RU-2861679-C1 - METHOD FOR DETECTING AND ATTACKING UNDERWATER OBJECT BY AIRCRAFT

RU2861679C1RU 2861679 C1RU2861679 C1RU 2861679C1RU-2861679-C1

Abstract

FIELD: military equipment. SUBSTANCE: use: invention relates to methods for detecting and attacking marine objects by aircraft. Essence: a method for detecting and attacking an underwater object by an aircraft, wherein one or more search-and-strike devices capable of performing independent controlled flight are loaded onto the aircraft, prepared for launch, coordinates of the splashdown point are calculated and the flight program is entered into its onboard control system, one or more search-and-strike devices are launched and controlled flight to the calculated point is performed, where the search-and-strike device is splashed down, the search system of the search device is submerged to a specified depth and the underwater space is surveyed by it, information about the start of operation of the search device is transmitted to the control point and/or aircraft via a radio communication channel, upon detection of an underwater object by the search device, it is tracked and the control point is informed, upon detection of the underwater object by the strike device, it is separated, aimed at the object and the object is attacked, according to the invention, the number of search-and-strike devices used by the aircraft and the coordinates of their splashdown points are calculated to allow overlapping of the sector of probable courses of the underwater object or the area of its possible locations by the total detection area of the target by search devices, at the control point and/or aircraft, based on observation data of the detected underwater object, coordinates and parameters of its movement are calculated, as well as the speed, guidance trajectory and launch time of the nearest strike device, the aircraft should avoid a course towards the detected underwater object and approaching it at a distance of less than 5 km. EFFECT: ensuring target detection, minimum time for its attack and safety of the aircraft. 1 cl, 2 dwg

Inventors

NOVIKOV ALEKSANDR VLADIMIROVICH
Dyachkov Denis Ivanovich
LEDOV ALEKSEJ VENIAMINOVICH

Dates

Publication Date: 20260507
Application Date: 20241111

Claims (1)

A method for detecting and engaging an underwater object by an aircraft, which involves loading one or more search-and-strike devices capable of independent, controlled flight onto an aircraft, preparing it for launch, calculating the coordinates of the splashdown point and entering the flight program into its on-board control system, launching one or more search-and-strike devices and carrying out a controlled flight to the calculated point where the search-and-strike device is splashed down, lowering the search system of the search vehicle to a specified depth and surveying the underwater space with it, transmitting information via a radio communication channel to the control center and/or the aircraft about the start of the search vehicle operation, upon detection of the underwater object by the search vehicle, establishing surveillance over it and informing the control center, upon detection of the underwater object by the strike vehicle, separating it, aiming at the object and engaging it, characterized in that the number of search-and-strike devices is selected, and their splashdown points are placed in such a way as to ensure overlapping of the zones of action of the search vehicles along the expected section of movement of the underwater object, on At the control point and/or the aircraft, based on the observation data of the detected underwater object, the coordinates and parameters of its movement are calculated, as well as the speed, guidance trajectory and launch time of the nearest strike vehicle, the flight of the aircraft is controlled in such a way that its course is not directed towards the detected underwater object and the distance to it is maintained at least 5 km.

Description

The described proposed invention relates to methods for detecting and destroying underwater marine objects by aircraft. Detection of various objects in the shortest possible time and with the least expenditure of effort is one of the most important tasks of search theory [1, p. 183], which reduces the entire diversity of search situations to three main types of search: 1) on an area (in a given region); 2) on a line (at the border); 3) according to detection data from other forces (secondary search or search on call) [1, p. 218]. The primary goal of search theory is to develop and substantiate an effective method for target detection, i.e., the observer's actions to effectively locate the search object in the shortest possible time. This goal is achieved by solving a number of research problems, the most important of which are [1, pp. 3-4]: - establishing cause-and-effect relationships between the search conditions and its results; - analysis of the physical principles of search, including consideration of search objects, detection means and search environment; - establishing kinematic patterns of mutual movements of the observer conducting the search and the search object, leading to their convergence to the range of detection equipment; - justification of optimal search methods that ensure maximization or minimization of selected performance criteria; - justification of the optimal distribution of search resources. The prototype of the invention is a well-known method for detecting and destroying an underwater target [2], in which an aircraft with a search and strike system is used to detect and destroy an underwater target, combining a means of searching for underwater objects - a radio-hydroacoustic buoy (RHSB), and a strike means for destroying the detected object - a self-propelled underwater projectile or a rocket-propelled floating underwater projectile [3]. The disadvantage of this method is that it does not provide for the ability to engage an underwater target with an aircraft. Modern submarines are known to be equipped with anti-aircraft missiles: in 2012, the German company Diehl Defense developed the IDAS (Interactive Defense and Attack System for Submarines) anti-aircraft missile system. The IDAS system contains four anti-aircraft guided missiles stored in a 533mm transport and launch container, launched from the submarine's torpedo tube while submerged. The missiles are equipped with an infrared homing head and a fiber-optic remote control system and are designed to engage enemy helicopters, small ships, and coastal facilities at ranges of up to 20 km. The source of primary information about an air target is the submarine’s hydroacoustic system, which is capable of detecting a helicopter in a submerged position in noise direction-finding mode at a distance of up to 10 km and determining its course based on the rate of change in the bearing on it [4]. The introduction of anti-aircraft weapons into submarine service has altered the balance of power in the fight against them and requires changes in aircraft tactics and their armament. The prototype [2] addresses the need to reduce the number of aircraft flights to a target and enables the launch of combined search-and-strike devices for target detection and subsequent engagement. The prototype's effectiveness is demonstrated by its minimal time between target detection and engagement. However, the prototype does not resolve the contradiction between the requirements of increasing the target detection range of the search vehicle and ensuring the ability to engage it with the strike vehicle at this range. Moreover, the strike vehicle is guided to the target only after it has detected the target. This property constitutes the second drawback of the prototype. Increasing the range of the strike underwater vehicle is achieved in two ways. The first method involves increasing its energy resource, and, consequently, the weight and size characteristics of the underwater vehicle. For an underwater vehicle delivered by an aircraft carrier, this option is not suitable due to the limited carrying capacity of the aircraft. The second method is based on changing the propulsion modes of the underwater vehicle and using the performance indicator. This method is used for multi-mode underwater vehicles in order to increase their range. The performance indicator of the underwater vehicle is determined by the formula [5]: where ХК is the running quality, D is the cruising range, V is the speed of movement. The running quality indicator is used to evaluate the technical perfection of underwater vehicles with the same hull shape and similar dimensions (volume, caliber and length) and to calculate the cruising range depending on the speed of movement. Thus, using formula (1), it can be calculated that if an underwater vehicle with a speed of V 1 = 30 knots has a range of D 1 = 2 km, then theoretically, with a speed of V 2 = 10 knots, it should travel a distance of D