Australian search and surveillance provider Sentient Vision Systems has announced the first flight of its ViDAR pod system, the VMS-5 (ViDAR Maritime Surveillance) Day/Night Optical Radar pod.
The VMS-5 Day/Night pod is the first of a range of ViDAR surveillance pods configured for different missions and aircraft types, and will be available for customer delivery during the first half of 2021.
ViDAR (Visual Detection and Ranging) is an optical radar that can autonomously detect small objects on the sea surface over very wide areas by day and night in conditions up to Sea State 6.
According to the company, demand for support of a wide range of missions is growing globally, including drug interdiction, anti-piracy and illegal fishing detection.
Since 2016, Sentient has supplied ViDAR as a software-based solution to operators who’ve integrated it aboard manned and unmanned, fixed-wing and rotary wing platforms.
The company is reportedly now stepping up to become an Original Equipment Manufacturer (OEM) offering ViDAR as a complete solution, including sensors and processors, for operators around the world.
“ViDAR offers customers much better wide-area situational awareness at a lower cost than anything else available,” Dr Paul Boxer, Sentient Managing Director, said. “This is especially the case in Search and Rescue (SAR) operations.”
“By building our own integrated ViDAR pods we’re able to offer customers an enhanced surveillance capability backed up by dedicated support. Importantly, we control the quality and reliability of the ViDAR installation to deliver a more consistent, well-engineered, end-to- end integration and training process.”
The ViDAR VMS-5 pod is equipped with multiple fixed, high-resolution cameras with a combined Field of View (FoV) of 180 degrees. From an altitude of 1500ft at a speed of about 90kt, they scan a surface swathe of 3.2 nautical miles wide to find targets as small as a person in the water. If the mission objective is to find a suspicious boat with a low radar cross-section then the ViDAR swath can be increased to over 25nm from 1500 metres.
If the target is within its field of view, ViDAR will spot it, even in Sea State 6 – "increasing probability of detection to over 96 per cent on first pass." The ViDAR software provides a thumbnail to the operator’s mission system showing the target and its location, enabling the operator to slew the platform’s primary sensor onto it for further inspection. The pods will be offered initially with two sensor types: a 60 Megapixel Electro-Optic (E/O) installation and a HD Infrared (IR) sensor for night and bad weather operations. Depending on the application these can also be equipped with a camera turret.
“One size definitely does not fit all,” said Dr Boxer. “Which is why we’re developing a range of ViDAR pods and installations for different missions depending on the speed and altitude of the aircraft and whether operations call for day-only or day-night capability.
“A new generation of higher-definition sensors and enhanced processors becomes available roughly every 18 months, so the ViDAR pods are designed to accommodate new payloads with minimal re-design."
The initial VMS-5 pod design is being flight tested and demonstrated on a Cessna 172, with pod designs being developed for larger, faster aircraft such as the Viking Twin Otter, King Air 300, Boeing 737 based maritime patrol aircraft, helicopters such as the AS365, AW139, AW189, AW101 and a range of medium-altitude long endurance (MALE) UAVs.