Ecoinformatics Problems of the World Ocean - New Ecoinformatics Tools in Environmental Science: Applications and Decision-making - page 340

Fig. 4.32 Spectral re fl ection coefficients for oil and water

n = 7 the basic spectral characteristics of the channels are given in Fig. 4.33 .Itis
easy to see that the spectral characteristics of the Adaptive Identi

er interference

filters have pronounced maxima and insigni cant intersections. The maximal

conductance of the channels is observed under ʻ 1 = 398 nm, ʻ 2 = 439 nm, ʻ 3 =

480 nm, ʻ 7 = 680 nm. A typical

correlation matrix with the addition of the solar radiation spectrum [

ʻ 4 = 510 nm, ʻ 5 = 583 nm, ʻ 6 = 631 nm, and

ʻ 0 , ʻ n ]is

represented in Table 4.15 . The stability of this matrix equals to 5 %.
An increase in the size of n certainly expands the possibilities for oil pollution
classi er gives such possibilities. A combined use of real-

time spectrometry measurements and data processing methods has been imple-
mented for the

cation. Adaptive Identi

first time in an Adaptative Identi er. Its creation becomes possible

due to the new approach in the field of polarization optics. An effective elemental

basis for polarization optics and a method of discrete modulation of the polarization
mode have been developed (Kovalev et al. 1999). The application of simple and
highly effective polarization switches and sets of silicon photodiodes with arbitrary
access to them has essentially simpli ed the problem of creating compact and

cheap polarization-optical devices: spectro-photometers, spectro-polarimeters,

spectro-ellipsometers etc.
The technology of combined use of spectrometry and algorithms of identi ca-

tion and recognition has allowed the creation of a standard

integral complex of instrumental, algorithmical, modular and software tools for the
collection and processing of data on the aquatic environment with forecasting and
decision-making functions. The adaptive identi

— for the first time —

er of a second version has a set of

modi cations intended on application under different conditions. A stationary

version covers the complete set of technical and algorithmic tools providing for
real-time measurements. This version can be used if a power supply line with a
voltage of 220 V is available. A handhold

field version of the Adaptive Identi er

provides two applications. If a notebook computer is available under field