How can the doppler spectrem be obtained from a S21(t) time sweep?

10 May 2017 0 6K Report

I have done a time sweep and measured S21(t) in a reverberation chamber. I am now looking for the mathematical relationship to determine the Doppler shift and the coherence time?

Badges
Science topic

More Vikesh Shivik's questions See All

How to get scattered plot in SPSS when there is one dependent variable and multiple independent variables?

I want single scattered plot in which I include one dependent and 5 independent variables . Please guide me how to get such plot

13 February 2020 5,519 4 View

How to determine potential of the Tourist Area?

Namaskaram Everyone, I am working on the tourist area wherein i have to check the potential of particular area. So, please suggest how can i determine the potential ? i need recommendation of...

18 December 2019 2,263 1 View

Matlab help: detremining the Maximum doppler shift

I have the a matlab file and data, I need to integrate and determine the frequency where 95 % of the power is contained, this is the maximum doppler frequency. Since I have no expierence with...

29 June 2017 5,944 1 View

How to apply autocorrelation on measured data in matlab?

I have the measured data from a vector network analyzer. I need to do a autocorrelation in time on this data. After that I need to look at the time span over which the signal level is -3dB from...

15 May 2017 6,377 4 View

Phase fluctuations increasing receiver bandwidth?

If there is an very narrow band system that experiences ultra fast fading with fading dips leading to phase fluctuations how does this increases the signal bandwith?

10 April 2017 6,467 3 View

Absorption behaviour of anechoic model?

I have modelled a unit-cell of an anechoic structure using ANSYS. The layer is silicone and has been assigned as an acoustics physics region, with an air cavity inside (the air has been modelled...

18 February 2021 4,119 1 View

Need a research paper for multi speaker and single microphone acoustic echo cancellation?

Hi, I am working on a problem that involves multiple smartphones/tablets. All devices are playing the same sound with synchronization difference up to +- 5ms. Now, there is an echo issue and I...

02 February 2021 5,929 3 View

How can I quantify background noise in a bioacoustic file?

I am using Audacity to analyse the presence of birds and frogs recorded with a SM4 recorder (Wildlife Acoustic). Background noise (rainfall, wind) is an important variable to consider that can...

28 January 2021 2,989 3 View

ANSYS, how is far-field acoustic pressure calculated (from which underlying surface)?

In ANSYS, as in also e.g. COMSOL Multiphysics, you can calculate a far-field acoustic pressure outside the explicit FEM domain. However, whereas in COMSOL Multiphysics you define a certain closed...

04 January 2021 3,076 8 View

Drones used to study canopy species?

Has anyone used a drone equipped with a microphone/camera to study the acoustic behavior of canopy species of frogs and/or birds?

21 December 2020 7,664 17 View

Is there any way to calibrate transducer without needle hydrophone?

Is there any way to calibrate transducer without needle hydrophone? Also any one know low cost hydrophone as precision acoustic is quite costly.

16 December 2020 1,070 2 View

Using Matlab and the analytical solution for Room acoustic modeshapes, is it possible to plot modes in 3D?

mode shapes similar to attached image.

27 November 2020 4,262 7 View

How to compute buffet Forcing Function?

Dear Enthusiasts, I hope you are enjoying your research. I have a new topic (well, to me at least) and I want your valuable ideas on it. I want to compute Buffet Forcing Function on an aerodynamic...

15 November 2020 8,357 2 View

In online GC-FID/TCD connect to flow reactor, why I am getting instable peak area in FID in every injection under same conditions?

We have online GC-FID and GC-TCD (Mod: 2014) connected with flow reactor system. This GC-FID/TCD is connected to a gas line coming from flow reactor system which I used for cascade reaction. In...

11 November 2020 4,999 6 View

Independent Component Analysis, Have you used this approach? In what problem?

I have used ICA for the problem of mixing acoustic and UHF signals from partial discharges. I know that it has been used in Biomedical, Acoustic, and many other fields. Do you comment on how you...

09 November 2020 630 2 View