getSpectrumData

Save spectrum data shown in spectrum analyzer

Syntax

spectrumTable = getSpectrumData(scope)

Description

spectrumTable = getSpectrumData(scope) returns the spectrum and spectrogram displayed on the spectrum analyzer along with additional statistics about the spectrum.

Examples

Save Spectrum Data

Save the spectrum estimation displayed on a spectrum analyzer.

Create a Spectrum Analyzer System object, scope, and generate data.

scope = dsp.SpectrumAnalyzer;
scope(randn(5000,3))

Save data from the last spectrum shown on the spectrum analyzer to a table.

specTable = getSpectrumData(scope)

specTable =

  1x3 table

    SimulationTime       Spectrum        FrequencyVector
    ______________    _______________    _______________

        {[0]}         {1536x3 double}    {1536x1 double}

Input Arguments

scope — Spectrum analyzer

system object name | block configuration

Spectrum analyzer you want to query. Specify a dsp.SpectrumAnalyzer System object™ or a Spectrum Analyzer Configuration object for a spectrum analyzer block.

Output Arguments

spectrumTable — Data about current spectrum estimation

table

A spectrum table is returned containing the following fields:

Field	Description
SimulationTime	Simulation time
Spectrum	Power, power density, or RMS spectrum data
Spectrogram	Spectrogram data
MinHoldTrace	Minimum hold trace data
MaxHoldTrace	Maximum hold trace data
FrequencyVector	Frequency vector