РЕСУРСОЭФФЕКТИВНОЕ УПРАВЛЕНИЕ РАДИОЛОКАЦИОННОЙ СТАНЦИЕЙ ДАЛЬНЕГО ОБНАРУЖЕНИЯ ДЛЯ НАБЛЮДЕНИЯ ВЫСОКООРБИТАЛЬНЫХ КОСМИЧЕСКИХ ОБЪЕКТОВ С ОДНОВРЕМЕННЫМ КОНТРОЛЕМ БАРЬЕРНОЙ ЗОНЫ

Abstract

Radar surveillance (RS) of space objects has a number of advantages over the optical one. An urgent task is the RS of remote spacecraft, including high Earth orbit (HEO) spacecraft with the apogee height of more than 2500 km above the Earth's surface. In modern radars, well-known models, methods and technical solutions for observing remote spacecraft are implemented by increasing the duration (energy) of transmitted signals and observation time. This restriction does not allow to simultaneously detect and track objects of the "barrier zone" (BZ) while solving routine tasks using a long-range detection (LRD) radar. As a result, the radar throughput may decrease. It is proposed to use resource-efficient methods of multi-scanning monitoring (MSM). The methods make it possible to efficiently accumulate the energy of echo signals received during several radar observations. Purpose. In this paper, we research how to ensure the required throughput of the LRD radar when monitoring the BZ and observing the HEO objects using the MSM methods in conditions of a limited time resource. The study sets and solves the task of resource-efficient management of the LRD radar. This method consists in planning and organizing RS of the LRD radar for observation of the HEO objects with simultaneous control (detection and tracking) of BZ objects. In general, we formulate the task of RS of remote spacecraft and substantiate the algorithm for planning and organizing a RS for monitoring the HEO objects in conditions of a limited energy (time) resource. Methods. Analytical methods are used to substantiate the algorithm of resource-efficient control of the LRD radar using the MSM methods. Resource-efficient management is based on the use of a priori information about the parameters of the HEO objects trajectories, planning, organization and joint processing of RS results. The model of the LRD radar with the MSM channel is also substantiated in the form of a queuing system for assessing the radar throughput. Results. The simulation results indicate maintenance of the required throughput of the radar during the observations of the radar. It confirms the operability and effectiveness of the radar control method for solving the problem of simultaneous observation of the radar and monitoring of the objects of the BZ. Conclusion. The structure of the radar with the MSM channel and the method of resource-efficient management allow to implement the monitoring of the HEO objects with simultaneous detection and tracking of BZ objects. In contrast to the existing ones, the proposed algorithm for planning and control of the surveillance provides the required radar throughout during monitoring of the HEO objects.