An Accurate and Fast Method for Improving ADC Nonlinearity

Table 3

Proposed method performance versus KF with a sampling frequency of 1 MHz with 0.1 error rate.

(Sampling frequency 1 MHz; error rate 0.1)
Sawtooth						Sine wave
Kalman filter [19, 20]				Proposed algorithm		Kalman filter		Proposed algorithm
Parameters		ENOB	SNR	ENOB	SNR	ENOB	SNR	ENOB	SNR
Q	50	6	37.9	9.4	58.6	9.2	57	9.52	59.1
R	15
Q	50	7.2	45.2	9.4	58.2	9.4	58.4	9.52	59
R	5
Q	90	6.3	39.3	9.4	58.5	9.2	57.6	9.5	58.9
R	20