function [f_beat] = rng2beat(rng, f_slope, c0)

% Objective : Converting the range [m] of a dechirped linear FMCW signal to
% its corresponding range, beat frequency [Hz]
%
% f_beat = (2 * f_slope * rng) / c0
%

if isempty(c0)
    c0 = physconst('LightSpeed');
end

f_beat = 2 * rng / c0 * f_slope;

end