An Accurate and Fast Method for Improving ADC Nonlinearity

Table 1

Proposed method performance versus KF with sampling frequency of 10 kHz.

(Sampling frequency 10 kHz; error rate 0.01)
Sawtooth						Sine wave
Kalman filter [19, 20]				Proposed algorithm		Kalman filter		Proposed algorithm
Parameters		ENOB	SNR	ENOB	SNR	ENOB	SNR	ENOB	SNR
Q	50	7.2	45.3	9.5	59.6	9.2	57.3	9.5	59.2
R	15
Q	50	6	37.9	9.6	58.7	9.4	58.8	9.5	59.2
R	5
Q	90	6.3	39.9	9.5	58.7	9.3	58	9.5	59.1
R	20