stealth technology (or LO for "low observability") is not a single technology. It is a combination of technologies that attempt to greatly reduce the distances at which a person or vehicle can be detected; in particular radar cross section reductions, but also acoustic, thermal, and other aspects:
stealth technology (or LO for "low observability") is not a single technology. It is a combination of technologies that attempt to greatly reduce the distances at which a person or vehicle can be detected; in particular radar cross section reductions, but also acoustic, thermal, and other aspects:
Aircraft Stealth Technology is the tech part of an airplane most students get curious about. Stealth is the technology with help of which we can hide an airplane from enemy's eye and radar both. The scientific name for stealth technology is low observatory, which incorporates several concepts into one technology. Stealth is nothing new, it has been used since caveman years with covering up in leaves, but it is now used in military aviation. Stealth does not always refer to just radar there are other forms of detections such as heat signatures. check other aspect by <a>read more</a>
Stealth refers to the act of trying to hide or evade detection. Stealth technology is
ever increasingly becoming a paramount tool in battle especially “high technology wars”
if one may occur in the future where invisibility will mean invincibility. Able to strike with
impunity, stealth aircraft, missiles and warships are virtually invisible to most types of
military sensors. The experience gained at the warfront emphasizes the need to
incorporate stealth features at the design stage itself. According to conventional military
wisdom, surprise is the best form of attack. With evermore sophisticated methods of
detection, however, catching the enemy unawares has becoming increasingly difficult.
Thus paving way to the development of increasingly sophisticated technologies that help
in evading the enemy's ever vigilant “eyes”.
“The future is bright, the future is stealth”
Aircraft Stealth Technology is the tech part of an airplane most students get curious about. Stealth is the technology with help of which we can hide an airplane from enemy's eye and radar both. The scientific name for stealth technology is low observatory, which incorporates several concepts into one technology. Stealth is nothing new, it has been used since caveman years with covering up in leaves, but it is now used in military aviation. Stealth does not always refer to just radar there are other forms of detections such as heat signatures. check other aspect by <a>read more</a>
Stealth refers to the act of trying to hide or evade detection. Stealth technology is
ever increasingly becoming a paramount tool in battle especially “high technology wars”
if one may occur in the future where invisibility will mean invincibility. Able to strike with
impunity, stealth aircraft, missiles and warships are virtually invisible to most types of
military sensors. The experience gained at the warfront emphasizes the need to
incorporate stealth features at the design stage itself. According to conventional military
wisdom, surprise is the best form of attack. With evermore sophisticated methods of
detection, however, catching the enemy unawares has becoming increasingly difficult.
Thus paving way to the development of increasingly sophisticated technologies that help
in evading the enemy's ever vigilant “eyes”.
“The future is bright, the future is stealth”
From many past years, Stealth Technology has became very effective approach for aircraft to hide it from radar system. Especially for military operations, "Low Observable" technology is best these days. These days all countries are using "Low Observable" principles and techniques for making their aircraft, also the many countries are upgrading their old generation aircraft by making modification to hide from radar system. However, Low observable means not completely invisible but complete disappearance from radar system. Stealth technology have many advantages but besides advantages it has also some disadvantages like its development cost, flyaway cost and maintenance cost are much higher than normal aircraft. Due to capabilities of Stealth technology many countries have been developing anti stealth technology 2 These days United States of America taking advantage of stealth technology. This paper will begin by a brief history of development of stealth aircraft and short introduction of most popular stealth fighter aircrafts 2 . Vimal Kumar Yadav | Pikesh Bansal | Shivam Sharma "A Review of Stealth Technology" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31142.pdf Paper Url :https://www.ijtsrd.com/engineering/mechanical-engineering/31142/a-review-of-stealth-technology/vimal-kumar-yadav
Stealth refers to the act of trying to hide or evade detection. Stealth technology is
ever increasingly becoming a paramount tool in battle especially “high technology wars”
if one may occur in the future where invisibility will mean invincibility. Able to strike with
impunity, stealth aircraft, missiles and warships are virtually invisible to most types of
military sensors. The experience gained at the warfront emphasizes the need to
incorporate stealth features at the design stage itself. According to conventional military
wisdom, surprise is the best form of attack. With evermore sophisticated methods of
detection, however, catching the enemy unawares has becoming increasingly difficult.
Thus paving way to the development of increasingly sophisticated technologies that help
in evading the enemy's ever vigilant “eyes”.
“The future is bright, the future is stealth”
Stealth Technology is totally based on the EM wave propagation and reflection.RADAR technology plays a major role in military and others.For an object to be discovered in the RADAR it must be able to reflect back the EM waves that hit it.So stealth technology is totally based on this concept.
This presentation is also useful for STEALTH TECHNOLOGY.This presentation inckludes the methods of reducing the area of an object in the RADAR i.e.,to disappear the object by not visible in the RADAR
SEMINAR CREDITS:
SANKOJU YASHWANTH
Stealth aircrafts are aircraft that use stealth technology to avoid detection by employing a combination of
features to interfere with radar as well as reduce visibility in the infrared visual, audio, and radio frequency (RF)
spectrum. While no aircraft is totally invisible to radar, stealth aircraft prevent conventional radar from detecting
or tracking the aircraft effectively, reducing the odds of a successful attack. Stealth is the combination of passive
low observable (LO) features and active emitters such as Low Probability of Intercept Radars, radios and laser
designators. These are usually combined with active defenses such as chaff, flares, and ECM. Stealth refers to
the act of trying to hide or evade detection, For airplanes, stealth first meant hiding from radar. It is not so much
a technology as a concept that incorporates a broad series of technologies and design features. This paper shows
the development of stealthy airplanes which teaches several important lessons about technology. The first is that
often many different technologies like Nano-Technology with Aerodynamics must be combined to achieve a
desired outcome. An advance in one field, such as materials or aerodynamics, must be accompanied by advances
in other fields, such as computing, constructing or electromagnetic theory. The second lesson is that sometimes
trial and error techniques are insufficient and advances in mathematical theory are necessary in order to achieve
significant advances. Finally, stealth teaches the lesson that technology is never static - a "stealth breakthrough"
may only last for a few years before an adversary finds a means of countering it. So this paper deals with how to
handle the Stealth. This paper also shows how and where to use Nano-Technology.
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
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3. Radar Stealth Technology
• RADAR means “Radio Detecting And Ranging” and
STEALTH means “Avoiding Detection”.
• Whereas ‘Radar Stealth Technology’is used to prevent the detection
of aircrafts or planes from radar systems.
4. Working Of Radars
Calculation of location and shape
• The location and shape of the target is detected by using
DSP(Digital Signal Processing) methods.
5. Concept of RCS
• RCS means Radar Cross-section Area.
• Radar cross section is the measure of a target's ability to reflect radar
signals in the direction of the radar receiver.
• Target’s RCS(F) is visualized as the product of three factors:
F = Projected cross section x Reflectivity x Directivity.
6. Stealth Technology
• No aircraft is totally invisible to radar, stealth technology prevents
conventional radar from detecting or tracking the aircraft effectively.
• By employing a combination of features to interfere with radar as well as
reduce visibility in the infrared, visual and radio frequency (RF) spectrum
• Geometry:
• Avoiding orthogonal metal plates because this causes reflections.
10. Absorption of electromagnetic waves:
• Internal construction that must be re-entrant triangles, so that radar waves
reflecting off the internal faces and losing energy.
• Incoherent scattering +destructive interference+10dB of attenuation + the
pyramid shapes + maximize number of bounces.
11. • Coatings are applied on the surface of stealth aircraft.
• Iron ball paint:-
It contains tiny spheres coated with carbonyl iron or ferrite.
Avoiding Infrared Detection:
• Heat is developed when the machines in aircraft are working and also due
to friction of air.
• Use compressed gas or liquid nitrogen to cool their internal parts.
12. Preventing noise detection:
• Aircrafts use slow-turning propellers to avoid being heard by enemy troops
below.
• High altitude.
• High speed.
Applications:-
• Military Operations-
Secret operations which is confidential.
Emergency protecting.
To become a powerful weapon nation.
(a strong nation can maintain peace in any situation )
13. Conclusion:
• In Modern days this Stealth Technology is playing a vital role in
Military operations. Every fighter plane designs is claiming to have
some sort of stealth technology to avoid detection there by reducing
the odds of a successful attack.
• This Radar Stealth technology is bringing a revolution in military
operations of the world.
• Having own technology can save money and nation.
