This paper investigates a new approach for the guidance and control of an autonomous underwater vehicle (AUV). An integrated system is developed and simulated involving a proportional navigation guidance (PNG) law and model predictive control (MPC). The classical PNG law for missile systems has been tailored to guide the AUV by generating reference headings. MPC is used to track the reference t...

Since the Gulf war, defense missile systems against tactical ballistic missiles have been highlighted and the author also have published some studies. Recently some studies also have appeared, however, it seems that the threat of anti-surface-missiles (ASMs) to current ground sites and its countermeasures have not been sufficiently studied to date. A typical medium or long range surface-to-air ...

The last-ditch defence against the anti-ship missile is the close-in weapon system (CIWS), which takes the form of ultra-short range lightcalibre guns by putting a “wall of lead” in the path of the oncoming missile. This is after the missiles have “leaked” through the layers of hardkill and softkill defences. Systems like the American Phalanx, the Dutch Goalkeeper or the new German Millennium G...

On the morning of February 24, 2022, when Russian military entered Ukraine and launched air missile raids on targets it detected in depths this country, a war started east Europe. As result between two world’s largest grain producers, global crisis is taking place. Turkey has long sought to emphasize connectivity strengthen its strategic position at intercontinental crossroads Europe Asia. Func...

In July 1995, the world saw the most serious confrontation between China and Taiwan since the cease-fire between two sides in the late 1950s. After the United States decided to issue visa to Taiwan’s President Lee Teng-hui to allow him to make a “private” visit to his alma mater, Cornell University, the Chinese government responded immediately by announcing a series of missile tests and militar...

An interior trajectory simulation of the canister launched missiles has been developed with the help of FLUENT. One of the special features of this simulation is the method by which the coupled three-phase problem is reduced to solving the fluid equations only. Several new source terms describing the influence of droplets and particles on gas have been created in the present case and added to t...

underwater acoustic wireless sensor network (uawsn) use acoustic signalsto transmit data. acoustic signals in underwater environment have high bit errorrate, long propagation delay and limited bandwidth. another constraint in uwasnis energy. due to these constraints, design of energy and bandwidth efficient andpropagation delay aware mac protocol is a great challenge in uwasn.underwater sensor ...

Missile pulmonary emboli are rare sequelae of traumatic entry of projectile missiles-generally bullets or bullet fragments-in which access to the systemic venous circulation is established by the missile, making it possible for the missile to migrate to the pulmonary arteries. In the case introduced here, a 24-year-old male presented to the ER with a gunshot wound to the abdomen. In the early c...