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Document Type: Example Program
NI Supported: Yes
Publish Date: Sep 6, 2006

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Computing the Envelope of a Hilbert Transform

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Filename: hilbert_trans2.vi
Requirements: View

This VI shows how to apply the Hilbert Transform to find the envelope of a time-domain signal with a simulated signal. Applications for this operation include estimating the decay rate of an impulse in the time domain and the propigation time estimation. For the Latter, you might measure a signal at two points, calculate the cross correlation of those two measurements and then use the Hilbert transform as shown in this example to find the envelope of the cross.

Requirements


Filename: hilbert_trans2.vi

Software Requirements


Application Software: LabVIEW Full Development System 5.1
Language(s): LabVIEW

 
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This example program (this "program") was developed by a National Instruments ("NI") Applications Engineer. Although technical support of this program may be made available by National Instruments, this program may not be completely tested and verified, and NI does not guarantee its quality in any way or that NI will continue to support this program with each new revision of related products and drivers. THIS EXAMPLE PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI.COM'S TERMS OF USE (http://ni.com/legal/termsofuse/unitedstates/us/).