To uniquely determine the location on a two-dimensional plane, one needs alleast ___________independent distance measurements

Related MCQs

• How the leader node maintains and migrates the collaborative processing group. Arrange the following steps in correct order a: sensors are selected to acquire new measurements using the sensor selection algorithm b: after the leader is elected, it initializes a belief state as uniform disk centered at its own location c: as the target moves, the sensors that did not previously detect may begin detecting
• Each sensor in a sensor network takes___________ measurements of physical phenomena such as heat, sound, light ,pressure or motion
• The error in localization, measured as mean squared error , generally ___________as more sensor measurements are incorporated
• A typical GPS receivers achieve 15 meters accuracy with 95% precision. This means that in 95% of all measurements you stay in the radius of 15 meters, whereas in the remaining 5% you have _____ errors.
• Node gather enough anchor points and measurements, they compute their own locations. Once they have localized, they also declare themselves as an anchors. In this way, sensor nodes without enough anchors get a chance to localize. This approach is called as ____________ localization.
• From 20 localization measurements, 19 were inside a radius of 15 meters around the true position, while 1 was outside. This results in an accuracy of 15 meters with a precision of __________.
• From 20 localization measurements, 18 were inside a radius of 15 meters around the true position, while 2 was outside. This results in an accuracy of 15 meters with a precision of __________.
• They can even use other services such as location tracking using the __.
• What is the measurement used to indicate the amount of interference to a particular location?
• Pre-deployment Schemes provide sensor nodes with their location information _________ them in the environment.