Fourier series and $f(x)=\sum_{h=-\infty}^{+\infty} y(h) e^{-i h x}$.

Question

After some calculation on real function $f(x)$, I obtain the following $$f(x)=\sum_{h=-\infty}^{+\infty} y(h) e^{-i h x}, \ \ x\in\mathbb R $$ where $y(h)$ are equally spaced samples of a real function $y(x)$. How RHS of the previous equation is interpretable? Can it be viewed as a Fourier series?