Table of Contents
What are the ways stealth can be incorporated?
Modern methods include Radar jamming and deception. The term stealth in reference to reduced radar signature aircraft became popular during the late eighties when the Lockheed Martin F-117 stealth fighter became widely known. The first large scale (and public) use of the F-117 was during the Gulf War in 1991.
Where are stealth bombers based?
The B-2 bomber fleet has remained stationed at Whiteman AFB ever since Dec. 17, 1993. It has the capability of delivering both conventional and nuclear munitions. The aircraft has a crew of two pilots, a pilot in the left seat and a commander in the right.
How many countries have stealth aircraft?
At present, China and the U.S. are the only two countries that have concurrent stealth fighter programs. The PLAAF . . . views [stealth] technology as a core capability in its transformation from a predominantly territorial air force to one capable of conducting both offensive and defensive operations.
Is the f117 still in service?
The F-117 was the world’s first operational stealth aircraft, but it officially retired in 2008.
What is the modulating signal in radar?
For radar, the modulating signal is the rectangular pulse envelope (see Figure 2.4 ), and the carrier is the RF oscillations produced by the magnetron. The function of the demodulator or detector is to recover the modulation, as modified by the target reflections. Figure 2.27.
What type of wave is emitted from a radar transmitter?
While the radar transmitter is “on”, the wave which is emitted may be thought of as a CW wave, and therefore will conform to the principles in the following discussion. An electromagnetic wave may be represented in space as shown in the figure below.
How to increase the average return power of a radar antenna?
The average return power varies directly with the Pt. As a result, a doubling of the transmitted power (with no other changes) would double the average returned power. Cutting Pt in half would result in half the average return power. G is the gain of the radar antenna.
How has radar technology changed over time?
In all of the radar units which have been (and are being) utilized by the NWS, a great deal more than simply “detection” and “ranging” have taken place. Over the years, technological advances in materials, circuit design, high-speed devices, processing capabilities, and observations have combined to allow radar systems to be significantly improved.