“ROSA-Е” low-flying target detection radar system

Designation
“Rosa” is designed for automatic detection and tracking of low-altitude aerial platforms and output of track information to an automated control system.
Composition:
- from 1 to 5 autonomous low-altitude target detection radar sets (LARS);
- remote control system;
- SPTA set.

Advantages:
- absence of moving parts due to use of a ring-shaped solid-state phased array;
- use of digital synthesis of the probing signal and digital processing of the received signal;
- effective detection of low-flying small-RCS aerial platforms;
- operator-free automatic operation;
- fully automatic functional check;
- high radar concealment and jamming immunity.

Performance characteristics:

Parameter	Value
Frequency range	X – band
Detection envelope: azimuth, deg range, m elevation, deg altitude, m	0-360 or within the assigned sector 300-50000 ≤ 30 0-3000
Detection range of a target with 1 m2 RCSmoving at 25 m height with at least 25 km/h range rate, for 0.5 detection probability, km	30
Target tracking characteristics: root mean square error of azimuth determination, deg RMSE of ranging, m number of targets tracked simultaneously number of tracks outputted simultaneously	≤ 0,45 ≤ 50 ≥ 30 ≥ 30
Reach distance for enemy ELINT, km	≤ 12,5
Activation time (including functional check), min	≤ 5
Information update rate, s	≤ 10
MTBF, hrs	500
MTTR, using SPTA parts, min	maximum 30
Service life till first overhaul, years (hrs)	10 (18 000)
Service life, years (hrs)	20 (36 000)