Unmasking the soil cover's disruption by use of a dynamic model of measurement aerospace parameters of ground vegetation
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2016, Vol 0, Issue 64
Abstract
The "Introduction" describes topicality and importance of revealing the soil cover's disruption for a wide range of fields. It was shown that spectral brightness and colorimetric parameters of ground vegetation can be used for this task. However, a traditional scheme of data processing for remote sensing requires a long-term observations and can not always be applied, if quick decision-making is necessary or there is lack of information. Such cases require the use of special methods, one of which is a dynamic model developed with authors' participation based on the following basic relationships: (+,-) (-, -) (+, 0), (-, 0) (0,0). The section "Brief description of a dynamic model" describes the basic principles of dynamic systems used to solve the problem. Using above-mentioned relationships, the dynamics of a system consisting of several components is constructed and its main properties are listed. The main feature of this model is that the identification of structure and parameters of the dynamic system does not required sequential order of observations (as for models based on time series). This feature of the model enables for identifying the system's parameters of dynamics of the natural system to use information from a single picture taken from the spacecraft rather than long-term observations. The section "Materials and Methods" describes specific colorimetric parameters used to analyze the vegetation cover. The section "Obtained results" contains an example of the model's application to a satellite image for detecting the differences in two sites of a field with vegetation. One site is a recultivated area near the liquidated gas-oil well, another site is non-recultivated area at a considerable distance from the well (500-1000 m). The simulation results are described by eight signed graphs (4 graphs for each sites), whose structure allows to identify the system differences between the two cases. The section "Conclusions" summarizes the results of previous sections. The prospects of the use of proposed methodology for soil cover's disruption are shown. Advantages of this methodology over other approaches are highlighted.
Authors and Affiliations
E. Vysotskaya, G. Zholtkevych, T. Klochko, Yu. Bespalov, K. Nosov
Method of estimate level complication of the educate test.
A model of educational tests assessing their level of complexity. An algorithm for testing, named testing for the supremum of complexity.
The way of managing traveling wave tube
It was analyzed the problems that arise while managing a modulator of traveling wave tube. The modulator is under high voltage potential on the cathode of TWT and ensures the formation of pulses with the necessary parame...
Origin and development of scientific method
In the article short-story history of origin and development of scientific method of cognition of nature is presented from the most ancient times to our days. It is marked that he was folded during great while and only a...
Interpolating and filtering decoding algorithm for convolution codes
There has been synthesized interpolating and filtering decoding algorithm for convolution codes on maximum of a posteriori probability criterion, in which combined filtering coder state and interpolation of information s...
Silicon-germanium wiskers as sensitive elements of strain sensors, operating in harsh conditions
Introduction. The paper deals with investigation of electrophysical performances of Si1-xGex whiskers as strain sensors, operating at harsh conditions, in particular at liquid helium temperatures, and development of mea...