Optimization of signals detection systems on the background clutter
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2017, Vol 0, Issue 68
Abstract
Introduction. The article deals with the optimization of a moving target signals detection systems against clutter on probabilistic criteria. The object of research is the detection system implementing coherent rejection of clutter followed by coherent or non-coherent accumulation of rejection residues. The purpose is to optimize rejector filter weight coefficients depending on the correlation properties of clutter on probabilistic criteria. Probabilistic characteristics of the detection systems. The expressions for the probability characteristics of the detection systems with coherent rejection clutter and subsequent coherent or non-coherent accumulation of rejection residues are obtained respectively. These expressions establish a functional relationship between the averaged on Doppler signal phase of the correct detection probability and correlation clutter parameters and detection system characteristics. The optimization procedure. The criteria to optimize the weight vector of the rejector filter is listed. These criteria make it possible to communicate the optimal weight vector with clutter parameters on the basis of non-linear programming methods. The quasi-Newton iterative procedure for finding the optimal vector is shown. The restrictions are introduced on samples rejector filter frequency response to achieve unimodal extremum. The numerical results of optimization. We consider the results of numerical optimization system of coherent rejection and subsequent non-coherent accumulation on probabilistic criteria. A comparison of their results with the same optimization of the rejector filter on energy criteria is conducted. Conclusion. The proposed optimization method of detection systems on probabilistic criteria allows to obtain significant gains in the efficiency of detection signals compared with the optimization on energy criteria and to implement the limit efficiency for this class of systems.
Authors and Affiliations
D. Popov
Keywords
Related Articles
- EP ID EP308221
- DOI 10.20535/RADAP.2017.68.33-37
- Views 54
- Downloads 0
The hyperbolic-accidental characteristics of thermal processes in devices of the radioelectronic apparatus
Thermal process in devices REА are submitted as hyperbolic-accidental of function. Are considered е of the characteristic of mathematical models and their decisions. The example of definition of the numerical characteris...
Microstrip filters, based on ring resonators, in the short part of decimeter wavelength band
The results of an design of theoretic and experimental research of a microstrip filters, based on ring resonators, which enable to reduce their dimensions in the short part of decimeter wavelength, have the improved elec...
Spectrum analysis of complicated radiolocation signal with binary phase manipulation by Kasami sequence
Introduction. This article contain short introduction to history of complicated signals and list of common sequences, used in spectrum spreading. Method of creating Kasami sequences. In this article is shown sequence cr...
Effect of acceleration in optimization of the electronics circuits
An additional acceleration effect has been analyzed for the electronic circuit optimization process. This effect has been appeared due to the different behavior of the design trajectories whenever the vector of the contr...
Modelling of the multifunctional generator of video and radio signals in program application LabVIEW
It is considered the possibility of using the program application Labview for program modelling of the multifunctional generator of video and radio signals.