Questions tagged [finite-impulse-response]
A finite impulse response (FIR) filter is a type of a signal processing filter whose impulse response is of finite duration.
789 questions
6 votes
1 answer
182 views
Window length clarification - FIR Filter
I'm reading an IEC standard and they say "Group delay of a finite Impulse Response (FIR) filter based algorithm with symmetric or antisymmetric coefficients is equal to one-half of the window ...
- 3,879
3 votes
1 answer
135 views
scipy remez half-band filter DC gain
I'm trying to use scipy.signal.remez to design half-band filters. My understanding is that this targets an equi-ripple criteria to design the filter. What I am ...
- 133
3 votes
0 answers
60 views
Rounding errors in best linear approximation of a system
I am working on the orthogonal decomposition of a signal to compute the best linear approximation of a system. Given an input signal $x[n]$ and system output $y[n]$, the output can be decomposed into ...
- 41
0 votes
0 answers
49 views
Minimizing Overshoot of Recursive Least Squares Adaptive Filter in Non-stationary Environment?
I'm using the RLS algorithm for online system identification of a 1D FIR filter. When I simulate my system in response to a small step change in the plant FIR coefficients, the adaptive filter does ...
- 203
0 votes
2 answers
150 views
FIR filter different implementation method
I'm working on a project using an ESP32 that involves continuously sampling a signal and applying a real-time FIR low-pass filter, then, the filtered samples will be sent to the DAC to reconstruct the ...
- 113
0 votes
2 answers
104 views
Getting the impulse response of a linear system given white gaussian noise as input and the system's output
I am having trouble with my implementation: ...
- 101
0 votes
2 answers
320 views
How to Normalize and Quantize FIR Filter Coefficients While Maintaining DC Gain of 1?
I am working with a set of FIR filter coefficients and need to normalize and quantize them while ensuring that the DC gain remains equal to 1. For example, consider the following halfband FIR ...
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1 vote
1 answer
96 views
Estimating Impulse Response of System with Exponential Swept Sine (ESS) - scaling problem
I calculated the transfer function of a system in Frequency Domain by division of Y and X. Since I only deal with exponential sweep sines (ESS) as excitation, I want to reproduce the transfer function ...
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