Government of Canada

About: Government of Canada is a government organization based out in Ottawa, Ontario, Canada. It is known for research contribution in the topics: Monetary policy & Productivity. The organization has 796 authors who have published 886 publications receiving 21366 citations. The organization is also known as: federal government of Canada & Her Majesty's Government.

The Canadian Approach to the Development of Communications by Satellite in the 12-GHz Band

Abstract: WARC-79 made significant changes to how the 12-GHz band will be used in Region 2. In particular, it decided that the 12-GHz band in Region 2 will extend upwards the 12.7 GHz, and that the upper portion of the overall band (11.7 to 12.7 GHz), will be planned at the 1983 Regional Conference. The paper describes these allocation changes and how satellite systems are being developed in Canada under these new Regulations.

Assessment of Simulated Compact Polarimetry of the High Resolution Radarsat Constellation Mission SAR Mode for Multiyear and First Year Sea Ice Characterization

Abstract: Synthetic Aperture Radar (SAR) remote sensing has become a valuable tool for sea ice characterization. Operational sea ice monitoring usually relies on SAR data from single- or dual-polarized beam modes such as the ScanSAR mode of RADARSAT-2. However, such imagery cannot accurately discriminate certain sea ice types and open water states at all times during the year. Thus, the recently proposed compact polarimetric (CP) SAR configuration for Earth observation could be a compromised choice for operational sea ice observation. This configuration will be included in the future RADARSAT Constellation Mission (RCM). In this study, simulated CP SAR data of the RCM High Resolution (HR) SAR mode is evaluated for sea ice classification. Results indicate promising performance of the RCM HR mode for First Year Ice (FYI) and Multiyear Ice (MYI) classification using CP SAR data.

Technological and Regulatory Developments for Electromagnetic Transmission into the Millimeter Wave and Terahertz Wave Spectrum

Abstract: Electromagnetic transmission into the millimeter wave (mmWave) and terahertz wave (THzWave) spectrum is undergoing many developments. This paper addresses technological and regulatory developments of electromagnetic transmission into the frequency range 86–3000 GHz relevant to commercial communication systems and networks. The paper reviews technological advancements based on transmission trials, propagation measurements, and semiconductor electronics and circuit component developments. It also reviews technology trends and addresses the suitability of current enabling technologies for the development of mmWave and THzWave communication systems such as 6G and beyond. In addition, this paper presents steps taken by spectrum regulators and standardization bodies (e.g., ITU-R, FCC, IEEE) to further the identification and allocation of frequency bands for future use by radiocommunication services. Technology maturity has caused spectrum regulators to focus on commercial service expansion into certain frequency bands. The ITU-R is currently studying sharing and compatibility between the land-mobile, fixed and passive services applications in 275–450 GHz. The upcoming ITU-R World Radio Conference 2019 is to decide on the expansion of the land mobile and fixed services applications into 275–450 GHz. The full exploitation of the mmWave/THzWave spectrum by commercial communication systems awaits the development of innovative technologies to compensate for atmospheric attenuation and propagation losses, enhance mobility, and design and implement high-performance energy-and-cost-efficient compact devices.

Differentiation of Anomeric & Positional Isomers of Acyclic & Cyclic Nucleosides by FAB Tandem Mass Spectrometry & NMR

Abstract: We have been interested in developing routine methods, using standard 1H and 13C NMR spectroscopy of assigning anomeric configuration for both acyclic and cyclic nucleosides of the types (1) & (2) respectively. In the latter class of compounds ve have also sought to determine the site of glycosidation (viz N1 or N3 with respect to the imidazole ring). We have extended this study using FAB tandem mass spectrometry1 to identify stereochemical differences.