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_Signal_FAQ21_Implementation_Complexity

_Signal_FAQ21_Implementation_Complexity - What is meant by...

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What is meant by the implementation complexity of a digital system? In general, implementation complexity is the amount of hardware and software or standard operations that is needed to realize some sort of processing in real time. Consider, for example, a MP3 player, which is supposed to produce pleasing music from some digitally encoded audio files. The regeneration of the music will require the digital processor in the MP3 player to read data from the file at a certain speed or rate and then follow a complicated algorithm or process to hopefully reproduce something similar to the originally recorded music. The execution of the algorithm or the processing must be carried out fast enough, else the music will not be continuously. Depending on what need to be done, this will impose certain speed requirement on the processor hardware and clock speed. From the other angle, given, say, a Pentium 4 processor at 4 GHz, there is a certain number of standard operations (additions, multiplications, memory access, etc) that can
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