Questions tagged [chebyshev-filters]
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questions
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1answer
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how to convert the zeros of an odd order Chebyshev Type II from low-pass prototype?
My DSP book (Rabiner, Lawrence R., and Bernard Gold. "Theory and application of digital signal processing." Englewood Cliffs: Prentice-Hall (1975).) has the following transformations for ...
3
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1answer
43 views
Different formulations of Chebyshev II resulting in different poles?
I am currently trying to implement a C++ program to calculate digital filter coefficients using a Chebyshev Type II filter design technique. The text I am using to understand the theory of the ...
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1answer
39 views
Chebyshev Filter Transfer Function
I'm trying to derive the transfer function for Chebyshev filter.
$$|H(\Omega)|^2=\frac{1}{\sqrt{(1+\epsilon^2T_n^2(\frac{\Omega}{\Omega_c})}}$$
where $$T_n(x)=\cos(N\cos^{-1}(x)) \forall x \le 1$$
$$...
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Analogue Filters (Picking the right filter!)
I'm new to Analogue and I'm trying to find the Ideal filter for the following specifications:
$0.1\ \rm dB$ ripple
Cutoff Frequency $F_c = 80\ \rm{kHz}$
An attenuation of $40\ \rm dB$ at the stop-...
1
vote
1answer
71 views
Why is there a dip in this Chebyshev filter response?
I want to build and simulate a 6 GHz, 4th order lumped-element Chebyshev bandpass filter with a maximum passband ripple of 0.1 dB and a bandwidth of 1 GHz, and as I understand it, there should be 3 ...
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50 views
DTMf decoding using Matlab
I have to identify the individual keys presses from a DTMF signal. There are three keys presses together as seen in the image. The signal has a sampling frequency of 8kHz. Each tone lasts between 0.1 ...
0
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1answer
37 views
Typical parameters and stability of Chebyshev filters
I design Chebyshev first and second type filters using scipy.signal.iirfilter.
What are typical values of maximum ripple in the passband and minimum attenuation in the stopband? I struggle to find ...
1
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1answer
2k views
Chebyshev I or Chebyshev II?
I am new to DSP, and I am trying to recreate some analysis of a signal,
They use a chebyshev I filter to go from a 100Hz signal to a 50Hz signal. Whereas I am currently using a chebyshev II filter, ...
0
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1answer
269 views
Optimal Chebyshev FIR filters
I have many information i want to be clear very well .
The defining characteristic of FIR filters optimal in the Chebyshev sense is that they minimize the maximum frequency-response error-magnitude ...
1
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1answer
364 views
Question on Chebyshev filter
What does the output signal look like when you insert $2000 Hz$ square pulses to chebyshev filter with parameters: (Matlab syntax). I tried to do it like this but I don't understand where it goes ...
