Questions tagged [resolution]

Question 1

I have three versions of an image that started out as a perfectly-sharp black-and-white vector graphic which was then rasterized at different (but all relatively small) scales, the largest of which ...

Question 2

I have a question regarding the resolution of Numerically Controlled Oscillator where the most significant bit is being used as the digital clock. I am not including the phase look-up table where the ...

Question 3

I am trying to understand the condition in frequency space to be able to resolve two different signals with finite separation $\tau_{\text{sep}}$ in time. In the case the frequencies are centred on $0$...

Question 4

Books and papers usually define a radar range resolution proportional to the pulse bandwidth inverse: $\Delta R = \dfrac{c}{2B}$ This seems intuitive when one considers the matched filter mainlobe ...

Question 5

In the textbooks I've read and also in this answer the STFT of a signal $x[k]$ with length $N$ ($N$ is the number of samples in $x$) using a window $w[k]$ with length $L$ is defined as $$X[k,r] = \...

Question 6

I am currently working on a way to deduce the fundamental period of a signal, where the only available information is the signal array. To do this i utilize the numpy FFT, and this I've gotten to work ...

Question 7

Problem Sample the signal $\cos(500 \cdot 2\pi t)$ with sampling frequency $f_s = 5000 \ \text{Hz}$ and sample for a duration of $T = 0.5 \ \text{s}$. Perform an FFT on the samples. Now, change the ...

Question 8

I am a high school intern at a company employing heavy DSP and trying to learn the basics from the ground up. One feature of a test application I'm creating is the ability to zoom an FFT graph and ...

Question 9

It might be a simple question but I couldn't find it via google, so I might not use the right terms. Say I have two measurement values $P$ and $Q$. $P$ has 7 bits of resolution and $Q$ has 6 bits. So ...

Question 10

I've been working on implementing a constant Q transform to try and detect musical notes within an audio signal and I came across an issue. When trying to detect low frequencies the constant Q ...

Question 11

I am trying to write code to detect musical notes within a signal. I have been reading up on different methods for extracting frequency information out of a signal to determine which notes were played ...

Question 12

I'm digitizing a zero-mean complex Gaussian white noise signal with certain variance, through independent I/Q baseband sampling (two ADCs). The noise variance (power) depends on the thermal emission/...

Question 13

Say I have a 10-bit SAR ADC with a $5 \ \text{V}$ reference. I calculate its resolution to be $$\Delta V_\text{lsb} = \frac{5 \ \text{V}}{2^{10}} = 4.88 \ \text{mV} \approx 5 \ \text{mV}. $$ So for a $...

Question 14

I am trying to understand something in remote sensing but lack a background in science and technology so it is difficult. Hopefully this is a reasonable question to ask. In sensing there are different ...

Question 15

I have a signal which is a mixture of 2 close-frequency sinusoids, something like 1320 Hz and 1325 Hz, with an amplitude envelope which is typical for a musical instrument (ADSR). $$s(t) = a_1(t) \sin(...

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Questions tagged [resolution]

I have some low-resolution rasterizations of an original smooth shape. Can they be combined to get a higher-resolution version?

Resolution of NCO as a digital clock

Minimum bandwidth to resolve two distinct signals (DFT)

Mismatched filter and arbitrary waveform radar range resolution

Frequency resolution in STFT

Deducing fundamental period of signal consisting of multiple sinusoids using python LCM

Spectral leakage when performing fft

Baseband downconversion without imaging

How do I calculate the bits of resolution in my derived value?

Constant Q transform where you keep the window size constant (so Q is no longer constant)?

How can I use a constant Q transform to detect low frequencies without making the buffer size too large?

ADC bias, noise and number of bits under Gaussian signals

Difference between ADC dynamic range and voltage resolution?

modulation transfer function and ground resolved distance

How to retune this mixture of 2 close-frequency sinusoids?

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