PrecISR radar sensing product

PrecISR is a family of airborne multi-mission surveillance radars from HENSOLDT, built around an X-band gallium nitride (GaN) active electronically scanned array (AESA) antenna and offering synthetic aperture radar (SAR) imaging. It is designed for compact installation on manned and unmanned aircraft that need radar surveillance of land, sea and air in all weather and by day and night.

The radar covers a wide set of modes. It produces SAR imagery with a resolution finer than 15 cm, inverse SAR (ISAR) and moving target indication (MTI) with a ground moving target indicator (GMTI) function, together with multi-domain modes for land, maritime and air targets. Modes can be interleaved, and a dedicated maritime mode for small targets applies multi-hypothesis detection. A space-time adaptive processor supports the detection of slow-moving ground and surface targets.

For an integrator, the key design points are as follows. The antenna offers two-dimensional electronic scanning in azimuth and elevation without moving parts, and the sensor combines the array, multi-channel radar electronics and integrated signal processing with a 360 degree gimbal in a single unit. The tracker follows more than 1,000 targets and can associate extra information such as AIS and ADS-B with its tracks. The radar is software defined, which leaves room to add functions, and it can support navigation through weather and ground mapping when satellite navigation is not available.

The family is scalable, with versions designated PrecISR 350, 700, 1000 and 1400, and a modular antenna lets the customer trade range and detection performance against size, weight and power. PrecISR 1000 and 1400 are all-in-one line replaceable units that include processing and tracking. Mounting options include gimbals under the fuselage and several fixed arrays distributed around the airframe, so that installation does not require penetrating the fuselage. The system is designed as ITAR-free.

Missions listed by the maker include maritime and coastal patrol, anti-submarine warfare, fishing control, marine traffic supervision, search and rescue, protection of offshore gas rigs, oil spill detection and disaster relief.