The latest Ukrainian mobile radar systems for reconnaissance, surveillance and information collection “Tayra” and “Harza”

Ukrainian State Enterprise “Specialized Foreign Trade Firm “PROGRESS” (SE SFTF “PROGRESS”) promotes the latest mobile radar systems for reconnaissance, surveillance and information collection” Tayra “and” Harza “.

The alternative designation of the systems is – mobile  Perimeter Security Surveillance Radar (PSSR).

The systems have been developed by the “PROGRESS” company, in a collaboration with the Ukrainian Academy of Sciences’ Institute of Radio Astronomy.

These systems can be useful for the customers in the Middle East, North Africa and Sahel region, especially given the large area of ​​desert territory, the length of the borders.  At these conditions the systems allow to protect and ensure the security of remote posts and garrisons (Sahara, Sahel), critical infrastructure in remote areas (mining industry, oil and gas industry), automated border protection.

At the same time, in the light of the world spread of the UAVs use for attacks (both in traditional wars and by members of terrorist groups, smugglers etc.), an important feature of the complexes is the detection of various types of UAVs, including small low-flying UAVs.

More about these systems.

The main difference between the two systems is the use of different types of mobile platforms (fully autonomous  – “Tayra” or trailed “Harza”), on which the system is mounted and this in order to perform tasks that are traditionally faced by civilian services or military units. This involves reconnaissance, protection of important installations, strategic infrastructure or detection of small unmanned aerial vehicles.

Radar systems for reconnaissance, surveillance and information collection “Harza” and “Tayra” provide all weather, 24-hour security surveillance of a facility’s perimeter, territory and approach routes by scanning a full 360-degree sector or a specific sector of interest , detection of moving and slow moving  targets, on land or at sea, detection of small-size (low-RCS), low-altitude flying targets/threats, finding out data of detected targets, including azimuth, range, radar cross section (RCS), radial velocity, and Doppler spectrum width.

 

The systems provide the operational capabilities for the following:

– automatic detection and classification of moving targets, including small-size (low-Radar Cross-Section) flying targets while flying at 10-15 to 600 m altitudes, using radar surveillance;

– automatic slew-to-cue of  electron-optic (EO) camera sensors based on radar track;

– automatic target tracking;

– display of target icons and radar fields on the surveillance area map (digital map);

– visual/audio alarm signal generation if an incoming target|threat is detected;

– archive search by date, target class or operator’s comment.

 

The results of the participation of these systems in international tenders prove that they an effective, adequate response to the most challenging threat posed by unmanned aircraft that are designed to deal with a wide variety of tasks ranging from reconnaissance, surveillance, and intelligence gathering to surface-to-ground attacks.

A drone threat cannot be neutralized or destroyed before it is detected and its position is accurately localized.   But this, as it turns out, isn’t so easy to achieve.

The Harza and Tayra technology team have been able to handle all the challenges pretty well. Having completed the required trials and evaluation cycle, the “Harza” PSSR has already found markets both in and outside of Ukraine, thus proving its high competitive ability.The larger the Radar cross-section (RCS) of a given target, the easier it is for a radar to detect the target. Relatively large aircraft and UAVs have larger RCS and hence are more visible to a radar. But the threat detection problem is seriously complicated where the threats are modern, low-RCS combat UAVs and especially quadcopter drones built with an extensive use of plastic materials. Furthermore, targets like e.g. quadcopter drones are designed such as to fly at low speeds, making their detection even more challenging.

The new radars are effective against targets in the air, on the ground, and at sea. In particular, it can detect a small, 0.01 sq.m. RCS drone from 7 km, a human being from 18 km, and a vehicle-sized target from 30 km away while being able at the same time to automatically track up to 200 targets simultaneously.

 

In addition to the radar channel, the operator can use optical and thermal imaging devices to monitor the detected targets – including in automatic mode.

The software allows the operator to coordinate the work of different channels for priority targets, which were first detected by radar.

To determine the altitude of air targets, the radar can optionally be equipped with an additional module.

The radar output data can be integrated with geographic information system (GIS) data to allow all weather, 24-hour security surveillance of a facility’s perimeter, territory, and approach routes.

One of the advantages of the perimeter security radar system in the Harza version is its compact design. The system is mounted on a single-axle car trailer, to facilitate fast, low visibility movement.

If needed, the mobile complex can be easily installed as stationary without any changes in its characteristicsThe system, among other things, is designed to protect strategic objects (such as headquarters, communications, warehouses and bases for weapons and military equipment, power plants) from attack by sabotage groups and drones. The Harza system takes just 10 minutes to go from stowed to operational readiness configuration.

In its turn, “Tayra” system is mounted on cars or armored vehicles 4×4, equipped with outriggers. The type of armored vehicle is determined by the customer. “Tayra” can be considered as a reconnaissance vehicle to perform the full range of tasks of combat support for the needs of ground forces or special forces.

 

Specifications:

Radar
Type	Doppler, pulse
Operational frequency, Hhz	7,9 +/- 0,1
The range of moving targets detection with a probability of more than 90% at antenna rotation rate of 50°/sec., km
UAV (typical RCS 0,01m²)	˃ 7
man (typical RCS 0,5 m²	˃ 18
Car, boat, plane (typical RCS 1 m²	˃ 25
Target elevation coverage, deg.	20 (-5 …. +15)
Azimuth coverage, deg.	360
Azimuth resolution, deg.	2
Accuracy of azimuth measurement, deg.	1
Accuracy of range rate, m/sec	0,1-1
Minimum measured rate, m/sec	0,2-2
Maximum antenna scan rate, °/sec.	90
Coordinate system	WGS-84, Radar station, Azimuth/Range
Ability to simultaneously detect and track objects/targets	˃ 200
Operating temperature range, °C	-40…..+60
The range of targets detection by optic-electronic channel at day/night conditions, km
man	˃ 7/5,5
car, boat	˃ 8/7
General
personnel	2
readiness time operational/transportation, min.	Not more 10/10
Weight depending on configuration, kg	800…..1500 (+/-5%)
Height of the radar component from platform, m	5
Power supply
AC, V/Hz	220/50
DC, V	24
Resistance to wind overload while mounted antenna, m/sec	40
Detection and monitoring of targets	Automatic, manual

 

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