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correlation

Correlation coefficient between two antennas in array

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Syntax

correlation(array,frequency,elem1,elem2,z0)
rho = correlation(array,frequency,elem1,elem2,z0)

Description

example

correlation(array,frequency,elem1,elem2,z0) calculates and plots the correlation coefficient between two antenna elements, elem1 and elem2 of an array. The correlation values are calculated for a specified frequency and impedance and for a specified impedance z0.

example

rho = correlation(array,frequency,elem1,elem2,z0) returns the correlation coefficient between two antenna elements, elem1 and elem2 of an array.

Examples

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Open Live Script

Plot the correlation between 1 and 2 antenna elements in a default linear array over a frequency range of 50MHz to 100MHz.

h = linearArray;
correlation (h,50e6:1e6:100e6,1,2);

Figure contains an axes object. The axes object with title Correlation coefficient (Element1, Element2), xlabel Frequency (MHz), ylabel Magnitude contains an object of type line.

Open Live Script

Calculate correlation coefficient of default rectangular array at a frequency range of 50MHz to 100MHz.

h = rectangularArray;
rho = correlation (h, 50e6:1e6:100e6, 1, 2)
rho = 51×1

    0.1414
    0.1120
    0.0823
    0.0521
    0.0212
    0.0105
    0.0432
    0.0765
    0.1096
    0.1410
      ⋮

Input Arguments

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Array object, specified as a scalar.

Frequency range used to calculate correlation, specified as a vector in Hz.

Example: 50e6:1e6:100e6

Data Types: double

Antenna elements in an array, specified as a scalar.

Reference impedance, specified as a scalar in ohms.

Example: 70

Data Types: double

Output Arguments

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Correlation coefficient between two antenna elements of an array, returned as a vector.

References

[1] S. Blanch, J. Romeu, and I. Corbella. Exact representation of antenna system diversity performance from input parameter description. Electron. Lett., vol. 39, pp. 705-707, May 2003.

Version History

Introduced in R2015a

See Also

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