上海海事大学 Shanghal Maritime University A step backward Every bandlimited signal( B Hertz) can be perfectly reconstructed from uniform sampling if the sampling rate is greater than 2B ∑m(n)h(t 丌-BL "Success has many Atheist. "n Whittaker Nyquist Kotelnikov Shannon 1915 1928 1933 1949 XX A step backward Nyquist 1928 Shannon 1949 Kotelnikov 1933 “Success has many fathers …” Whittaker 1915  Every bandlimited signal ( Hertz) can be perfectly reconstructed from uniform sampling if the sampling rate is greater than