The given development is dedicated to building IIR and FIR filters that allow recovering the initial signal from the received one based on frequency and phase response of the channel.
It is the Levy method that is used to build the filters. It enables generation of an analog filter minimizing an external environment error. A signal is restored with the use of an inverse IIR filter produced from the previously calculated analog one. Direct methods of inverse filters generation yielded an unstable result, and therefore we used the reflection of roots leading to destabilization to stabilize IIR filter; the given method does not alter the frequency response filter but makes it stable.
Building IIR and FIR filters for signal recovery
Developed for: OOO “GeoPhysTechnika”, Saratov, RussiaPurpose: restoration of the signal distorted during transmission to its initial condition with available physical line indicators
Specification
| Client: | OOO “GeoPhysTechnika” , Saratov, Russia |
| Area of use: | geophysical researches, signal processing |
| Type (platform): | .NET-classes library |
| Technologies and algorithms in use: | .NET, C#, IIR-filter recovery using frequency response/phase response (Levy method), polynomial roots-finding procedure, eigenproblems |
| More information: |
References:
Other materials:
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