Research Article

Information Entropy- and Average-Based High-Resolution Digital Storage Oscilloscope

Table 1

Ideal values of improved vertical resolution and bandwidth based on average-based decimation under oversampling.

Sampling rateOversampling factorTotal resolution−3 dB bandwidth

1 GSa/s18.0 bits440 MHz
500 MSa/s28.5 bits220 MHz
250 MSa/s49.0 bits110 MHz
100 MSa/s109.7 bits44 MHz
50 MSa/s2010.2 bits22 MHz
25 MSa/s4010.7 bits11 MHz
10 MSa/s10011.3 bits4.4 MHz
1 MSa/s100013.0 bits440 kHz
100 kSa/s1000014.6 bits44 kHz