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Questions tagged [quantization]

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How to avoid distortion (quantization error) in DDS output in STM32?

I have been using a timer interrupt to generate sine waves with an STM32, however, for higher phase increments (to get higher frequencies as output), there are quantization errors (distortions). To ...
Rima's user avatar
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Formula for step size in Quantization

I've just started learning about Quantization and I'm a little confused. Currently my understanding of it is that we should use the formula (Vmax-Vmin)/2^n where n is the amount of bits used. However, ...
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Minimize the quantization error of transducer and DAQ

Can somebody please let me know how to solve this problem: A 12-bit A/D converter has an input range of ± 10 V and is connected to an input amplifier with a programmable gain of 1, 10, 100, or 500. ...
LearnerABC's user avatar
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3 answers
581 views

Which noise sources dominate in a receiver?

For a radio receiver that digitizes over-the-air RF signals (such as an SDR), my assumption (as a DSP guy; pardon my hardware ignorance!) has been that thermal noise dominates total receiver noise, ...
Gillespie's user avatar
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Why is quantization defined in powers of integer multiples of two in digital image processing?

I have been studying quantization in the context of digital image processing. I referred to the 4th edition of the book titled Digital Image Processing by Rafael C. Gonzalez and Richard E. Woods. In ...
Anubhav's user avatar
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What are the different types of digital signals

In a digital logic class I was taught that a digital signal is one whose y-component, voltage, is discretized but whose time domain is continuous. In a signal processing class, we worked with digital ...
Thomas Coor's user avatar
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Understanding dynamic range in ADC

I am trying to understand dynamic range for ADCs and I am a bit confused. I have seen two definitions (the second of which I don't fully undertand). The logarithmic ratio in decibels of the maximum ...
4Matt's user avatar
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How can you measure voltage differences less than thermal voltage (~26mV at room temp)?

If thermal voltage is the average voltage of any given electron relative to the voltage at ground state, and this presumably fluctuates, how can you make any measurement on a circuit more accurate ...
Taako's user avatar
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How exactly could you prove the following question about quantum computing?

Consider a function f mapping a bit onto another bit, i.e. f:{0,1}---> {0,1}. The function f is either constant, so f(0)= f(1) or balanced, so f(0)different f(1). Thq qunatum gate for the Deutsch ...
Abdel Ruvalcaba's user avatar
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Quantization results in harmonics in ADC FFT plot

This is taken from Analog-to-Digital Conversion by Marcel Pelgrom. Okay, I understand that with 1-bit quantization, the output is block-wave (Square) and that of course when you do the Fourier Series,...
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Arduino lack of accuracy in AD conversion

let's consider this simple piece of code: ...
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A/D conversion improvement through Arduino

I have a certain analog signal v(t) which varies from 0 to 2V, which I want to be read by Arduino. I know that Arduino can read it through the function AnalogRead, ...
Kinka-Byo's user avatar
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How does the quantization error decrease when the input signal is matched to the ADC input?

Assuming a theoretical example imagine that we at first feed a 1V pk-pk noiseless sine to a 10V ADC. And in the second case we feed a 10V pk-pk noiseless sine to that 10V ADC. As far as I understand ...
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