Dynamic link budget simulation

A new simulator named DLBS (Dynamic Link Budget Simulator) was written to simulate the time-varying communication link between a vehicle that re-enters the atmosphere from the outer space, and a ground station. During the vehicle descent trajectory, communications blackouts typically occur due to the effects of plasma that forms around the vehicle. A companion simulator, AIPT (Antenna In Plasma Tool), evaluates the electric field at the input of the ground station antenna, taking into consideration the vehicle structure, its antenna, the characteristics of plasma at some specified points along the vehicle trajectory, and the obtained values are stored in a file. DLBS processes the data read from the AIPT output file and evaluates the corresponding channel transfer functions. DLBS then allows to simulate the typical telemetry and telecommand links, using both CCSDS standardised and some non standard channel encoding schemes and modulations. For each generated frame, DLBS uses a channel transfer function obtained by adequately interpolating the two nearest transfer functions evaluated in the initial phase. DLBS includes realistic frame, frequency, phase and bit synchronisation, so that synchronisation errors are also included as source of performance degradation, and measures both the average bit and frame error rates, and the bit error rate at frame level, so that it is possible to appreciate the dynamic system behaviour. The paper will show the results obtained for a case stud

The Origin and Migration of Proportionality

This paper analyses the origin and migration of proportionality covering the history of proportionality, the development into the Basic Law, its migration and current trends including its presence in international and human rights law

Valentine Lawless, Lord Cloncurry, and his Landed Estates 1799-1845

Valentine Lawless, son o f Nicholas and Mary Lawless, was bom on 19 August 1773. He attended boarding school seminary in Portarlington and later progressed to school at Prospect House. He progressed to the King’s School in Chester and finally graduated from Trinity College Dublin in 1790, with a B.A.1 In 1799, on the death of his father, Valentine inherited the title Lord Cloncurry and the Lyons estate which contained the family home. It was situated in the barony of South Salt in north Kildare and amounted to 1,060 acres of prime agricultural land. It was located about three miles from Celbridge and ten miles from Naas. The estate bordered the Castletown estate of the Connolly family and the Straffan House estate owned by Arthur Henry. Valentine Lawless inherited additional lands at Cloncurry on the Kildare - Meath border and at Abbington in County Limerick as well as a large house, ‘Maretimo’ in Blackrock, County Dublin. The Lyons and Cloncurry holdings were later additions to the Lawless family property, as Nicholas Lawless had only purchased the latter in 1787 and the former in 1798 from the Aylmer family. This study concentrates on various aspects of Lord Cloncurry and his Munster and Leinster estates that are not referred to in either Cloncurry’s autobiography and Fitzpatrick’s biography. It will not dwell on Lord Cloncurry’s involvement with the United Irishmen or his imprisonment. The main focus will be on Cloncurry’s direct management of his three estates

The Road to the Antiquities Act and Basic Preservation Policies It Established

3 pages

Should Attorneys Be Footsoldiers in the War on Corporate Fraud?

A SLOW BUT steady march out of recession in the early 1990s set the stage for what would become one of the greatest explosions in growth of the capital markets. It was an unprecedented combination of excess venture capital, coupled with the new and seemingly limitless potential of developing computer technologies, particularly the internet, which created the now infamous dot-corn boom that culminated in early 2000. From 1995 to the beginning of 2000, the DowJones Industrial Average\u27 ( DJIA ) went from a value under 4000 to nearly 12,000,2 representing an almost 300 percent increase

Dynamic link budget simulation

A new simulator named DLBS (Dynamic Link Budget Simulator) was written to simulate the time-varying communication link between a vehicle that re-enters the atmosphere from the outer space, and a ground station. During the vehicle descent trajectory, communications blackouts typically occur due to the effects of plasma that forms around the vehicle. A companion simulator, AIPT (Antenna In Plasma Tool), evaluates the electric field at the input of the ground station antenna, taking into consideration the vehicle structure, its antenna, the characteristics of plasma at some specified points along the vehicle trajectory, and the obtained values are stored in a file. DLBS processes the data read from the AIPT output file and evaluates the corresponding channel transfer functions. DLBS then allows to simulate the typical telemetry and telecommand links, using both CCSDS standardised and some non standard channel encoding schemes and modulations. For each generated frame, DLBS uses a channel transfer function obtained by adequately interpolating the two nearest transfer functions evaluated in the initial phase. DLBS includes realistic frame, frequency, phase and bit synchronisation, so that synchronisation errors are also included as source of performance degradation, and measures both the average bit and frame error rates, and the bit error rate at frame level, so that it is possible to appreciate the dynamic system behaviour. The paper will show the results obtained for a case study

Parent Perceptions of Service Animals Impacts on the Language Skills of Their Children with Autism

This study found multiple areas within the broad field of pragmatics in which a therapy dog can benefit the child that they are partnered with. In general, it appears that having a trained service dog for individuals with ASD may be a good tool to support the developmental of a variety of skills. Specifically, within the areas of socializing and use of language, the dog can provide the child with opportunities for conversations, as well as topics to discuss and experiences to share

What is positive ageing? An exploration of the views of the participants of the Westgate Foundation

Population ageing has become a global phenomenon in recent decades. Fertility rates are decreasing and people are living for longer than ever before. In response to this, there has been a shift in thinking to promote healthier outcomes for those in later life. As a result, ideologies around healthy ageing have evolved. Terms such as ‘successful ageing’, ‘active ageing’ and ‘positive ageing’ are now part of the discourse with regards to growing older. Although these terms were conceived as early as the 1980s, they may still be considered as relatively new in Ireland with the first Irish National Positive Ageing Strategy published in 2013. The Westgate Foundation is a community based organisation working with people aged over 60 years. Through collaboration with the CARL team and UCC, a group of participants from the Westgate foundation formed the idea of asking the question ‘What is Positive Ageing?’. As a fourth year Bachelor of Social Work student I found the question interesting and decided to join the collaboration as part of my final year action research study. This action research study explores the concept of positive ageing. It does this largely as a participatory study, taking into account the views of participants of the Westgate Foundation. I also examine existing and relevant literature and policies on healthy ageing. The research findings depict positive outcomes for those who are actively involved socially and have positive attitudes to life in general. The correlation between the academic research and the participatory research showed similar findings on what it is to age positively while identifying the challenges faced relating to positive ageing