4 janvier 2019 | International, Terrestre, C4ISR
By: Mark Pomerleau
Europe's increasingly contested environments have required increasingly complex electronic warfare planning tools. Vehicles, however, can't house the power of command posts, so the Army is adapting an existing system for the tactical edge.
The Electronic Warfare Planning and Management Tool, or EWPMT, is a command-and-control planning capability that allows commanders and soldiers to visualize on a screen the effects of electronic warfare in the field. As part of efforts to provide soldiers additional capabilities for EWPMT ahead of the program's scheduled add-ons — an effort dubbed Raven Claw — the Army received feedback that troops at the vehicle or platform level don't need the full application required at command posts.
This feedback coincided with other observations from the Raven Claw deployment, which officials said were mixed.
“It does what it's supposed to do, but it requires a lot of computing capacity and also it requires a lot of inputs from the [electronic warfare officers] right now,” Col. Mark Dotson, the Army's capability manager for electronic warfare, told C4ISRNET in a November interview.
In response, a new effort called Raven Feather “will address both processing consumption and critical EW tasks required at the vehicle/platform level,” Lt. Col. Jason Marshall, product manager for electronic warfare integration at Program Executive Office for Intelligence, Electronic Warfare and Sensors, told C4ISRNET in response to written questions. “Raven Feather will provide a more tactically focused Graphical User Interface as part of the EWPMT Raven Claw system mounted in the vehicle or loaded into the Mounted Family of Computer Systems (MFoCS).”
Dotson added that the Army is eyeing lighter versions of the capability that could be available for lower echelons that may not need as much modeling and simulation.
“We're looking at ways to tailor it specifically to the echelon, and then that will help us with the platform we need to put it on,” he said. The modeling and simulation might be important at the staff officer level, he added, but he questioned whether that computing power is needed at the micro-tactical level.
2 novembre 2023 | International, Aérospatial
Boeing's new timeline to deliver the next F-15EX comes nearly a year after the firm originally planned, and four months behind its revised estimate.
1 mai 2019 | International, C4ISR
DARPA's SIGMA program, which began in 2014, has demonstrated a city-scale capability for detecting radiological and nuclear threats that is now being operationally deployed. DARPA is building off this work with the SIGMA+ initiative that is focused on providing city- to region-scale detection capabilities across the full chemical, biological, radiological, nuclear, and explosive threat space. DARPA initiated a SIGMA+ pilot study last year known as ChemSIGMA to provide initial data and insights into how new chemical sensors using the existing SIGMA network would function. The chemical sensor package incorporates a chemical sensor, wind sensor and communications board into a weatherproof housing. Sensors report wind readings and real-time chemical information to a central cloud-hosted suite of fusion algorithms. “The algorithms were developed using a custom simulation engine that fuses multiple detector inputs,” said Anne Fischer, program manager in DARPA's Defense Sciences Office. “We built the algorithms based on simulant releases in a large metropolitan area – so we took existing data to build the algorithms for this network framework. With this network, we're able to use just the chemical sensor outputs and wind measurements to look at chemical threat dynamics in real time, how those chemical threats evolve over time, and threat concentration as it might move throughout an area.” In the pilot study, DARPA researchers from MIT Lincoln Laboratory, Physical Sciences Inc., and Two Six Labs, built a small network of chemical sensor packages. In partnership with the Indianapolis Metropolitan Police Department, Indianapolis Motor Speedway, and the Marion County Health Department, DARPA's performer teams deployed the network on-site at the Indianapolis Motor Speedway in late April 2018. The chemical sensor network and the data collected during events such as the 2018 Indianapolis 500 were critical to the DARPA effort, allowing the team to assess the performance of the sensors and network algorithms. These tests were conducted in an urban environment to ensure that the system could handle complex and stochastic signals from species that are ever present in a city's chemical background. Significantly, the network-level algorithm successfully improved system performance by correctly suppressing false detection events at the individual detector level. The group of DARPA researchers was also able to collect a large relevant data set and valuable user feedback that will guide ongoing system development efforts. Further testing with safe simulant/concert smoke at Indianapolis Motor Speedway, August 2018 During additional tests in August 2018, a non-hazardous chemical simulant was released in the empty Indianapolis Motor Speedway at a realistic threat rate. Concert fog was also released to serve as a visible tracer. The propagation of the visible tracer was observed in aerial photography, and ChemSIGMA sensors and algorithms determined the release location with unprecedented accuracy. The web-based ChemSIGMA interface allows the user to view alerts in real time across a variety of devices. Multiple trials were conducted over the course of several days assessing performance over a variety of meteorological conditions. Releases occurred during daytime and nighttime with a full range of wind directions and speeds. The ChemSIGMA prototype system detected all of the simulant releases and generated zero false alarms over the course of testing. Department of Defense simulant testing at Dugway Proving Ground, Utah, October 2018 “We're looking at how we might make this network more robust and more mature,” Fischer said. “For example, we implemented a network at Dugway Proving Ground as part of a DoD test for simulant releases, and have shown that the network can respond to a number of chemical simulant threats different than those used in Indianapolis, as well as built-in capabilities for mobile releases. Over the past few months, the team has used these data sets to further refine the algorithms, and plans to integrate and test them with the ChemSIGMA system in test events scheduled later this year.” The successful pilot and simulant test of the ChemSIGMA system at the Indy500 and Dugway Proving Ground provided valuable, relevant, and realistic data sets for validation and verification of the source localization and plume propagation algorithms. DARPA is currently extending the capabilities for networked chemical detection by advancing additional sensor modalities, including short-range point sensors based on techniques, such as mass spectrometry, and long-range spectroscopic systems. As these systems are further developed and matured, they will be integrated into the SIGMA+ continuous, real-time, and scalable network architecture to increase the system's capabilities for city-scale monitoring of chemical and explosive threats and threat precursors. https://www.darpa.mil/news-events/2019-04-30
5 septembre 2024 | International, Terrestre
The specific JSM capabilities enhance the advanced F-35A aircraft, creating a formidable capability against land and sea targets, and boosting Australia’s ability to strike targets from long-range.