To reiterate that point: consider sampling the upper spectrum this sort of which the new sampling rate is at half of $f_ s1 $, proper in the middle of your "substantial frequency" spectrum parts we depicted. That means then that the spectrum centered concerning this new sampling rate will have https://pg-in-sector-15-gurugram-45.webselfsite.net/blog/2025/07/27/book-modern-pg-for-boys-in-gurgaon-%E2%80%93-osmstays1