DARPA

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Re: DARPA

Notapor Falcon el Sab Abr 28, 2012 9:50 am

DARPA XG. Su nombre técnico es netXt Generation program. El objetivo es desarrollar tecnologías y conceptos para mejorar el mantenimientos de las comunicaciones militares utilizando nuevos espectros de onda. En el 2005 Shared Spectrum Co. consiguió el primer contrato para la fase III.
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Re: DARPA

Notapor Falcon el Sab Abr 28, 2012 9:55 am

El EATR es un proyecto llevado a cabo conjuntamente entre Robotic Technology Inc. (RTI) y Cyclone Power Technologies Inc.
EATR es un vehículo robótico capaz de alimentarse con plantas, transformándolas en biomasa para usarlas como combustible para sí mismo, algo similar a lo que haría un animal herbívoro cualquiera. Cyclone Power Technologies afirmaron que EATR no estaba fabricado para poder consumir biomasa animal o humana y que el EATR posee sensores capaces de distinguir sobre que tipo de materiales tiene delante para consumir solo los adecuados. A pesar de eso, en los papeles del proyecto de las listas RTI se incluye como combustible la grasa de pollo.
El robot funciona con un motor de Cyclone, el cuál es un motor híbrido entre motor de combustión externa y un motor de Rankine basado en el ciclo Schoell. El motor es capaz de activar los movimientos del vehículo, además de ser utilizado para recargar las baterías que hacen funcionan los sensores, brazos y dispositivos auxiliares.

El EATR está programado para consumir ciertos tipos de vegetación, y sólo esos tipos de vegetación. EATR pueden ingerir biomasa con el fin de convertirlo en su propio combustible. EATR También puede utilizar otros combustibles, como gasolina, queroseno, aceite de cocina, o la energía solar. La compañía también incluye la grasa de pollo, como una de sus fuentes de combustible en las especificaciones generales del proyecto.
El sistema se prevé que consumirá por cada 100 millas de conducción (unos 160 kilómetros) unas 150 libras de vegetación (unos 68 kilogramos).

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Re: DARPA

Notapor Falcon el Jue May 10, 2012 5:08 pm

El sistema de defensa area mediante Laser líauido de alta energia [High Energy Liquid Laser Area Defense System (HELLADS)] es un arma que está, actualmente en desarrollo y que utiliza un laser de 150 kw para derribar misiles, cohetes y obuses. Los requerimientos del sistema son que éste debe pesar 750 kg y tener un volumen de 2 metros cúbicos.
Imagen

La responsabilidad de poner en marcha HELLADS ha sido el contratista Weaponeer Textron. El dispositivo no es más grande que una nevera, lo que permite montarlo prácticamente sobre cualquier vehículo. De hecho, DARPA piensa usarlo a bordo de aviones. Su pequeño tamaño le permite ser montado a bordo de un jet militar, desde donde podrá dispararse contra otros aviones, blancos en tierra o utilizarse para derribar misiles enemigos que se aproximen con malas intenciones. El equipo completo pesa unos 750 kilogramos. En general, los láseres de estado sólido son pequeños pero deben ser disparados con intervalos para evitar su sobrecalentamiento. En cambio, los que basan su funcionamiento en un líquido pueden disparar de forma continua, pero requieren de grandes y complejos equipos de refrigeración para no derretirse -literalmente- mientras disparan. En DARPA aseguran que HELLADS posee lo mejor de ambos mundos, y pesa “un orden de magnitud menos” de lo que pesaría un láser de estado sólido equivalente.

El director del proyecto, Don Woodbury, dice que el secreto del éxito de HALLADS se debe a una inteligente “combinación de la alta energía de un láser de estado sólido con el manejo térmico propio de los láser de estado líquido”.

Phil Coyle, del Center for Defense Information, no está demasiado convencido sobre la efectividad de este tipo de armas. No es que un láser de semejante potencia no sea un logro impresionante o que no tenga la capacidad de derretir un misil. Pero “una cosa es disparar a un blanco fijo, en un campo de pruebas, y otra muy diferente es lograr enfocar un punto determinado sobre un misil que se mueve a gran velocidad. Esto último es equivalente a tratar de encender leña húmeda con un fósforo”, dice. Puede que Coyle tenga razón. HELLADS es impresionante, pero quizás a la hora de utilizarlo en el campo de batalla resulte un fracaso. ¿Que pasaría si, sabiendo que EE.UU. posee un láser como esta, el enemigo cubre sus misiles con una pintura reflectante? Como ocurre a menudo, las cosas “en el mundo real” pueden ser bastante diferentes a lo que parecen en el tablero de dibujo de un ingeniero. Se requiere una gran dosis de “magia informática” para mantener enfocado un láser que se mueve a Match 2 o 3 sobre un pequeño y escurridizo blanco que se acerca zigzagueando a una velocidad similar. Sin embargo, en DARPA están felices con HELLADS. El tiempo dirá si se trata solamente de otro artilugio loco creado por la agencia, o se convierte en un instrumento de destrucción más de la caja de Pandora que atesora el ejército.


Para saber un poco más de el empleo del LASER en el campo de batalla, podéis leer este documento que encontré; está escrito por un militar argentino.
http://www.ara.mil.ar/archivos/Docs/011(2).pdf
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Re: DARPA

Notapor poliorcetes el Mar May 15, 2012 2:02 pm

http://www.gizmag.com/northrop-grumman-laser/22472/

Northrop Grumman tests new laser weapon
By David Szondy


The Gamma laser was tested against the skin and components of a BQM-7 drone

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Practical laser weapons came another step closer to reality recently as defense contractor Northrop Grumman tested the latest version of its Firestrike solid-state lasers. On May 1st, the company announced that it had completed trials at its Redondo Beach laboratory of a more powerful and rugged generation of its slab lasers, that combine with improved sensor capacities to create a general laser component that can provide the military with a wide range of greatly enhanced defensive and offensive laser capabilities.

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The dream of a laser “death ray” has been around since the invention of the laser in the 1960s. This isn’t surprising, since lasers are coherent light beams with enough focus to bounce a beam off the Moon, and a laser can concentrate enough energy on a target to burn through steel. The latter was a common laboratory trick in those early days, where engineers would show off the power of the laser by cutting through razor blades so often that an early unit for measuring laser power was in “Gillettes."

Cutting through a razor blade on a bench top and piercing armor plate or bringing down a missile in flight are very different things, however. The potential of laser weapons was offset by problems with power, waste heat, aiming, atmospheric interference, and the bulk and fragility of the apparatus, to name just a few. Though laser weapons became a staple of science fiction, in the real world lasers were relegated to industry and medicine with the only military applications being in range finding and communications.

However, this didn’t mean that the military lost all interest in laser weapons. In the1980s, the United States poured billions of dollars into anti-ballistic missile lasers, the British deployed a system for dazzling enemy pilots and the Soviets experimented with a tank armed with a laser weapon. By the 1990s, the Americans had installed an anti-missile laser inside a Boeing 747 for field tests and in the 21st century, Coalition forces in Iraq and Afghanistan were using lasers to detonate IEDs ... and yet, practical weapons remained elusive. Despite setbacks, the American airborne laser, for example, had considerable success, but the system was based on a laser that used highly toxic chemicals to generate the beam. The equipment was expensive, extremely fragile, dangerous to be around, and a logistical nightmare.

The Firestrike laser was developed with a different philosophy than previous efforts. Instead of building an extremely powerful laser and then figuring out how to make it practical, Northrop Grumman took the approach of making small, rugged lasers and then working on how to scale them up to practical size. The Firestrike system tries this by using a “slab” laser, in which the lasing element of the device is a slab of glass or crystal about the size of a microscope slide that’s been doped with a rare earth element such as neodymium or chromium. This is pumped with a light source, such as a flash lamp, and the photons inside the slab are induced to “cascade," that is, move in the same direction, and generate a laser.

Gamma

The latest Firestrike laser, named Gamma, generates a stable, high-quality beam for 1.5 hours. Its power output is only 13.3 kilowatts, which isn’t nearly large enough to do much on its own, but the recent tests did prove the power and ruggedness of the system. The Gamma is smaller than previous Firestrikes, weighing in at only 500 pounds (227 kg) and measuring about the same size as a pair of countertop microwaves.

The Gamma’s small size and low power may give the impression that it doesn’t come to much on the battlefield, but Northrop Grumman’s design makes the Gamma “chainable." That is, individual Gamma units can be linked together to combine their individually weak lasers into one extremely powerful, high-quality beam. By linking together the slab laser elements from several Gamma units, a laser of 100 kilowatts, the lower threshold for a battlefield laser, that weighs in at 1.5 (1.4 tonnes) tons and requires one megawatt of power to operate, is possible.


A view of how the Firestrike laser system can be scaled

One and a half tons seems pretty heavy for a weapon, but mounted in an armored vehicle, a warship or at a land base, it’s fairly light. The Gamma is also an improvement on previous iterations of the Firestrike system in that the laser is much simpler and more rugged with fewer components and new mounts that greatly reduce vibration.

The tests carried out at the Redondo Beach laboratory consisted of firing the Gamma laser at the skin of a surplus BQM-7 drone and other components at short range, under conditions that simulated a full-scale combat laser operating at a range of several miles. "The Gamma laser was tested at a beam quality of 1.4, which beat the design goal of 1.5, and we expect it to keep improving," said Dan Wildt, vice president, directed energy systems, Northrop Grumman Aerospace Systems. "A perfect beam quality is 1. Owing to its excellent beam quality, the 13.3 kilowatt Gamma is also brighter than its design goal, meaning it can put more power on target at range.”

As far as applications of the Gamma laser and the Firestrike line in general, Wildt said, "The Firestrike laser, announced in 2008, forms the backbone near-term laser weapon systems from Northrop Grumman. Combined with advanced electro optical and/or infrared sensors, Firestrike line replaceable units and their subsystems can provide military services with active defense, offensive precision strike and enhanced situational awareness capabilities, all in the same weapon system."

Given the Pentagon’s continuing interest in lasers and the increasing need to develop defenses against new, faster missiles of all grades, it appears as if the age of the laser weapon is fast approaching.

One of the Firestrike tests can be seen in the video below.


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Re: DARPA

Notapor Falcon el Mié May 16, 2012 8:15 pm

Exoesqueleto humano (XOS)

La compañía Raytheon Sarcos de Salt Lake (Utah, EE.UU.), financiada por DARPA, ha presentado en sociedad la segunda generación de exoesqueletos, bautizada como Sarcos XOS 2, una estructura robótica con tanta fuerza y resistencia que convierte prácticamente en un superhombre a quien la lleve. Si la primera versión del traje ya permitía, por ejemplo, levantar cien kilos como si solo fueran uno o mover cajas llenas de municiones a gran velocidad, la segunda es aún más ligera y resistente, consume la mitad de energía y, lo más importante, es mucho más autónoma. Es decir, que no requiere de un cable que conecte el traje a una fuente de energía.

Imagen


El primer exoesqueleto presentado por Raytheon Sarcos fue Sarcos XOS, y ya mostraba unas capacidades increíbles. Permitía a quien lo vistiera levantar un peso de cien kilos como si se tratara de uno. Además, era flexible, y se podía correr o saltar con gran facilidad. El nuevo XOS 2 tiene todo eso, y va aún más allá. Accionado por un sistema hidráulico de alta tensión, es más resistente y gasta la mitad de energía, pero su principal innovación es que tiene más capacidad de autonomía. El objetivo final es eliminar el cordón de alimentación.

Imagen

Video sobre el traje
http://www.youtube.com/watch?feature=pl ... UpxsrlLbpU
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Re: DARPA

Notapor champi el Sab Jul 07, 2012 9:09 am

DARPA prueba con éxito una cámara de categoría gigapixel: http://defpro.com/news/details/37176/?S ... 227c7e85d8
14:20 GMT, July 6, 2012 DARPA recently released an image of a gigapixel camera currently being developed by DARPA’s Advanced Wide FOV Architectures for Image Reconstruction and Exploitation (AWARE) program (see http://goo.gl/b75Ji - high resolution). As part of the program, DARPA successfully tested cameras with 1.4 and 0.96 gigapixel resolution at the Naval Research Lab in Washington, DC. The gigapixel cameras combine 100-150 small cameras with a spherical objective lens. Local aberration correction and focus in the small cameras enable extremely high resolution shots with smaller system volume and less distortion than traditional wide field lens systems.

The DARPA effort hopes to produce resolution up to 10 and 50 gigapixels—much higher resolution than the human eye can see. Analogous to a parallel-processor supercomputer, the AWARE camera design uses parallel multi-scale micro cameras to form a wide field panoramic image.

The AWARE program is developing new approaches and advanced capabilities in imaging to support a variety of Department of Defense missions.

For more information, please visit the program page at http://goo.gl/rsugl.
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Re: DARPA

Notapor champi el Mié Mar 19, 2014 8:34 pm

DARPA preselecciona a cuatro candidatos para el programa VTOL Experimental Plane (VTOL X-Plane): http://www.darpa.mil/NewsEvents/Release ... 03/18.aspx
March 18, 2014

DARPA tasks four companies with designing new aircraft to revolutionize vertical takeoff and landing (VTOL) flight capabilities

For generations, new designs for vertical takeoff and landing aircraft have remained unable to increase top speed without sacrificing range, efficiency or the ability to do useful work. DARPA’s VTOL Experimental Plane (VTOL X-Plane) program seeks to overcome these challenges through innovative cross-pollination between the fixed-wing and rotary-wing worlds, to enable radical improvements in vertical and cruise flight capabilities. In an important step toward that goal, DARPA has awarded prime contracts for Phase 1 of VTOL X-Plane to four companies:

Aurora Flight Sciences Corporation
The Boeing Company
Karem Aircraft, Inc.
Sikorsky Aircraft Corporation


“We were looking for different approaches to solve this extremely challenging problem, and we got them,” said Ashish Bagai, DARPA program manager. “The proposals we’ve chosen aim to create new technologies and incorporate existing ones that VTOL designs so far have not succeeded in developing. We’re eager to see if the performers can integrate their ideas into designs that could potentially achieve the performance goals we’ve set.”

:arrow: VTOL X-Plane seeks to develop a technology demonstrator that could:

Achieve a top sustained flight speed of 300 kt-400 kt
Raise aircraft hover efficiency from 60 percent to at least 75 percent
Present a more favorable cruise lift-to-drag ratio of at least 10, up from 5-6
Carry a useful load of at least 40 percent of the vehicle’s projected gross weight of 10,000-12,000 pounds


All four winning companies proposed designs for unmanned vehicles, but the technologies that VTOL X-Plane intends to develop could apply equally well to manned aircraft. Another common element among the designs is that they all incorporate multipurpose technologies to varying degrees. Multipurpose technologies decrease the number of systems in a vehicle and its overall mechanical complexity. Multipurpose technologies also use space and weight more efficiently to improve performance and enable new and improved capabilities.

The next major milestone for VTOL X-Plane is scheduled for late 2015, when the four performers are required to submit preliminary designs. At that point, DARPA plans to review the designs to decide which to build as a technology demonstrator, with the goal of performing flight tests in the 2017-18 timeframe.

Foto de algunos bocetos: http://www.darpa.mil/uploadedImages/Con ... _Large.jpg
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Re: DARPA

Notapor champi el Mar Abr 22, 2014 7:38 pm

Motos silenciosas con motor híbrido para raids furtivos: http://www.wired.com/2014/04/hybrid_bikes/
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Re: DARPA

Notapor champi el Vie Ene 02, 2015 8:27 pm

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Re: DARPA

Notapor poliorcetes el Mar Ene 06, 2015 10:04 am

qué curioso que siendo lo más de la vanguardia no usen linux o unix para el servidor web
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Re: DARPA

Notapor Gus el Lun Ene 12, 2015 11:38 pm

poliorcetes escribió:qué curioso que siendo lo más de la vanguardia no usen linux o unix para el servidor web


.NET al poder :D
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Re: DARPA

Notapor MedalOfHorror el Jue Abr 30, 2015 12:38 am

quieren quitarnos a los pilotos y ahora a los francotiradores :d2




sobre el bicho:


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Re: DARPA

Notapor Orel el Vie May 01, 2015 9:45 am

quieren quitarnos a los pilotos y ahora a los francotiradores

Es una evolución lógica. Se han ido guiando municiones cada vez más y más pequeñas, era lógico que llegase el momento de las balas. :mrgreen: Por ahora para francotiradores porque serán carísimas, pero como todo: lo mismo a futuro (o lo mismo no) se abarata tanto que las usa casi todo fusilero (o robot fusilero, jeje), igual que se está generalizando el armamento guiado en aviación.
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Re: DARPA

Notapor champi el Vie Ago 07, 2020 3:30 pm

Ronda final de la competición de DARPA "AlphaDogfight": https://www.darpa.mil/news-events/2020-08-07
OUTREACH@DARPA.MIL 8/7/2020
...
Trials 1 and 2, held in November 2019 and January 2020, respectively, were hosted in person at APL. Teams conducted subsequent virtual “scrimmages” in May and July to hone their algorithms leading up to Trial 3.

Each day of Trial 3 will have a different focus with activities broadcast throughout the day on ADT TV:

Day 1 features each of the eight teams flying their algorithms against five APL-developed adversary AI algorithms.
On Day 2, teams fly against each other in a round-robin tournament.
On Day 3, the top four teams compete in a single-elimination tournament for the AlphaDogfight Trials Championship. The champion team then flies against an F-16 pilot to test the AI’s abilities against a human.
...
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Re: DARPA

Notapor champi el Jue Ago 27, 2020 9:19 am

Contrato de la US Navy para desarrollar un detector electromagnético de banda ancha (26/8/2020): https://www.defense.gov/Newsroom/Contra ... e/2326327/
...
S2 Corp., Bozeman, Montana, is awarded a $9,003,679 cost-plus-fixed-fee contract (N65236-20-C-8019) for a Defense Advanced Research Projects Agency (DARPA) project to prototype and demonstrate a broadband, electro-magnetic spectrum receiver system. The contract includes an 18-month base period and an 18-month option period. The option period, if exercised, would bring the cumulative value of this contract to an estimated $20,964,010. Fiscal 2020 research, development, test and evaluation funds in the amount of $4,501,840 will be obligated at the time of award. Work will be performed in Bozeman, Montana (85%); Goleta, California (9%); Boulder, Colorado (4%); and Clarksville, Maryland (2%), and is expected to be completed in February 2022. If the option is exercised, work could continue until August 2023. Contract funds will not expire at the end of the current fiscal year. The contract was competitively procured by full and open competition via DARPA broad agency announcement HR0011-20-S-0005, posted on the beta.sam.gov (formerly Federal Business Opportunities) website, with 24 timely offers received. Naval Information Warfare Center Atlantic, Charleston, South Carolina, is the contracting activity.
...
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