Distance measurement is a branch of research that involves the development and implementation of techniques for accurately measuring distances between objects or points in space. This research area encompasses a wide range of applications, including surveying, navigation, remote sensing, and scientific research. Some common methods of distance measurement include using GPS technology, laser rangefinders, sonar, and radar. Researchers in this field work to improve the accuracy, precision, and efficiency of distance measurement techniques, as well as explore new ways to measure distances in challenging or complex environments.