Narrow band analysis

[vishal74]

We are working on delivering an underwater acoustic signal acquisition and analysis project, the main components of which are running LabVIEW.

Towards acceptance trials of one analysis, namely, Narrow Band Analysis (NBA), we suggested the following test taking into account a model frequency of 10kHz which will be generated by signal generator, processed by PXI controller and analysis done by a PC running LabVIEW:

Set the input frequency at 10kHz and amplitude at 5V peak to peak with below parameter setting:-

* Sampling frequency at 260kHz

* Low pass band 100 Hz

* High pass band 100 kHz

The verifiable result given by us was : Amplitude of 2.5V, at 10kHz  frequency, is displayed after FFT.

The client has commented that the test is both inaccurate and incomplete.

Can anybody suggest the problem and way ahead. We have limited knowledge of signal processing.

Thanks and Rgds

[Bob_Schor]

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@vishal74 wrote:

We are working on delivering an underwater acoustic signal acquisition and analysis project, the main components of which are running LabVIEW.

Towards acceptance trials of one analysis, namely, Narrow Band Analysis (NBA), we suggested the following test taking into account a model frequency of 10kHz which will be generated by signal generator, processed by PXI controller and analysis done by a PC running LabVIEW (details omitted)

The client has commented that the test is both inaccurate and incomplete.

Can anybody suggest the problem and way ahead. We have limited knowledge of signal processing.

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Get someone on your team with serious knowledge of signal processing who can guide you in creating the Spectrum Analyzer the client requires.  

Bob Schor

[GerdW]

The client has…

Or write a message in the Job Openings board!

(Don't forget to supply a good requirements document.)

[vishal74]

Thanks. We tried that and could not get anybody. We are doing it ourselves by studying/internet. Was looking for some help on this forum. We will be able to implement it on LabVIEW then.

Rgds