Description: It is well known that Welch algorithm is one of classical power spectrum estimation which is used widely. But facing a rapidly growing massive data, it will spend a plenty of time to operate Welch algorithm in the serial Matlab circumstances.
A parallel Welch algorithm, which is implemented using the Master-Slave parallel programming model with the support of Linux clusters and MPI, is proposed here depending on the theory of Welch algorithm. The experiment results show that PMWelch can achieve the same accuracy as Matlab do and can highly improve the speed.
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pmwelch.pdf
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