How to estimate RCSs of Target such as Civilian Helicopter, UAV and Aircraft etc ? Are there any emperical method ?

How can I estimate the range of Radar Cross Sections (RCS) for various aircraft and helicopters ? Are there any simple model ?

[Tenzing Thiley]

Could anyone help me?

Answer 1

[Anurag]

Hi Tenzing,

I understand that you want to estimate the Radial Cross Sections for various aircrafts and helicopters using kinetic parameters.

You can do that using the empirical formulas that can provide rough estimates based on kinematic parameters.

Here's a simple approach you can use in MATLAB:

% Parameters

speed = 100;        % Speed of the aircraft (m/s)
turnRate = 0.1;     % Turn rate of the aircraft (rad/s)
range = 5000;       % Range from the radar (meters)
wavelength = 0.03;  % Wavelength of the radar signal (meters)

% Estimate RCS range
estimatedRCS = estimateRCSRange(speed, turnRate, range, wavelength);



% Display the result
fprintf('Estimated RCS: %.2f m^2\n', estimatedRCS);

Estimated RCS: 3827935392629606318080.00 m^2

function estimatedRCS = estimateRCSRange(speed, turnRate, range, wavelength)
% Constants
Pt = 1e6; % Transmitted power (in Watts)
Gt = 1;   % Transmitting antenna gain
Gr = 1;   % Receiving antenna gain

% Radar Range Equation with turn rate
estimatedRCS = (Pt * (4 * pi)^3 * range.^4) ./ ((speed + turnRate * range).^2 * Gt * Gr * wavelength^2);
end

Please refer to the below documentation to know more about the Radar equation:

• https://www.mathworks.com/help/radar/ug/radar-equation.html

Hope it helps,

Regards,

Anurag

[Tenzing Thiley]

In Radar equation how you take input as speed and turn rate ?

[DGM]

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