Fig. 17
From: Multi-tier dynamic sampling weak RF signal estimation theory
Dynamic sampling at 3950 MHz with three tiers where sampling rate \(f_s\) changes based on data collected in real time: a instantaneous frequency as a function of time; b instantaneous frequency with zero crossings; c estimates and actual weak signal amplitude; d estimates and actual weak signal frequency; e zero crossing error; f relative error in the weak signal frequency estimate; g relative error in the weak signal amplitude estimate; h sample rate in each tier determined based on data collected in real time