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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

REVIEW OF BANDWIDTH EFFICIENT MODULATION SCHEMES

Osborne, William P., Ara, Sharmin 11 1900 (has links)
International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada / The national telemetry ranges are being pushed to provide higher data rate telemetry services by users with increasingly complex test procedure for increasingly complex weapon systems. At the same time they are having trouble obtaining more spectrum in which to provide these higher rates because of the demand for spectrum in SHF range from various mobile/cellular Personal Communications Services (PCS) as well as congress’s desire to auction spectrum and to transfer as much spectrum as possible to commercial uses. In light of these pressures the industry is in need of a modulation standard that will out perform the existing PCM/FM standard. The motivation for the present review and analysis of the performance of various coded/uncoded modulation schemes arises from this issue. Comparison of the performance of these schemes will be utilized in the following work to find a suitable solution to the existing problem.
2

Matematické metody zabezpečení přenosu digitálních dat / Mathematical security methods in digital data transfer

Bartušek, Petr January 2014 (has links)
This master’s thesis deals with an analysis of digital security with CRC. In the thesis there is described a principle of coding theory, especially then digital security with CRC, for which there is explained a mathematical principle of their encoding and decoding, software implementation and a description of frequently used generator polynomials. The main aim of the thesis is a testing of undetected errors and a finding of number of these errors. After that it is used for the computation of probability with which undetected errors can occur. The thesis is supplemented with several programs which are programmed in the software Matlab.
3

因果歷程偏離與故意歸責—新標準:「獨立評價說」 / The deviation of causal course and the attribution of intention —new standard: theory of independent assessment

戚本律, Chi, Pen Lu Unknown Date (has links)
國內通說將因果歷程偏離當作構成要件錯誤的一種類型。認為因果歷程作為故意認識的對象;並且對於因果歷程重要部分沒有認識,則阻卻故意。德國實務所提出的重要性理論(相當性概念與其他正當化評價事由之欠缺)是建立起國內通說看法的主因。不過,近年德國學界普遍對這種說法提出質疑,認為因果歷程偏離不再是「心理事實」的問題,而是「規範評價」的問題。因而從過去的錯誤理論漸漸轉向歸責理論。對於因果歷程偏離的難題也從「故意」範疇轉向「故意歸責」的範疇。在故意歸責層次下,德國學界提出幾種具體的處理方式,但都不脫離傳統部分主客觀對應的看法。本文認為透過檢驗行為人主觀與客觀事實間是否一致(或者部分一致),無助於解決因果歷程偏離的難題。結論上,本文提出一個嶄新的想法—「獨立評價說」,期待能適當且方便的解決因果歷程偏離的問題。 / The general opinion in Taiwan’s academia considers the error of causal course as an error occurred in the composing elements of a crime. The academia is also of the opinion that the intent of crime shall include the essential parts of the causal course. If any such part is left out of account, the intent of crime shall also be excluded. The theory of essentiality (Theorie der Wesentlichkeit) brought forward by the German court is the main fundation for the opinion of Taiwan’s academia. German authors have questioned this theory in the recent years. They hold that the problem of deviation of causal course is rather a problem of norm assessment rather than a problem of psychological facts. Thus the past fallacy has been gradually replaced by the theory of attribution of intention, and the research on deviation of causal course which was undertaken under the category of intention has also been changed to the category of attribution of intention. As regards the attribution of intention, the German authors have developed some specific approaches to solve the error of the chain of causation. Nevertheless, these resolutions are much the same, for they all emphasize a partial coincidence between the intent and the real causal course. As a conclusion, the author claims that the coincidence can't solve the problem of deviation of causal course, and proposes a new theory, - the theory of independent assessment, with the hope of facilitating the research of the problem of deviation of causal course.

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