## 3 Results and Discussion
### The Mechanism of the Formation of the Multiscan Video Signal on the Basis of Its Impulse Response
In this case, the dissipation of the system response is described by the following expression:  
\[D\big{[}v(\hat{t})\big{]}=D\big{[}f(\hat{x})\big{]}+\sum_{i=1}^{n}D\big{[}h( \hat{t}-\hat{x})\big{]} \tag{24}\]  
Expression (24) demonstrates the main dissipation property--the property of additive accumulation when the signal is passing through the sequence of linear units. Thus, observing the smeared-out signal registered by the MOD, and knowing the impulse response of the MOD, it is possible to compute the real values of light zone width and brightness. The dissipation property of additive accumulation is very important for the estimation of the video pulse parameters \(f(\hat{t})\) by the observed MOD response \(v(\hat{t})\). In [31] it is shown that SSPs allow a sufficiently accurate estimation of the duration of narrow rectangular pulses by their smeared-out video pulses. Using the spatio-structural MOD model, it is assumed  
Figure 7: Generalized model of the multiscan-based optoelectronic device. to describe the MOD video signal in the form of the SSP vector \(S_{v}=(M_{v},C_{v},D_{v},E_{v},Y_{v})\), and the MOD pulse response in the form of the vector \(S_{h}=(M_{h},C_{h},D_{h},E_{h},Y_{h})\). The SSP vector of the observed MOD response \(S_{v}\) is computed by the MOD video signal, and vector \(S_{h}\) by the MOD pulse response (1, 15). In this case, it is possible to estimate the light zone width and illumination as follows:  
* LZ profile \"dissipation\": \[D_{f}=D_{v}-D_{h}\] (25)
* LZ profile \"extent\": \[M=W_{0} \tag{18}\]0 (26)
* LZ profile \"brightness\": \[M=W_{0} \tag{18}\]1 (27)
* LZ profile \"centroid\": \[M=W_{0} \tag{18}\]2 (28)  
In Equation (25) the operation of the subtraction of the pulse response dissipation \(D_{h}\) from the video signal dissipation \(D_{v}\) allows us to take into account the value of the VS smearing-out by the reception system when the light zone width is estimated in accordance with the property of additive accumulation of dissipation. The light zone coordinate and width of the multiscan are traditionally determined by the first or second derivatives of the MOD video signal OUM \(v(\hat{f})\) (Figure 4c). However, in [31] it is also shown that the narrow light zone width determined by the VS derivates is significantly overestimated. Moreover (as it follows from Figure 2), in the case of a narrow LZ, the amplitude of the observed MOD response \(v(\hat{t})\) significantly decreases and its reconstruction directly by the signal \(v(\hat{t})\) is impossible. Nevertheless, the first and second derivatives of the video signal \(v(\hat{t})\) allow a highly accurate determination of the coordinates of the middle of the zone (including a narrow zone), which is widely used in equipment. In the present paper, a method is offered for a full reconstruction of the light zone profile (both wide and narrow) with the use of SSPs. The width of the zone profile corresponds to the extent, and is determined by expressions (25) and (26); brightness by Formula (27), and the coordinate of the middle by expression (28). A number of experiments were carried out for the reconstruction of the LZ profile geometry and spatial location on the multiscan. With this purpose, on the MS photosensitive surface, a light zone was formed which was gradually broadening. The multiscan width was taken as 1 and the measurements of the zone coordinates and width were performed in the relative units of its length. The light zone width varied from 0.00001 to 0.1 depending on the multiscan length, and its video signal was digitized and processed by the digital method with the use of the MP (Figure 3). For the reconstruction of the light zone profile and the coordinates of its middle, both the conventional approach with the use of the first derivative of the VS and the alternative method with the use of the SSPs offered in the present paper were used. Figure 8 shows the measurement results for the normalized value of the LZ width, which has been measured in accordance with expressions (25) and (26) for the SSPs.