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Data compression is a science of representing actual information in a more compact form by reducing its size to some extend. Reliable and efficient data compression accompanies least memory usage and less computational complexity. This work proposes a lossless compression technique for the efficient compression of both images and text files. LiBek II is an adaptive dictionary based algorithm in which...
Many hardware efficient algorithms exist for hardware signal processing architecture. Among these algorithm there is a set of shift-add algorithms collectively known as CORDIC (Coordinate Rotation for Digital Computers) for computing a wide range of functions including certain trigonometric, hyperbolic, linear and logarithmic functions. The paper compares the serial and parallel implementations of...
Convolutional codes are applied in applications that require good performance with low implementation cost. It is a finite state machine, processing information bits in a series manner. Viterbi algorithm [1] can be applied to a host of problems encountered in digital communication systems. The Viterbi algorithm cannot detect any error but can sometimes correct it, while calculating one survivor path...
With the development of economy urbanisation and technology it is necessary to design intelligent energy saving lighting systems [2], and efficient power management on ATM counters. The information of pedestrians and the ATM users are sensed by the pyroelectric infrared sensors. The sensors are placed on the door pole, thus the selection and installation of sensors are directly affect the control...
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