Navigation requires a sense of direction (‘compass’), which in mammals is thought to be provided by head-direction cells, neurons that discharge when the animal’s head points to a specific azimuth.

Calculating the traverse that represents a parcel can benefit significantly from something that is not properly taught: The use of azimuths. What is an azimuth? It is a horizontal angle of a line, ...

Direction finding is a method to determine the direction of a transmitted signal by using two antennas and by measuring the phase difference between the antennas, as shown in Figure 10-1. This process ...