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Top Questions

12 votes
3 answers
2k views

Why is the time domain low-pass filter the "sinc" shape?

2 votes
1 answer
1k views

Can white noise be correlated to a random signal

2 votes
2 answers
659 views

Algorithm to "serialize" impulse responses

3 votes
3 answers
590 views

Help me understand the concept of IQ signals

6 votes
2 answers
322 views

Modelling MEMS accelerometer noise

4 votes
2 answers
425 views

FFT: Sinewave frequency displacement when zero-padding

4 votes
1 answer
288 views

What wavelength do we use when calculating the array manifold vector when transmitting LFM waveforms?

4 votes
2 answers
117 views

Estimating spectrum with regularly missing samples from data

1 vote
1 answer
96 views

For unit step $g(t) = u(t)$, why does $G(z) = \frac{z}{1-z}$, whereas $G(s) = \frac{1}{s}$?

4 votes
2 answers
117 views

Why is the CT inverse Fourier Transform also an integral?

3 votes
1 answer
134 views

Applying Lowpass filter on a signal in time domain gives ringing artifacts - how to get rid of them

2 votes
1 answer
156 views

Fourier transform of $|x_\mathrm{a}(t)|^2$

0 votes
1 answer
115 views

Magnitude and phase spectrum of a periodic signal

1 vote
3 answers
108 views

Physical interpretation of frequency domain data of signal noise

1 vote
2 answers
130 views

First-order allpass filter coefficient calculation

1 vote
1 answer
157 views

How to calculate a 3D Fourier Transform?

2 votes
1 answer
117 views

How is the normalized power required for unipolar NRZ twice that of polar NRZ?

0 votes
1 answer
86 views

What kind of distortion effect is this?

2 votes
1 answer
105 views

Are complex exponentials the only eigenfunction for arbitrary LTI systems?

0 votes
1 answer
81 views

Why dft sine plot is so strange

0 votes
2 answers
62 views

Plot amplitude vs freqency in DB

3 votes
1 answer
102 views

Audio EQ Cookbook Stability

2 votes
2 answers
96 views

Use DFT (`fft()`) to Replicate 2D Convolution (`conv()`)

0 votes
1 answer
72 views

How to play sound at specific location (horizontal/azimuth) using wav and python ? without libraries

2 votes
1 answer
141 views

How to interpret integer coefficients for a filter generated by Matlab

1 vote
1 answer
83 views

Allpass Filter with Sign Switch

2 votes
1 answer
64 views

low shelving filter frequency response diagnosis

3 votes
2 answers
64 views

Why not overlap save for inverse stft

0 votes
2 answers
76 views

Alternative way to find fourier transform

3 votes
1 answer
58 views

Filtered-X LMS algorithm and built-in MATLAB implementation

4 votes
1 answer
73 views

How does function c2d in MATLAB manage fractional delay?

0 votes
1 answer
92 views

CFO limit for correct LTE Zadoff-Chu Synchronization

2 votes
1 answer
68 views

Alternative Approaches to Polynomial Regression Fit on Sensor A/D Input

3 votes
1 answer
81 views

Why does multiplying a real signal by a random complex phase term result in "spreading" in the Fourier domain?

1 vote
1 answer
62 views

Relationship between fourier transform and fourier series

1 vote
1 answer
79 views

Fourier transform magnitude of the sum of two signals

1 vote
1 answer
78 views

Continuous-time convolution of signals with negative amplitudes

2 votes
1 answer
60 views

What is the rationale behind the "same" mode of discrete convolution?

1 vote
1 answer
75 views

Practical Implications of DFT Eigenvector Formulations

1 vote
1 answer
87 views

What's the distribution of the DFT of a real-valued, zero-mean, normally distributed random vector?

0 votes
1 answer
82 views

Calculation of the LMMSE Channel Estimator

2 votes
1 answer
80 views

Finding Discrete Fourier Transform (DFT) for different DFT size

1 vote
1 answer
62 views

Deriving Power Spectral Density of $a \cdot x(t)+b$ if PSD of $x(t)$ is known

2 votes
1 answer
61 views

Analysis of impulse response in downsampling problem

1 vote
1 answer
61 views

Is it useful to think of a Fourier Transform as writing out a signal in terms of a basis?

1 vote
1 answer
58 views

Calculating the main lobe width of Dirichlet kernel

3 votes
1 answer
58 views

Compress filter coeficients?

0 votes
1 answer
57 views

Decision Feedback Equalizer initialization


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