I need some help here asap please. thanks ou are a Neuroengineer interested in d

Question

I need some help here asap please. thanks

ou are a Neuroengineer interested in developing better A/D convertors for biomedical sensors, hearing aids, and neural signal processing systems. A/D conversion involves quantization, the process by which continuous amplitudes of a signal are digitized signal ampli binary numbers. The resolution of the A/D conversion is determined by the # of available bits, typically, 8, 12, 16, 24 or 36 bits. The greater th auditory, sound wave applications, the quality of the sound improves with the # of bits used by a signal processor . Quantization involves reducing the number of possible tudes to a finite # a computer can store. Signal amplitudes are sampled, and stored as e # of bits available, the greater the resolution. For example, for Assume that: a) A quantizer, or A/D convertor with N bits, can represent 2" possible signal amplitude values b) The resolution of an A/D convertor can be determined as: Ssignal Input Range divided by t of signal amplitude values that can be represented by the A/D convertor To accurately represent a signal, the signal needs to be quantized, or digitized by an AVD convertor at a sampling rate of at least twice the frequency of the signal c) Problem 1) How many amplitude levels can a 16-bit A/D convertor represent? 2) How many amplitude levels can a 24-bit A/D convertor represent? 3) Which of these two A/D convertors has a lower resolution?

Explanation / Answer

1) it can represent 2^16 amplitude levels

2) it can represent 2^24 amplitude levels

3) the A/D converter with 16 bits has a lower resolution .

4)resolution = 65/ (2^8) = 0.253

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