Fig. 5
From: Multi-tier dynamic sampling weak RF signal estimation theory
Estimates (blue “x”) with actual values (red open circles) using \(f_{N=2}\) sampled at 5.2 GSPS for a strong signal with \(f_1 = 850\) MHz with weak signal (a) frequency and (d) amplitude; Relative error in estimates of weak signal (g) frequency and (j) amplitude; sampled at 1 GSPS for weak signal (b) frequency and (e) amplitude; Relative error in estimates of weak signal (h) frequency and (k) amplitude; sampled at 65 msps for weak signal (c) frequency and (f) amplitude; Relative error in estimates of weak signal (i) frequency and (l) amplitude