A white noise source has a power of 1 mW when sampled at . If the same signal is sampled at and the result low-pass filtered with a bandwidth of , what is the resulting noise power? Given that an...

A white noise source has a power of 1 mW when sampled at . If the same signal is sampled at and the result low-pass filtered with a bandwidth of , what is the resulting noise power?

Given that an 8-bit A/D converter has a SNR of 50 dB but is linear to 12 bits, what is the sampling rate required to achieve 12 bits of accuracy using straight oversampling on a signal bandwidth of 1 MHz?