Research Article

Multichannel Blind Deconvolution Using the Stochastic Calculus for the Estimation of the Central Arterial Pressure

Table 1

The first performance measure (SNRE).

MethodsSNRE0.0SNRE0.012SNRE0.024SNRE0.037SNRE0.049SNRE0.0615

FIR-2 order9.006 db7.061 db6.730 db6.380 db6.073 db5.995 db
FIR-4 order12.349 db11.248 db11.076 db10.974 db10.582 db10.108 db
Stochastic Calculus23.296 db22.049 db21.047 db20.727 db19.400 db18.199 db

The multichannel blind deconvolution (MBD) technique was applied by using the conventional method (FIR-2 model with two orders and FIR-4 model with 4 orders) and the proposed method (OU model or stochastic calculus). We compared between these methods by using performance measure SNRE (3.1) at variant noise. SNRE0.0 is the signal to noise ratio of the estimate of Aortic AP with free noise. SNRE0.012 is the signal to noise ratio of the estimate with noise variance = 0.012, SNRE0.024 with noise variance = 0.024, and so forth.