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We have two noise sources and an RMS voltmeter. We measure the RMS values and

they are 3V and 5V. We would

like to determine the correlation coefficient but we have

an adder only. Putting the two noise sources in series produces a noise with 4V effective


Undergrad: Calculate the crosscorrelation coefficient at this arrangement. (2 points)

Grad: Using the two correlated noises shown above, create two uncorrelated noises by a

linear combination of them. You are free to choose how large will be the resultant

uncorrelated noises. Provide the required weighting factors for the linear combination of

the noises. (2 points)

BONUS (undergrad and grad). Must be totally correct to receive points:

Both uncorrelated noises must have 1 V rms amplitude. (4 points)

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