle.

и

The current Tikhomirov NIIP L-band AESA design does not appear to use a liquid cooling loop

(се што пише,авакс,мавакс..ПЕ мерки паѓа во вода овде)...

а кутрите уште

transistors in the design

Ако веќе збориме за AESA

[/IMG]

ПРВИТЕ кои произведоа и продават низ цел свет,во турција,израел,јапонија ....

After designing and building the world’s first operational AESA fighter radar—the APG-63(V)2 for the F-15C, first fielded in 2000, Raytheon has continuously developed and refined its AESA technology. The culmination of this journey is the new F-15 and F/A-18 radars—the world’s only and most advanced air-to-air, air-to-surface multimode AESA radars in production.

AGP-79 Мулти мод...

понатаму...

Raytheon’s AESA radar systems have the ability to link fighters, bombers and surveillance aircraft, service members in the air and on the ground, integrate data from unmanned aerial vehicles and nontraditional ISR sources to provide the right information at the right time for the right mission.

AESA radars are fielded on a variety of platforms, including the F-15 and F/A-18E/F, the B-2, and the ASTOR surveillance and reconnaissance aircraft. Adaptable to any platform, Raytheon’s proven AESA technology gives pilots and aircrews the ultimate operational edge.

Whatever the task—defense, ISR, or strike—pilots and aircrews already rely on Raytheon’s AESA technology for optimal mission assurance.

Еве и русите дури се замараат...

Така да

There is much more to this discussion than can be recounted here. The short answer to the question Will Stealth Work is still a yes

Нека не ставаат транзистори и тракатанци,нека си купат салам AESA(не е забранет за извоз-освен моделот кај Б-2) оти стварно штета е сухоите имаат маестрални маневарски способности...а радарите им се ОТРОВ!!(на авиониве...башка што и откажуваат).


П.С Ausairpower е повеќе рекламен сајт...нешто како овие од џејнс дифенс.

И плиз барем потрудете се барем малце за вовед достоен за отварање тема на крај краеви тоа е согласно правилата.

Кога некој отвара тема обврзан е да даде вовед,потоа да образложи што и како...не бара никој докторска дисертација,ама линк со тема...

Еве неколку примери за вовед.

http://forum.kajgana.com/showpost.php?p=2966802&postcount=1

http://forum.kajgana.com/showpost.php?p=3271083&postcount=1

 

[oxygenne]

Од причина што е индивидуална анализа не може да знаеме ништо со сигурност:

The model is based upon a series of reasonable assumptions about the radar design, but in the absence of hard design parameters disclosed by Tikhomirov NIIP, these are only assumptions - the actual performance of radar could be considerably better or worse depending on specific design choices and implementation constraints, including factors such as the absence or presence of STAP processing, and choices in FAR, Pd, and other cardinal parameters.

All this brings us to the original question re. Stealth – will it work? The current generation’s capability is optimized against X-band tracking and guidance fire control systems.

Зборуваме за L-BAND tracking

а кутрите уште transistors in the design

Ах кутрите:

On the prospective fighters, says Yuri Belyy (NIIP), it will no longer be just radar, but the integrated radio-electronic system, which includes radars in several wave bands, an identification system, electronic warfare (EW) and electronic intelligence (ELINT). According to him all this is connected into the united ideology, the united concept, and will give the “synergetic combat effect”.

NIIP's AESA emitting modules (MMICS) are made on basis of proved serial technology, being manufacturing on the automated producing lines. For this purpose the state ensured colossal technological rearmament of one of the Moscow enterprises - “Istok inc.” (Fryazevo, Moscow district). Two product lines are under building: the line, where chips themselves are done and an assembly-line, where these chips are assembled into the microcircuits, and then they are integrated into the elements of antenna. These are the specialized micro-chip of superhigh frequencies (SHF), the monolithic integrated circuits of SHF band (MMICs). The more numerous such elements, the more powerful the radar. The quantity of modules in the antenna can reach several thousand.

NIIP's director Yuri Belyy emphasized that this is maximally automated production, in which a human factor is almost excluded. Early there was no such technology in Russia. The equipment, which is not produced in our country, was imported from different states, including Japan. However, Yuri Ivanovich (Belyy) did not say, how many radars they have manufactured.

- Everything is done upon the specific orders, it explained. – We have the manufacturing capability of "Istok", NIIP and 'Ryazan instrument plant' (GRPZ). Now we are transferring all the there necessary documentation and technology. During this program the new production housing with the new equipment was built… “In principle we are ready to equip with our radars up to 50 aircrafts per year”, - said Yuri Belyy.

NIIP's chief said also, that they do AESAs not only for fighters, but for other military systems too. Current antenna phased arrays technology can become standard for different purposes. It can be used in all military services, including long range antiaircraft missile systems, which are now created by “Almaz-Antey” and medium distance 'Buk' AAMS. Maximal unification and serial volume will give huge cost effect. It's the way Americans go: they transfer their military technologies into to civil sector - into the systems of communications and navigation, in warning system of rail transport etc…

- Although, it's impossibly to install our products on each car, we still are going to interest the railroad manufacturers in installing our civil devices for increasing the safety of traffic. However, on that way we still meet many bureaucratic problems.

THE FUTURE BELONGS TO YOUTH

Young radio engineers and the designers, who came 4-5 years ago from different Russian technical universities, have made a bulk part of the work. 'Tikhomirov's NIIP' employs approximately 400 people under age 30. 30-40 young employees were involved in AESA development directly, and when need, they even stayed overnight like in war time…

There are young persons everywhere: on the stands, on assembling and control line… However the general director is not satisfied and think that the number of young employees is not enough. He decide to build a new housing quarter for the young specialists families.

At the MAKS -2009 air show, 'Tikhomirov NIIP' will demonstrate also an L- range AESA. It's intended for installation into the leading-edge slats of the fighter's wing. It is also made with use of the contemporary domestic hybrid integral technologies and provides electronic scanning in wide sector of angles in horizontal axis. In addition it has broadband capability. Like the X-band radar, this L-band radar was assembled in NIIP with help of unique laboratory equipment, which includes the last word of contemporary technology: radar anechoic chamber".
My notes:
There are two AESA programs in Russia with independent technologic basis and competitive design teams. These are 'Fazotron-NIIR' with its Zhuk-AE AESA project and 'Tikhomirov's NIIP', who develops PAK FA AESA radar. So the competition between them seems to be very fierce with good price outcome for buyers however.
It's not clear whether NIIP uses on its first AESA its unique mechanical gimbals for additional turning. It could drastically improve the angle of survey, which cannot be higher than 70 grad on a regular AESA. Let's wait to pictures from MAKS-2009.

За крај,исто доста интересно:http://www.ausairpower.net/APA-NOTAM-140909-1.html

 

[smart ass]

Епа они тек сега се замараат со интегрирање на податоците...кутрите,јас велам убаво виде какви радари имаат америте(башка докажани)-нека купат русите и никому ништо

А види продакшн рејтио 50-радари на година:pos2:

Ах кутрите:

On the prospective fighters, says Yuri Belyy (NIIP), it will no longer be just radar, but the integrated radio-electronic system, which includes radars in several wave bands, an identification system, electronic warfare (EW) and electronic intelligence (ELINT). According to him all this is connected into the united ideology, the united concept, and will give the “synergetic combat effect”.

Значи нема да биде само обичен радар

no longer be just radar,[/B

туку радар кој вклучува радари:pos2:

integrated radio-electronic system[/SIZE], which includes radars in several wave bands

Понатаму

identification system, electronic warfare

и

intelligence

НО
Ова нема врска со технологија

According to him all this is connected into the united ideology

Туку со идеологија...

Што не води до заклучокот

П.С Ausairpower е повеќе рекламен сајт...нешто како овие од џејнс дифенс.

Истото важи и за сличните руски лажливи сајтови...(аусаир пауер е австралиски очигледно-башка имаме лого на фирмата која нема поим колку има вработени!!)..

Значи доволни ни се доста интересни работи каде директори мешаат уште баби и жаби+хибриди и синергии-ако русите од вакви очекуваат нешто Бог нека им е напомош-руке бацим....па зборат како работеле млади

Tikhomirov's NIIP' employs approximately 400 people

абее кој паѓа на вакви финти:pos2:

Туу па немаат евиденција кој работи кој не па и овде одат со приближни бројки и
Too many assumptions
Не оди ова.

This is nothing less than the “shared multifunction aperture” model now very popular in the design of Western X-band fighter radars, examples including the Raytheon APG-79 and NG APG-81.

Many of these functions can be integrated into the design without great difficulty, in part due to the modest number of antenna elements used in an L-band design, and in part because the demands in digitising, synthesizing, and processing lower band

Јасно...само тоа можат транзисторите-ловер бенд процесирање-а за другото...посебно авакс,џаминг интегрејтед бла бла...

А за црвеното-но комент.


Ова е лекот само....

Raytheon’s AESA radar systems have the ability to link fighters, bombers and surveillance aircraft, service members in the air and on the ground, integrate data from unmanned aerial vehicles and nontraditional ISR sources to provide the right information at the right time for the right mission.

AESA radars are fielded on a variety of platforms, including the F-15 and F/A-18E/F, the B-2, and the ASTOR surveillance and reconnaissance aircraft. Adaptable to any platform, Raytheon’s proven AESA technology gives pilots and aircrews the ultimate operational edge.

Whatever the task—defense, ISR, or strike—pilots and aircrews already rely on Raytheon’s AESA technology for optimal mission assurance.

и

Adaptable to any platform

затоа уш на почеток велам нека ги стават на сухоите..

 

[UniqueGirl]

potpolno se soglasvam sas vas.. i eve ke kazam istoto so i smart :smir::helou:

 

[oxygenne]

.

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