Patent WO-2019078759-A2 (WO)
Title: "sova" radar station for site security
Inventor: PLATOV ANDREJ VICTOROVICH
IPC: G01S13/86
Filed: 2018-09-18
Abstract: The present invention relates to the field of radar, and more particularly to radar means for automatically detecting, identifying and tracking different types of mobile objects (people, land and water vehicles, low-flying small targets, etc.) at any time of the day and in any season, inter alia under conditions of poor visibility such as dust, smoke, fog, precipitation, etc., and concerns a rigid coherent Doppler radar station with continuous linear frequency modulated transmission, which can be software and hardware integrated with optoelectronic devices. The technical problem addressed is that of increasing the functional capabilities. The technical result of the claimed invention lies in providing: automatic detection and tracking not only of mobile land and abovewater targets, but also of airborne targets (parachutists, glider pilots, drones); automatic identification of the target type (technical/human) in the time that the radiation pattern of an all-round or sector-scanning antenna passes over a target; training and focusing an optoelectronic device on a detected target; displaying radar and video information on a single display of any personal computer; and operation of the invention in security systems with a network architecture. This technical result is achieved by means of the following combination of features. A radar station for site security according to the invention, containing a transmitting and receiving device, a two-axis pedestal mountable on a tripod, a mains-operated power supply, and a set of software products, further comprises a slotted waveguide receiving antenna and a slotted waveguide transmitting antenna, and a control and signalling means; the transmitting and receiving device is encased in a single housing and comprises a transmitting and receiving unit which provides the continuous generation of a continuous linear frequency modulated probe signal, a primary data processing unit, and a computing device, and also additionally contains the following detachable components: a GPS/GLONASS receiver, a small-scale optoelectronic device, and a video capture module capable of receiving an analog signal from the small-scale optoelectronic device, digitizing and processing the analog video signal and transmitting same to the computing device; the primary data processing unit comprises an additional data output, and the computing device additionally comprises a data input, said output and input forming an audio channel, wherein the computing device is configured on a single-board computer and provides for the following functions: control, complete secondary processing of radar and optical data, generation of data packets relating to targets detected at distances of up to 20 km, and subsequent data exchange with the control and signalling means by means of a wired Ethernet interface, a TCP/IP network protocol or a wireless Wi-Fi channel; and the pedestal is designed to allow automatic azimuth and elevation scanning by the transmitter-receiver, and also to switch into a pre-heat mode at operating temperatures below minus 10°C. The housing of the transmitting and receiving device is sealed and is made of a heavy-duty aluminium alloy, the front wall of the housing being an antenna unit which is protected against external influences by a radiotransparent plate. Buffers are mounted on the corners of the housing, and two symmetrical compartments for holding the antennae of the navigation device are provided on opposite sides of the upper part of the housing, said compartments being closed from above by a hermetic radiotransparent cover. The radar station further comprises a tripod containing an aluminium stand and an orienting and levelling unit which is mounted on a flat platform of the stand such as to be fastenable by a handle. The upper part of the unit is provided with a spirit level for monitoring the horizontal position of the transmitting and receiving device. The radar station additionally comprises a bracket. A mains cable is provided inside a sealing housing with a cover for allowing access to the internal wiring.