Assessing the Efficiency of Using Multipath Signals of an «Outside» Radar for Covert Determination of Coordinates of Ships and Aircrafts
Abstract
Purpose: When you detect a group of surface and air targets covered by active noise generators operating in groups, the on-board active radars cannot effectively determine the target coordinates. To solve this problem, the on-board electronic surveillance systems can use multipath signals from the adversary's radars working in the conflict area as a source of electromagnetic energy, in its normal mode illuminating the nearby targets. The purpose of this work is to quantitatively define how passive airborne electronic surveillance systems can use multipath signals from particular types of radar on ships and aircrafts, specifying the coordinates of the targets which make up the group. Methods: We have to obtain the correlations which would bind the distances between the conflicting objects with the errors in specifying the target coordinates, technical characteristics of radiators, effective surface of target scattering and the input capacity of the on-board electronic surveillance system. Results: Families of curves have been built to rapidly assess the possibility for electronic surveillance stations to function in the mode of receiving multipath signals when, under heavy adversary's jamming which makes the specification of the target coordinates difficult or impossible, there are ways to use «outside» covert radars to estimate distances to the targets with the required accuracy in a wide range of conditions. The choice of conditions primarily involves defining the priority number for the illuminating radars by object detection parameters; the choice criterion is the maximum of product Rd (the factors are the distances from the observer to the illumination radar and from the observer to the object) when the signal reception is provided with a given probability. The second condition for choosing the radar type is the possibility to obtain information about the coordinates of the object with the specified accuracy. The values of the factors in the product Rd are determined using the ratios and graphs whose examples are listed in the article.Published
2015-08-01
How to Cite
Melnikov, Y. (2015). Assessing the Efficiency of Using Multipath Signals of an «Outside» Radar for Covert Determination of Coordinates of Ships and Aircrafts. Information and Control Systems, (4), 108-113. Retrieved from http://proceedings.spiiras.nw.ru/index.php/ius/article/view/4361
Issue
Section
Information and measuring systems