منابع مشابه
Number 9
The set partitioning embedded block (SPECK) image compression algorithm has excellent performance, low computational complexity, and produces a rate scalable compressed bitstream that can be decoded efficiently at multiple bit-rates. Unfortunately, it consumes a huge amount of computer memory due to employing lists that store the coordinates of the image pixels and the coordinates of the sets t...
متن کاملNumber 9
The necessity of efficient intrusion detection system increased recent research to be focused on hybrid techniques for better results. In recent research plenty of intrusion detection systems have been proposed with various data mining techniques, machine learning mechanisms and fuzzy logic. Existing intrusion detection systems suffered from higher false positive rate and negative rate. This pa...
متن کاملNumber 9
Pseudo Noise (PN) sequences are defined as a sequence of 1’s and 0’s which have randomness properties that make it appear noise-like but are generated by mathematical algorithms. PN sequences that are generated by shift registers such as M-sequences, Gold sequences are known and widely used since the 1960’s for various applications. These sequences are periodic and the periodicity is always in ...
متن کاملNumber 9
Spread Spectrum is a modulation technique in which a signal is transmitted on a considerable larger bandwidth than the frequency contents of the original information. In other words, the signal of particular bandwidth is intentionally spread in the frequency domain, resulting in a signal having wider bandwidth. Here the minimum new bandwidth is much larger than the minimum required frequency sp...
متن کاملNumber 9
The electromagnetic band gap structures are widely used to suppress pronounced surface waves in antennas with thicker substrate and higher dielectric constant. This paper reviews various application of Electromagnetic band gap structure in microstrip antenna, a band gap characterization of an electromagnetic bandgap structure along with the explanation of various reported configurations of comp...
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ژورنال
عنوان ژورنال: Annals of the Rheumatic Diseases
سال: 1997
ISSN: 0003-4967
DOI: 10.1136/ard.56.11.638