Jul 7, 2016 05:34
7 yrs ago
3 viewers *
English term
constant frequency resolution
English to Polish
Tech/Engineering
Other
Opis urządzenia do pomiarów jak niżej.
is a very efficient tool for determining the sound absorption coefficient, the sound reflection factor and the impedance ratio of specimens in the laboratory.
he table within the Measurements box helps you to distinguish between the different measurements by listing
the measurement name
the lower frequency limit in Hz according to standard and
the upper frequency limit in Hz according to standard.The prerequisite for all averaging calculations is a constant frequency resolution of the various result vectors that are to be averaged over.
This frequency resolution corresponds to the ratio of the sample rate and the sample length (see section Setup).
is a very efficient tool for determining the sound absorption coefficient, the sound reflection factor and the impedance ratio of specimens in the laboratory.
he table within the Measurements box helps you to distinguish between the different measurements by listing
the measurement name
the lower frequency limit in Hz according to standard and
the upper frequency limit in Hz according to standard.The prerequisite for all averaging calculations is a constant frequency resolution of the various result vectors that are to be averaged over.
This frequency resolution corresponds to the ratio of the sample rate and the sample length (see section Setup).
Proposed translations
(Polish)
| 5 | taka sama (stała) rodzielczość uśrednianych spektrum czestotliwości |
Witold Palka
|
| 3 +1 | rozdzielczość dla stałych częstotliwości |
Crannmer
|
Proposed translations
+1
1 hr
rozdzielczość dla stałych częstotliwości
j.w.
Peer comment(s):
| agree |
Dimitar Dimitrov
1 hr
|
|
thx
|
|
| neutral |
Frank Szmulowicz, Ph. D.
: Proszę uzasadnić swoją odpowiedź. Jak ona się odnosi do sample rate i sample length.
1 day 2 hrs
|
|
Na dokładność wyników FFT i zakres przetwarzanych częstotliwości wpływa zarówno częstotliwość próbkowania, jak i długość okresu próbkowania (czyli liczba próbek przy danej fs).
|
42 days
Witold Palka
Native in Polish
Inside of the Industry
Native in: Polish 
Works in: German to Polish, English to Polish, German to English, and 2 more.
Related KudoZ points
:
56
taka sama (stała) rodzielczość uśrednianych spektrum czestotliwości
Jak słusznie cytowane, spektrum częstotliwosci jest zalezne od 1) czestotliwosci probkowania 2) od dlugości okna sygnalu czasowego, przeliczanego przez transformate fouriera do postaci spektrum.
Chodzi o to, ze usrednianie ma sens, jezeli usredniane spektra maja tą samą rozdzielczość, tzn zawierają dane dla tych samych punktow spektrum, np. 10, 12, 14, 16 itp.Hz. Uśrednianie spektrum zawierających dane dla np. 10,12,14,... (spektrum 1) oraz 10,13,16,19 Hz (spektrum 2) nie ma sensu.
Chodzi wiec o uśrednianie spektrum, mozliwe pod warunkiem posiadania wartosci w tych samych punktach, okreslonych przez rozdzielczosc spektrum.
Tak btw spektrum ma stala rozdzielczosc, niezalezna od czestotliwosci (miejsca danego spektrum). Rozdzielczosc spektrum wiemy od czego zalezy (czestotliwosc probkowania i dlugosc okna czasowego do FFT).
Chodzi o to, ze usrednianie ma sens, jezeli usredniane spektra maja tą samą rozdzielczość, tzn zawierają dane dla tych samych punktow spektrum, np. 10, 12, 14, 16 itp.Hz. Uśrednianie spektrum zawierających dane dla np. 10,12,14,... (spektrum 1) oraz 10,13,16,19 Hz (spektrum 2) nie ma sensu.
Chodzi wiec o uśrednianie spektrum, mozliwe pod warunkiem posiadania wartosci w tych samych punktach, okreslonych przez rozdzielczosc spektrum.
Tak btw spektrum ma stala rozdzielczosc, niezalezna od czestotliwosci (miejsca danego spektrum). Rozdzielczosc spektrum wiemy od czego zalezy (czestotliwosc probkowania i dlugosc okna czasowego do FFT).
Reference comments
2 days 11 hrs
Frank Szmulowicz, Ph. D.
United States
United States
Native in English
&
Polish
United States
On time, on target, on budget.
Native in: English 
, Polish
Works in: Polish to English, English to Polish, Russian to Polish, and 1 more.
Related KudoZ points
:
1126
Reference:
constant frequency resolution
Frequency resolution is the size of the smallest frequency for which details in the frequency response and the spectrum can be resolved by the estimate. A resolution of 0.1 rad/s means that the frequency response variations at frequency intervals at or below 0.1 rad/s are not resolved.
http://www.mathworks.com/help/ident/ug/controlling-frequency...
cccccccccccccccccccccccccccccccccccccccccccccc
This means that the low-frequency bins
of our transform axe constant frequency resolution (equal
to the sample rate over the temporal window length)
rather than constant Q.
http://academics.wellesley.edu/Physics/brown/pubs/highRes.pd...
cccccccccccccccccccccccccccccccccccccccccccccccccccccc
However, the window size of WFT is invariable, so there is only constant-frequency resolution and spatial resolution while analyzing.
https://books.google.com/books?id=8HrSBQAAQBAJ&pg=PA44&lpg=P...
cccccccccccccccccc
A constant block length ΔT yields a constant frequency resolution ΔF.
https://books.google.com/books?id=AJFwAgAAQBAJ&pg=PA213&lpg=...
cccccccccccccccccccc
This means that a constant frequency resolution, used in the FFT method, may be insufficient to resolve lower frequency notes if the size of the analysis window in the time domain is not large enough.
http://stackoverflow.com/questions/65268/how-do-you-analyse-...
cccccccccccccccc
algorithmic design is much simpler with constant frequency resolution, such that this option is most often used in audio processing algorithms.
http://recherche.ircam.fr/anasyn/roebel/amt_audiosignale/VL1...
ccccccccccccccccccc
FFT delivers a spectral representation with a constant frequency resolution across the entire frequency range covered,
https://www.head-acoustics.de/downloads/eng/artemis/D5017_Ar...
http://www.mathworks.com/help/ident/ug/controlling-frequency...
cccccccccccccccccccccccccccccccccccccccccccccc
This means that the low-frequency bins
of our transform axe constant frequency resolution (equal
to the sample rate over the temporal window length)
rather than constant Q.
http://academics.wellesley.edu/Physics/brown/pubs/highRes.pd...
cccccccccccccccccccccccccccccccccccccccccccccccccccccc
However, the window size of WFT is invariable, so there is only constant-frequency resolution and spatial resolution while analyzing.
https://books.google.com/books?id=8HrSBQAAQBAJ&pg=PA44&lpg=P...
cccccccccccccccccc
A constant block length ΔT yields a constant frequency resolution ΔF.
https://books.google.com/books?id=AJFwAgAAQBAJ&pg=PA213&lpg=...
cccccccccccccccccccc
This means that a constant frequency resolution, used in the FFT method, may be insufficient to resolve lower frequency notes if the size of the analysis window in the time domain is not large enough.
http://stackoverflow.com/questions/65268/how-do-you-analyse-...
cccccccccccccccc
algorithmic design is much simpler with constant frequency resolution, such that this option is most often used in audio processing algorithms.
http://recherche.ircam.fr/anasyn/roebel/amt_audiosignale/VL1...
ccccccccccccccccccc
FFT delivers a spectral representation with a constant frequency resolution across the entire frequency range covered,
https://www.head-acoustics.de/downloads/eng/artemis/D5017_Ar...
Discussion