Spacecraft navigation explained with radio tracking, optical systems, and autonomous methods that enable deep space ...

Alternatively, data from all transducers can be used while limiting the focal depth, allowing more transmit-receive pulses to ...

The positioning, navigation, and timing (PNT) information is fundamental to modern information systems. Over the years, people have invented many navigation systems to get PNT information, whereas ...

Accurate smartphone positioning in dense urban environments remains challenging due to signal blockage, multipath effects, and unreliable satellite visibility. This study presents a new positioning ...

The Indus Doppler Flow Velocity System is a high-frequency, real-time pulsed Doppler measurement tool with built-in data processing software intended to assess small animals' cardiovascular health.

The Pakistan Airports Authority (PPA) has successfully completed the commissioning of a state-of-the-art Doppler VHF ...

Scientists discovered 3I/ATLAS on July 1, 2025, making it the third interstellar object ever detected passing through our ...

Recent analysis of Cassini spacecraft data shows Saturn’s moon Titan likely lacks a global subsurface ocean, revealing a high ...

An increasing number of rheumatologists have access to ultrasound equipment that provide both color and power Doppler modes, which can be used to investigate musculoskeletal and vascular pathologies.

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

Doppler ultrasound is thought to be more sensitive than gray-scale ultrasound in the detection of synovitis, because Doppler ultrasound can also detect perfusion and blood flow. The sensitivity of ...

Interior Secretary Doug Burgum leveled the Trump administration’s latest broadside at the struggling U.S. offshore wind ...