1 Overview
This radar is mainly used for the detection of various aircraft. It is composed of a antenna feed subsystem, a transceiver subsystem, a servo subsystem, an integrated processing subsystem, and a terminal subsystem. It includes two major parts: the antenna unit and the rear-end processing unit. The antenna unit mainly consists of the antenna frame, array antenna, correction network, TR component, digital receiving unit component, DBF component, high-precision clock component, turntable (including the bus bar, driver, encoder, motor, code disk and other equipment), environmental control system, and the supporting GPS positioning/longitude-determination system and other equipment; the rear-end processing unit mainly consists of one high-performance computing platform and one terminal computer.
1.1 Functional Requirements
(1) Capable of searching, capturing, and tracking surrounding aircraft;
(2) Capable of measuring parameters such as target azimuth, pitch, distance, and speed;
(3) Capable of providing reliable target information for other devices;
(4) Capable of remote control;
(5) Capable of information network entry.
1.2 Main Technical Requirements for Warfare
1.2.1 Main Tactical Requirements
Frequency range: S-band (2.85GHz - 3GHz);
Technical system: scanning three-coordinate, pitch all-digital DBF system;
Measurement dimensions: distance, azimuth, elevation (height), speed;
Detection power: ≥50km (RCS 1㎡)
≥20km (RCS 0.01㎡)
Minimum detection distance: 75m
Coverage range:
Pitch coverage: 0° - 45°;
Azimuth coverage: 360°;
Height coverage: 20km;
Target flight speed range that can be detected: 10m/s - 1200m/s;
Resolution
Azimuth resolution: ≤4.3° (3dB beam width);
Pitch resolution: ≤4.4° (3dB beam width);
Distance resolution: ≤45m;
Detection accuracy:
Distance accuracy: 20m (root mean square);
Azimuth accuracy: 0.3° (root mean square);
Pitch accuracy: 0.3° (root mean square);
Data rate:
Search: 30 revolutions/minute, 15 revolutions/minute;
Tracking: ≥10Hz (interpolation).
Target processing capacity: ≥2000 batches
Peak transmission power: ≥4.5kW;
Overall power consumption: 4kW;
BIT: The equipment has self-checking function and status information is automatically fed back to the display and control subsystem.
Anti-interference measures (ECCM):
Multiple frequency selectable;
Clutter map;
Waveform parameters can be set;
Radar trajectory memory extrapolation.
1.2.2 External Interfaces
Data interface
Uses IP protocol.
Time synchronization interface
GPS/Beidou timing, longitude-determination.