correlation

Correlation coefficient between two antennas in array

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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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);

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
    0.0822
    0.0520
    0.0212
    0.0106
    0.0433
    0.0767
    0.1098
    0.1412
      ⋮

Input Arguments

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Array object, specified as a scalar handle.

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 handle.

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.

Introduced in R2015a