And because the spectrum of a discrete time sign, this very same spectrum will periodically repeat if we extended the frequency bigger outside of $f_s$ these kinds of that the spectrum demonstrated can be precisely the same spectrum in each and every frequency band from $nf_s$ to $(n+one)f_s$ for any https://pginsector15gurugram.news.blog/2025/07/28/book-modern-pg-for-boys-in-gurgaon-osmstays/