|
Sky Shield
Sky Shield is an advanced airborne electronic warfare system for fighter jets developed by Rafael Advanced Defense Systems Rafael Advanced Defense Systems Ltd. ( he, רפאל - מערכות לחימה מתקדמות בע"מ, formerly Rafael Armament Development Authority), ("Rafael" from Hebrew acronym of "Authority for the Development of Armaments" - ) is an Israel ... of Israel. The electronic warfare pod is an all-inclusive multi-purpose escort jammer and electronic attack system. Sky Shield engages enemy radars in hostile environments, providing comprehensive electronic countermeasures against enemy threats. The system creates a corridor for multiple attacking aircraft, thus increasing aircraft survivability in time and providing attack options. The Sky Shield pod covers frequency spectrum range from D band to KU band and includes a digital interferometer system for signal detection, a DRFM based technique generator and a modular solid-state active electronically scanned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Warfare
Electronic warfare (EW) is any action involving the use of the electromagnetic spectrum (EM spectrum) or directed energy to control the spectrum, attack an enemy, or impede enemy assaults. The purpose of electronic warfare is to deny the opponent the advantage of—and ensure friendly unimpeded access to—the EM spectrum. EW can be applied from air, sea, land, and/or space by crewed and uncrewed systems, and can target communication, radar, or other military and civilian assets. The electromagnetic environment Military operations are executed in an information environment increasingly complicated by the electromagnetic spectrum. The electromagnetic spectrum portion of the information environment is referred to as the electromagnetic environment (EME). The recognized need for military forces to have unimpeded access to and use of the electromagnetic environment creates vulnerabilities and opportunities for electronic warfare in support of military operations. Within the informat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rafael Advanced Defense Systems
Rafael Advanced Defense Systems Ltd. ( he, רפאל - מערכות לחימה מתקדמות בע"מ, formerly Rafael Armament Development Authority), ("Rafael" from Hebrew acronym of "Authority for the Development of Armaments" - ) is an Israeli defense technology company. It was founded as Israel's National R&D Defense Laboratory for the development of weapons and military technology within the Israeli Ministry of Defense; in 2002 it was incorporated as a limited company. Rafael develops and produces weapons, military, and defense technologies for the Israel Defense Forces and for export abroad. All current projects are classified. History Rafael was established in 1948 as the Science Corps ( he, חיל המדע, known by the acronym HEMED, he, חמד) under the leadership of Shlomo Gur. It was renamed the Research and Design Directorate () in 1952. In 1952 David Ben-Gurion decided to split the activities of HEMED into two agencies. The pure scientific research was le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sky Shield Escort Jammer Pod
The sky is an unobstructed view upward from the surface of the Earth. It includes the atmosphere and outer space. It may also be considered a place between the ground and outer space, thus distinct from outer space. In the field of astronomy, the sky is also called the celestial sphere. This is an abstract sphere, concentric to the Earth, on which the Sun, Moon, planets, and stars appear to be drifting. The celestial sphere is conventionally divided into designated areas called constellations. Usually, the term ''sky'' informally refers to a perspective from the Earth's surface; however, the meaning and usage can vary. An observer on the surface of the Earth can see a small part of the sky, which resembles a dome (sometimes called the ''sky bowl'') appearing flatter during the day than at night. In some cases, such as in discussing the weather, the sky refers to only the lower, denser layers of the atmosphere. The daytime sky appears blue because air molecules scatter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Countermeasure
An electronic countermeasure (ECM) is an electrical or electronic device designed to trick or deceive radar, sonar, or other detection systems, like infrared (IR) or lasers. It may be used both offensively and defensively to deny targeting information to an enemy. The system may make many separate targets appear to the enemy, or make the real target appear to disappear or move about randomly. It is used effectively to protect aircraft from guided missiles. Most air forces use ECM to protect their aircraft from attack. It has also been deployed by military ships and recently on some advanced tanks to fool laser/IR guided missiles. It is frequently coupled with stealth advances so that the ECM systems have an easier job. Offensive ECM often takes the form of jamming. Self-protecting (defensive) ECM includes using blip enhancement Blip enhancement is an electronic warfare technique used to fool radar. When the radar transmits a burst of energy some of that energy is reflected off ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DRFM
Digital Radio Frequency Memory (DRFM) is an electronic method for digitally capturing and retransmitting RF signals. DRFM systems are typically used in radar jamming, although applications in cellular communications are becoming more common. Overview A DRFM system is designed to digitize an incoming RF input signal at a frequency and bandwidth necessary to adequately represent the signal, then reconstruct that RF signal when required. The most significant aspect of DRFM is that as a digital "duplicate" of the received signal, it is coherent with the source of the received signal. As opposed to analog "memory loops", there is no signal degradation caused by continuously cycling the energy through a front-end amplifier which allows for greater range errors for reactive jamming and allows for predictive jamming. A DRFM system may modify the signal prior to retransmitting which can alter the signature of the false target; adjusting its apparent radar cross section, range, velocity, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Electronically Scanned Array
An active electronically scanned array (AESA) is a type of phased array antenna, which is a computer-controlled array antenna in which the beam of radio waves can be electronically steered to point in different directions without moving the antenna. In the AESA, each antenna element is connected to a small solid-state transmit/receive module (TRM) under the control of a computer, which performs the functions of a transmitter and/or receiver for the antenna. This contrasts with a passive electronically scanned array (PESA), in which all the antenna elements are connected to a single transmitter and/or receiver through phase shifters under the control of the computer. AESA's main use is in radar, and these are known as active phased array radar (APAR). The AESA is a more advanced, sophisticated, second-generation of the original PESA phased array technology. PESAs can only emit a single beam of radio waves at a single frequency at a time. The PESA must utilize a Butler matrix ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazilian Air Force
"Wings that protect the country" , colours = , colours_label = , march = Hino dos Aviadores , mascot = , anniversaries = 22 May (anniversary) 22 April (fighter aviation day) , equipment = , equipment_label = , battles = Contestado War Lieutenants RevoltsConstitutionalist WarWorld War II Lobster WarTrês Passos GuerrillaCaparaó Guerrilla Araguaia Guerrilla WarOperation Traira , decorations = , battle_honours = , battle_honours_label = , flying_hours = , website = , commander1 = President Lula da Silva , commander1_label = Commander-in-Chief , commander2 = Paulo Sérgio Nogueira de Oliveira , commander2_label = Minister of Defence , commander3 = Carlos d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AMX International AMX
The AMX International AMX is a ground-attack aircraft jointly developed by Brazil and Italy. The AMX is designated A-11 Ghibli by the Italian Air Force and A-1 by the Brazilian Air Force. The Italian name, "Ghibli", is taken from the hot dry wind of the Libyan desert. During the early 1970s, Italian manufacturer Aermacchi conducted a design study on a prospective light ground attack aircraft, which was given the designation of ''MB-340''. During early 1977, the Italian Air Force issued a requirement for 187 new-build strike fighters, which were to replace its existing Aeritalia G.91 in the close air support. During 1980, the Brazilian government announced that they intended to participate in the program in order to provide a replacement for the Aermacchi MB-326. As a result of a memorandum between Italy and Brazil for the type's joint development in 1981, AMX International, an Italian-Brazilian joint venture, was formed to develop, manufacture, and market the aircraft. Deve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_Unloaded.jpg "Click for more on -> Electronic Warfare")
.jpg "Click for more on -> AMX International AMX")