Let fy1 yng be a sample from a stationary process. Suggest a procedure to determine if the stochastic process is the sum of a constant and a white noise? Let f"1ng be Gaussian white noise with...



Let fy1 yng be a sample from a stationary process. Suggest a


procedure to determine if the stochastic process is the sum of a constant and


a white noise?





Let f"1ng be Gaussian white noise with zero-mean and unit variance


and suppose that we are interested in simulating a Gaussian stationary


process fy1; y2 yng with autocovariance function and mean _. Show


that this process can be simulated by generating a sample of the white noise


" = f"1 ng and then obtaining y = _ + A", where A is a square matrix


satisfying AA0 = 􀀀 with 􀀀i;j = (i 􀀀 j).







May 22, 2022
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