Don't think that if your heart rate falls below 60 that something is wrong. It is not uncommon while at rest, to have your HR dip below 60. Some people have rates that drop into the 30'3&40's while sleeping. Our heart rates will fluctuate which, for most, is a normal variable.on't think that if your heart rate falls below 60 that something is wrong. It is not uncommon while at rest, to have your HR dip below 60. Some people have rates that drop into the 30'3&40's while sleeping. Our heart rates will fluctuate which, for most, is a normal variable.
GPS Receivers. Any navigation solution provided by a GNSS Receiver is based on the computation of its distance to a set of satellites, by means of extracting the propagation time of the incoming signals traveling through space at the speed of light, according to the satellite and receiver local clocks.
Observation by sensor | Type of sensor | Resolution | Swath. Type of sensor. We have learned that sensors play an important role to receive information from the ground. Here, we introduce the various types of sensors. Sensor type is roughly divided into two: Optical sensor and Microwave sensor.