Entity

Time filter

Source Type

Bells Corners, Canada

Marchetti C.,Defence R and D Canada Ottawa
Proceedings of the International Astronautical Congress, IAC | Year: 2014

The Maritime Monitoring and Messaging Microsatellite (M3MSat) is a technology demonstration mission that will contribute to solving the current challenges of Canadian maritime surveillance faced by the Canadian Armed Forces (CAF). M3MSat is a joint project between the Canadian Space Agency (CSA) and Defence Research and Development Canada (DRDC). M3MSat will be used to evaluate the ability to perform high performance space-based detection of ship transmitted Automated Information System (AIS) signals in dense shipping regions of the Earth. The microsatellite will also perform global maritime surveillance. Integration of the information gathered by the satellite into a recognized maritime picture will make it possible to identify and track marine traffic, determine the direction and speed of vessels, ensure that ships are travelling legally through Canadian waters, and help ensure safety of life at sea. This will ultimately serve to protect public security, national interests, and global operations by improving Intelligence, Surveillance and Reconnaissance (ISR) capabilities within Canada. In addition to the AIS data exploitation, the developmental experience with M3MSat will further increase DRDC's expertise in microsatellite system design and operations. This paper discusses the microspace philosophy adopted by DRDC in the development of M3MSat. It presents the lessons learned throughout the satellite development and provides recommendations on how those lessons could be integrated into the development of future CAF microsatellite systems. Most specifically, it addresses project management, requirements definition, standardization and operations. Based on the M3MSat experience, the paper highlights that it is possible to successfully manage a microsatellite project with more than one client organization, although this situation can easily result in a higher number of requirements and expansion of mission scope. It also underlines that striving to achieve bus standardization does not always bring cost savings. Finally, it establishes that streamlined operations can be adequate to achieve microsatellite operational readiness of a technology demonstrator. Source


Mok I.,Defence R and D Canada Ottawa
Proceedings of the International Astronautical Congress, IAC | Year: 2014

Budgets for traditional "big" space mission are generally higher in comparison to those of "microspace" missions. Defence Research and Development Canada (DRDC) used the Maritime Monitoring and Messaging Microsatellite (M3MSat) project [4, 7], a Canadian maritime surveillance satellite, to apply this low cost microspace approach [3] when building the primary Ground Station (GS). DRDC prepared a GS that will operate the microsatellite with a small operations team. Key to DRDC's implementation of the GS was satellite control automation to conduct operations with M3MSat. This paper will document how DRDC designed, implemented, built, and validated their Mission Operations Centre (MOC) and GS as well as the training of their operators. Copyright © 2014 by the International Astronautical Federation. All rights reserved. Source


Kirkland D.,Defence R and D Canada Ottawa
Progress in Electromagnetics Research | Year: 2012

This paper presents a method for focusing a moving target in single channel SAR data utilizing a novel technique for range migration correction. The First Order Keystone transform is first applied to remove the range-walk of the moving target signature. A search procedure based on maximizing a contrast cost function is then employed to determine the phase correction which compensates for the remaining range curvature. Finally an adaptive notch filter is used to construct an estimate of the azimuth compression filter necessary to focus the moving target. An experimental result is provided for airborne SAR data to demonstrate the feasibility of the approach. Source


Jones C.T.,Dalhousie University | Sikora T.D.,Millersville University of Pennsylvania | Vachon P.W.,Defence R and D Canada Ottawa | Buckley J.R.,Royal Military College of Canada
Bulletin of the American Meteorological Society | Year: 2014

The Royal Canadian Navy's Meteorology and Oceanography Center (MetOc) Halifax produces a semiweekly ocean-feature analysis (OFA) to provide the fleet with the location of major water mass boundaries in the Western North Atlantic Ocean, such as the Gulf Stream North Wall (GSNW). OFAs are generated using temperature measurements from a network of buoys, temperature profile measurements from ships, satellite sea surface temperature (SST) images from the Advanced Very High Resolution Radiometer (AVHRR), and SST climatology. An automated analysis integrates all of the data using geophysical interpolation techniques (kriging) to fill in gaps, such as those due to cloud cover. The Spaceborne Ocean Intelligence Network (SOIN) is a six-year project, supported by the Canadian Space Agency via its Government Related Initiatives Program, mandated to develop procedures that can automatically detect ocean SST front signatures in RADARSAT-2 images. Source


Song R.,Defence R and D Canada Ottawa | Mason P.C.,Defence R and D Canada Ottawa
Proceedings - IEEE Military Communications Conference MILCOM | Year: 2010

The Optimized Link State Routing protocol (OLSR) has valuable features for mobile ad hoc networks such as no route discovery delay and ease of integration into existing systems, which makes it well-suited for time critical military and emergency rescue applications. However, security, trust, and robustness are still a sizable challenge for OLSR, especially for military applications. In this paper, we first highlight potential attacks, vulnerabilities, and key countermeasure points of OLSR in terms of security. Based on this analysis, we propose a new robust OLSR protocol for strict military environments. We demonstrate that the proposed protocol can defend against various sophisticated attacks and is manageable in terms of the trade off among security, trust, and performance. ©2010 IEEE. Source

Discover hidden collaborations