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Two-Ray Ground-Reflection Model: Understanding the Difference in Phase Offsets at the Receiver
The part that is not clear to me is e−jΔϕ: How is that derived from e−j2πl/λ and e−j2π(x+x′)/λ?
Attempting to take $e^{-j2\pi l/\lambda}$ as a common factor we get
$$
\left|e^{-j2\pi l/\lambda}
\...
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