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Dynamic Network Adaptation for Mission Optimization (DyNAMO) - DARPA
The Dynamic Network Adaptation for Mission Optimization (DyNAMO) program is developing and testing technologies that enable adaptive, mission-responsive networking among diverse airborne platforms in contested environments.
Darpa  spectrum-efficiency  RF-Mirrors 
september 2019 by pierredv
Colosseum: A Battleground for AI Let Loose on the RF Spectrum | 2018-09-15 | Microwave Journal
"In this article, we discuss the design and implementation of Colosseum, including the architectural choices and trades required to create an internet-based radio development and test environment of this scope and scale."
MicrowaveJournal  DARPA  Colosseum  AI  RF  simulation  mirror-worlds 
september 2018 by pierredv
Enabling a GEO-NGEO Hybrid System - Northern Sky Research, Jul 2018
"The Military segment has, historically, primarily been served by GEO satellites for execution of critical applications, including intelligence gathering, navigation and communication. GEO systems, by nature, offer the advantage of significant coverage via a single satellite, especially with the advent of GEO-HTS satellites. On the other hand, latency and significant CAPEX have always been limitations of the GEO architecture. These drawbacks have given rise to the emerging trend of LEO and MEO constellations (NGEO) that can offer low latency and lower cost per satellite. However, constellations have their own set of constraints, with system complexity, ground infrastructure costs and frequency spectrum coordination, to name a few. Considering both, the shortcomings as well as the strengths of each system, could this perhaps be the start of an integration between GEO and LEO/MEO operators with a hybrid GEO-NGEO system on the rise? "

"Keeping the overall system costs low, however, is where it gets complex for NGEO framework. Although the manufacturing and launch costs per satellite are relatively lower, the need for a considerable number of satellites, the associated replenishment costs and the ground infrastructure expenses – all intensify the overall system cost."

"NSR estimates just over 1% of total revenues for gov/military will come from Non-GEO constellations by 2027."

"[TCO] is a key driver for NGEO constellations, military and otherwise, and is as well one of the biggest challenges for the operators presently. Simply put, either the expenses, mostly CAPEX, need to drop or the revenues need to grow for the business case to sustain. This is where a GEO-NGEO Hybrid architecture could prove pragmatic."

"Intelsat’s and OneWeb’s unsuccessful attempt towards a strategic alliance was one example of this hybrid system. GEO operators JSAT and Hispasat have similarly announced strategic investment in LEO constellations including LeoSat."

"Another level of integration, perhaps more technically innovative, and therefore challenging, is a system where GEO satellites can handle the TT&C operations for LEO constellations and act as the base station control system of the network."
NSR  GEO  NGSO  Intelsat  OneWeb  LeoSat  SES  O3b  satellite  constellations  military  DARPA  business  market-research 
july 2018 by pierredv
Industry Partners Help Establish Consortium for Satellite Servicing Standards, SWF, June 2018
The Secure World Foundation (SWF) is proud to be part of a team that recently won a contract from the Defense Advanced Research Projects Agency (DARPA) to help address the lack of standards for cooperative on-orbit servicing. In November 2016, DARPA released a request for proposal for the Consortium for Execution of Rendezvous and Servicing Operations (CONFERS) Program. On October 3, 2017, a team consisting of SWF, the University of Southern California’s Space Engineering Research Center (SERC), and the Space Infrastructure Foundation (SIF), and led by Advanced Technology International (ATI), was awarded the initial phase of a multi-year contract to establish the Consortium.
SWF  DARPA  space 
june 2018 by pierredv
DARPA asks industry to develop small, secure military satellites to operate in low-Earth orbit (LEO) - Apr 2018
"U.S. military researchers are asking for industry's help in developing a constellation of small, secure, and affordable military satellites that not only are able to operate in low-Earth orbit (LEO), but also that capitalize on modern commercial satellite technologies.... the Blackjack program to develop SWaP-optimized military communications and surveillance satellites designed to operate in LEO."

"The Blackjack program seeks to develop enabling technologies for a global high-speed network backbone in LEO that enables networked, resilient, and persistent military payloads that provide infinite over-the-horizon sensing, signals, and communications capabilities."

"The Blackjack program has three primary objectives:
-1- develop payload and mission-level autonomy software with on-orbit distributed decision processors that can operate autonomously with on-orbit data processing, and perform shared tasks on-orbit;
-2- use advanced commercial manufacturing for military payloads and the spacecraft bus, including high-rate manufacturing using commercial off-the-shelf (COTS)-like parts, reduced screening and acceptance testing for individual spacecraft, and reduced expectations for spacecraft life; and
-2- demonstrating satellite payloads in LEO that operate on par with current GEO systems with the spacecraft at costs of less than $6 million per satellite."

"The goal is to develop a 60-to-200-satellite constellation operating at altitudes of between 310.7 miles and 807.8 miles"
DARPA  LEO  satellite  DoD 
may 2018 by pierredv
SDR's Hard Side Shown in DARPA Hackfest | EE Times Mar 2018
"During the hackfest, we saw teams struggle to master the combination of SDR and UAV technology against the background of real-world phenomenon. Teams found that no matter how much FOSS is applied, they still had to confront a diversity of challenges, among them uncertainty and latency in moving the UAVs, computational limitations of embedded systems, different processor capabilities, and various issues with radio signals.

Teams experienced such challenges throughout the event. For example, the indoor environment by the range itself fluctuated as the doors opened and closed, or as people moved around. That led to ugly radio frequency propagation issues from the concrete walls that surrounded the radios. Using an automatic system for power control or executing similar adaptive behaviors could have helped overcome the environmental changes."
SDR  EETimes  DARPA  UAS  drones 
march 2018 by pierredv
GPS guidance can be fooled, so researchers are scrambling to find backup technologies
" ... government and industry researchers are developing systems and algorithms to collect many different sources of data that could help determine a user's position, assist with navigation or establish the time. Together, those various data sources can be used to double-check the answer given by GPS — or, in the absence of GPS, potentially might be enough to triangulate a location.

One of those data sources could be Satellite Time and Location, also known as STL, a signal delivered by Satelles that can determine position and time independent of GPS.

The service, which began in 2016, was integrated onto a commercial network of satellites operated by Iridium Communications Inc."

"At DARPA, researchers are working on a project called Adaptable Navigation Systems that would rely on sensors to collect other signals, such as those from mobile networks or commercial satellites. That information would then be translated by the algorithm, fused together, and a location and time would be determined. "

"Technology being tested in El Segundo by Aerospace Corp. could eventually pull in even more diverse data sources, such as signals from television antennas, radio stations or even visual imagery, and match those to a location."
GPS  LATimes  Iridium  DARPA 
march 2018 by pierredv
Can the use of a side channel revolutionise spectrum sharing? | PolicyTracker: Feb 2018
Spectrum Collaboration Challenge

In the competition, organised by the US Defense Advanced Research Projects Agency (DARPA), several different types of radios operate in a shared frequency band and the challenge for the participating teams is to co-operate in the most efficient manner by making use of a side channel. This separate channel is used to send real-time data about how each network operates and sensing data from the RF environment, hopefully enabling the radios to work around each other. The aim is to make the most efficient use of the spectrum while preventing interference.
PolicyTracker  DARPA  SC2 
february 2018 by pierredv
DARPA's AI Spectrum Management Challenge Completes its First Round - IEEE Spectrum Dec 2017
"19 teams qualified to compete in the first, year-long round of the challenge, which will ultimately last for two more years. Last January, DARPA opened the doors for the competition, inviting any applications from teams who thought they were up to the task. Thirty teams qualified and have had access to the Colosseum for the past year. They’ve gone head to head in round-robin style scrimmages each month to narrow the field to the 19 that competed in the last series of contests that ended on 13 December."
DARPA  spectrum  research 
january 2018 by pierredv
The Radio Frequency Spectrum + Machine Learning = A New Wave in Radio Technology
"The radio frequency spectrum is becoming increasingly crowded and a new DARPA program will examine how leading-edge machine learning can help understand all the signals in the crowd"

“What I am imagining is the ability of an RF Machine Learning system to see and understand the composition of the radio frequency spectrum – the kinds of signals occupying it, differentiating those that are ‘important’ from the background, and identifying those that don’t follow the rules,” said Tilghman.

The RFMLS program features four technical components that would integrate into future RFML systems:

Feature Learning: ...
Attention and Saliency: ...
Autonomous RF Sensor Configuration: ...
Waveform Synthesis: ...
DARPA  AI  RF  spectrum  machine-learning 
november 2017 by pierredv
I-Connect007 :: Article The Radio Frequency Spectrum + Machine Learning = a New Wave in Radio Technology
" there now is a need to apply ML to the invisible realm of radio frequency (RF) signals, according to program manager Paul Tilghman of DARPA’s Microsystems Technology Office. To further that cause, DARPA today announced its new Radio Frequency Machine Learning Systems (RFMLS) program."

“What I am imagining is the ability of an RF Machine Learning system to see and understand the composition of the radio frequency spectrum – the kinds of signals occupying it, differentiating those that are ‘important’ from the background, and identifying those that don’t follow the rules,” said Tilghman.

"stand up an RF forensics capability to identify unique and peculiar signals amongst the proverbial cocktail party of signals out there"

"The RFMLS program features four technical components that would integrate into future RFML systems:"
= feature learning
= attention and saliency
= autonomous RF sensor configuration
= waveform synthesis
machine-learning  ML  DARPA  enforcement  forensics  mirror-worlds  *  spectrum 
september 2017 by pierredv
Service Academies Swarm Challenge Pushes the Boundaries of Autonomous Swarm Capabilities, May 2017
"U.S. Naval Academy wins three-day tournament over U.S. Military Academy and U.S. Air Force Academy in experiment designed to develop innovative tactics for large groups of unmanned aerial vehicles"

“The teams absolutely achieved their goal for this event by demonstrating 25-on-25 mixed swarms of fixed-wing and quad-rotor aircraft conducting swarm-on-swarm battles,” said Timothy Chung, the DARPA program manager leading the research effort. “The Cadets and Midshipmen developed innovative tactics for these highly autonomous swarms and demonstrated those tactics in live-fly experiments. It was a phenomenal success.”
Darpa  drones 
august 2017 by pierredv
Beyond Scaling: An Electronics Resurgence Initiative, June 2017
"The new initiative comes at a time when the microsystems technology community is facing an array of long-anticipated obstacles to its relentless and storied decades-long march of progress."

"By focusing on the development of new materials for use in electronic devices, new architectures for integrating those devices into complex circuits, and software and hardware design innovations for transforming microsystem designs into reality far more efficiently than ever before, the initiative aims to ensure continued improvements in electronics performance even without the benefit of traditional scaling."

Three areas
1. materials
2. architecture
3. design
Darpa  MooresLaw 
august 2017 by pierredv
World’s Most Powerful Emulator of Radio-Signal Traffic Opens for Business, April 2017
"New electronic simulation forum for wireless communication will host much of DARPA’s Spectrum Collaboration Challenge"

Paul Tilghman: “By contrast, SC2 is asking a group of radios that weren’t designed to work together to learn how to optimize spectrum capacity in real-time, and is relying on artificial intelligence to find and take advantage of ‘gaps’ and other opportunities to increase efficiency. You can’t satisfactorily learn how to solve this puzzle unless you address it at scale, and that’s why the Colosseum is such a critical part of the solution.”

"By the numbers, the Colosseum testbed is a 256-by-256-channel RF channel emulator, which means it can calculate and simulate in real-time more than 65,000 channel interactions among 256 wireless devices. Each simulated channel behaves as though it has a bandwidth (information content) of 100 MHz, which means the testbed supports 25.6 GHz of bandwidth in any instant. Moreover, each channel’s transmission and reception frequency is tunable between 10 MHz (as in broadcast FM radio) and 6 GHz (as in WiFi)."
DARPA  SC2  mirror-worlds  simulation  modeling 
august 2017 by pierredv
DARPA Spectrum Collab Challenge, slides for Day 1, 11 Aug 2016
"The world’s first collaborative machine-intelligence
competition to overcome spectrum scarcity"
DARPA  spectrum  challenge 
october 2016 by pierredv
DARPA | Spectrum Collaboration Challenge
The DARPA Spectrum Collaboration Challenge (SC2) is the first-of-its-kind collaborative machine-learning competition to overcome scarcity in the radio frequency (RF) spectrum. Today, spectrum is managed by dividing it into rigid, exclusively licensed bands. This human-driven process is not adaptive to the dynamics of supply and demand, and thus cannot exploit the full potential capacity of the spectrum. In SC2, competitors will reimagine a new, more efficient wireless paradigm in which radio networks autonomously collaborate to dynamically determine how the spectrum should be used moment to moment.
DARPA  spectrum  challenge  machine-learning 
october 2016 by pierredv
The Future of Spectrum Sharing with Machine Learning – ElenaNeira.com
DARPA sees artificial intelligence’s machine learning enabling on-the-fly sharing of spectrum at “machine” timescales. It is announcing a 3-year competition, starting in 2017, to identify the best collaborative – not competitive – noble ways to manage spectrum beyond current band assignments and static allocation schemes.
DARPA  Elena-Neira  AI  spectrum  spectrum-sharing  ML 
september 2016 by pierredv
Detecting Cybersecurity Threats by Taking the Grid's Pulse - IEEE Spectrum July 2016
"DARPA teams are building grid defenses using phasor measurement units that combine GPS and power sensors"
"Power quality expert Alex McEachern set out to build an advanced power sensor for utility distribution grids, and accidentally produced a promising tool to protect power grids from cyber attack."
"RADICS teams must fuse multiple data streams in real time to provide early warning of a cyber attack. Today's best intrusion detection schemes watch for errant commands on industrial control systems. McEachern’s equipment offers a non-traditional approach: watching for irregularities in the physical behavior of the grid itself. "
"PMUs employ GPS to timestamp readings of voltage, current, and their phase angles (i.e. the position of the voltage and current waves in their 60-hertz cycle). Thanks to the timestamps, readings from across grids spanning millions of square kilometers can be synchronized."
IEEE-Spectrum  energy  utilities  cybersecurity  DARPA  GPS  ARPA-E 
august 2016 by pierredv
Fact Sheet: Administration Announces an Advanced Wireless Research Initiative, Building on President’s Legacy of Forward-Leaning Broadband Policy | whitehouse.gov
"NSF today is committing $50 million over the next 5 years, as part of a total $85 million investment by NSF and private-sector entities, to design and build four city-scale advanced wireless testing platforms, beginning in FY 2017. "
“DARPA is announcing its plans to demonstrate the viability of the technologies being developed for its latest Grand Challenge, the Spectrum Collaboration Challenge (SC2), within the testing platforms being announced today.”
"This fall, ITS will be sponsoring undergraduate and graduate student wireless spectrum research that will utilize the spectrum test bed that ITS is developing in collaboration with the University of Colorado-Boulder (CU-Boulder) to span the Federal and university campuses."
research  NSF  test-cities  NIST  ITS  DARPA 
july 2016 by pierredv
US to follow EU in awarding cash prizes for spectrum innovation - PolicyTracker Feb 2016
"A bill proposed in the US Congress would give the National Telecommunications and Information Administration (NTIA) and other national organisations powers to run spectrum competitions." Also mentions DARPA and EU prizes
PolicyTracker  prizes  spectrum-sharing  spectrum  Jessica  Rosenworcel  NTIA  DARPA 
february 2016 by pierredv
Uncluttering the spectrum by putting it on the map -- Defense Systems Nov 2015
"DARPA recently gave Lockheed Martin an $11.8 million contract for Phase 3 of RadioMap, during which the contractor is to build on the work in phases 1 and 2 to develop a working system capable of transitioning to the military services."
visualization  spectrum  RadioMap  DARPA 
november 2015 by pierredv
DARPA wants more efficient, jam-resistant RF communications -- Defense Systems
"For over a century the military has used radio frequencies for communications, command and control, navigation and radar detection. As the RF spectrum gets more crowded, and as the Defense Department’s reliance on it increases, the military has to deal with two problems: malicious jamming and signal fratricide. In an effort to find solutions to these problems, the Defense Advanced Research Projects Agency has released a presolicitation for advanced microsystems and techniques for jamming-resistant RF communications under its Hyper-wideband Enabled RF Messaging (HERMES) program."
DARPA  HERMES  jamming  RF  communications 
july 2014 by pierredv
Advanced RF Mapping (Radio Map)
John Chapin "DARPA’s Advanced RF Mapping (RadioMap) program seeks to provide real-time awareness of radio spectrum use across frequency, geography and time. The goal is to provide a map that gives an accurate picture of spectrum use in complex environments. With this information, spectrum managers and automatic spectrum allocation systems can operate much more efficiently, reducing the problems caused by spectrum congestion and enabling better mitigation of interference problems. The program plans to provide this information in part by using radios deployed for other purposes, like data and voice communications systems"
DARPA  spectrum  maps  sensors 
march 2014 by pierredv
Introducing WildCat - YouTube
"WildCat is a four-legged robot being developed to run fast on all types of terrain. So far WildCat has run at about 16 mph on flat terrain using bounding and galloping gaits. The video shows WildCat's best performance so far. WildCat is being developed by Boston Dynamics with funding from DARPA's M3 program."
robotics  DARPA  video  Boston  Dynamics 
october 2013 by pierredv
End of Moore's Law: It's not just about physics | Business Tech - CNET News
Bob Colwell, DARPA: "[It takes] huge amounts to build the fab plants, and yet more...to pay for the design teams to design new chips. Intel makes these investments, which are in the [billions of dollars], because they expect to reap way more [billions of dollars] in profits in the following years. But if there is doubt that those profits will arrive, and possibly if they just doubt they can come up with the necessary silicon improvements, they may not want to make the investment at all. Should a major player like Intel make such a call, that would effectively end Moore's Law all by itself, because then the various companies that make the super expensive tools for chip production will themselves not make the investments needed to keep Moore's Law alive."
Moore's  Law  computing  ex  CNET  DARPA  silicon 
august 2013 by pierredv
GPS jamming: Out of sight | The Economist July 2013
"EVERY day for up to ten minutes near the London Stock Exchange, someone blocks signals from the global positioning system (GPS) network of satellites. The most likely culprit ... is a delivery driver dodging his bosses’ attempts to track him." "In April South Korea announced plans for a network of 43 eLoran (enhanced long-range navigation) ground-based radio towers, based on technology first used in the second world war. It uses a far stronger signal than GPS, and should give pilots and ships’ captains a safer alternative by 2016. With Chinese and Russian help, South Korea hopes to expand coverage across the region. Britain’s General Lighthouse Authorities (GLA) are following suit with seven new eLoran stations. " "DARPA has an experimental “single-chip timing and inertial measurement unit” (TIMU). When finished, according to the project’s boss, Andrei Shkel, it will use tiny gyroscopes and accelerometers to track its position without using satellites or radio towers."
TIMU  eLoran  interference  jamming  GPS  DARPA  inertial  navigation  South  Korea 
august 2013 by pierredv
Shared Spectrum Access for Radar and Communications (SSPARC) - Federal Business Opportunities: Opportunities
See attached DARPA-BAA-13-24 document for solicitation details. See DARPA Special Notice 13-25 for the Proposer's Day Announcement related to this BAA at the following link: https://www.fbo.gov/spg/ODA/DARPA/CMO/DARPA-SN-13-25 /listing.html "Added: Feb 21, 2013 1:04 pm DARPA is soliciting innovative research proposals in the area of spectrum sharing between radar and communications systems. Proposed research should investigate innovative approaches that enable revolutionary advances in science, devices, or systems. Specifically excluded is research that primarily results in evolutionary improvements to the existing state of practice."
communications  Darpa  radar  research  SSPARC 
march 2013 by pierredv
STO: DARPA Interference Multiple Access
"DARPA Interference Multiple Access (DIMA) program exploits multi-access interference to enable high-capacity, low-latency spread spectrum communications that require no infrastructure or coordination"
interference  darpa 
october 2009 by pierredv

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