We discuss two methods to detect the presence and location of a person in an acoustically
small-scale room and compare the performances for a simulated person in distances …

Among so‐called active sensors that use self‐generated signals, sonar sensors are more
challenging to implement than lidar and radar due in part to their limited angular field of …

Active localization of a stationary target is one key issue in applications of bistatic sonar
based on bistatic range (BR) measurement. However, the complex underwater environment …

As there is a growing number of partially sighted people, many partially sighted aid systems,
which use the way of converting image to sound or vibration have been designed. Phonetic …

Microelectromechanical systems (MEMS) is the technology combining electrical
components with mechanical systems at a micro scale. The combination of these two …

Active sensors, such as radar, lidar and sonar, emit a signal into the environment and gather
information from its reflection. In contrast, passive sensors such as cameras and …