Tech Articles

Advanced Navigation’s light detection altimetry and velocimetry (LiDAV) system sets a new benchmark for laser-based distance/range and velocity measurement. This patent pending technology delivers a navigational sensor capable of measuring distance and velocity with extreme accuracy and with less hardware than any other system with similar characteristics.

As the use of autonomous systems continues to grow, the importance of their ease of integration cannot be overstated. This refers to how seamlessly a system can be integrated into a vehicle or platform, both physically and electronically.

Oil rigs, those formidable structures used for extracting crude oil and natural gas from beneath the ocean floor, face an intriguing dilemma when they reach the end of their productive life. In accordance with international law, governments typically require retired oil rigs be treated as maritime waste and removed. However, there is a growing interest in repurposing them as artificial reefs.

In October 2023, Advanced Navigation deployed its micro hovering autonomous underwater vehicle (AUV) Hydrus off Rottnest Island, Western Australia. The purpose of the mission was to capture high-quality still imagery and 4K video, for the purposes of benthic inspection and 3D photogrammetry reconstruction.

As part of Advanced Navigation’s inaugural Student Grant Program designed to motivate and financially support high-achieving engineering students, we asked our applicants how they envision a sustainable future enabled by autonomous systems. A question of great magnitude, it was met with some of the most eye-opening, creativity-laden responses from young minds across the world.

The gyroscope most likely began existence as a simple children’s toy – a “spinning top”. It is difficult to speculate who, when and where first discovered this seemingly gravity defying wonder, however, it has endured the ages and has ended up becoming an intrinsic part of human navigation.

Dead-reckoning is the term given to approximate one’s current position based on estimated movements from a previously known location. That is, having your starting point coordinates, then estimating heading (direction) and distance travelled between each change in direction, using velocity and time, to calculate where you are now.

The genealogy of lidar (light detection and ranging) stems from sonar (sonic navigation and ranging) and radar (radio detection and ranging) technologies. Sonar and radar use acoustic (sound) and electromagnetic waves in the radio or microwave frequency spectrum, respectively. Lidar technology uses electromagnetic radiation in the infra-red and visible light spectrum, which are much higher frequencies than that of radio or microwaves.

Traditional techniques for crop growing and other agriculture activities have been a mainstay for literally centuries, however, technology has caught up in a big way that is offering farmers many new and ingenious ways to improve life on the land.

There are several techniques for using USBL that are suited to different applications, each of which provides different advantages and results. USBL-squared (USBL2) is unique to Advanced Navigation. This article briefly explains each technique and the benefits of USBL-squared to help untangle any confusion on the subject.