Library
Articles
Communications & Networking
2008-11-12
Viterbi Algorithm for Decoding of Convolutional Codes
Viterbi algorithm is a well-known maximum-likelihood algorithm for decoding of convolutional codes. In this article this algorithm is described using the approach suitable both for hardware and software implementations.
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2008-11-02
Hard decision decoding of binary low-density codes based on extended Hamming codes
Hard decision decoding of binary low-density codes based on extended Hamming codes
Low-density parity-check codes constitute a class of error-correcting codes which can give a gain close to the theoretical maximum defined by Shannon limit. In this paper one of such codes is presented, together with the appropriate decoding algorithm.
Digital Design
2009-01-24
Soft CPU Cores for FPGA
In this article popular RISC CPU cores suitable for FPGA implementation are described and compared (LEON, OpenRISC, MicroBlaze, Nios II, Cortex-M1 and others).
2009-01-19
FPGA Logic Cells Comparison
In this article we compare logic cells architectures that are used in modern FPGAs: Xilinx (both Virtex-5 and earlier), Altera and Actel.
2009-01-15
FPGA Architectures Overview
In this short article we discuss modern FPGA architectures (SRAM-based, flash-based, antifuse-based) and their applications.
Automation and Control
2008-11-28
Motors and Control Systems for Precise Motion Control
In this article we discuss different types of electric motors for precise motion control (stepper motors, microstepper motors, servo motors) and the impact of the selected type of motor on a motion control system.
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