User Equipment Part

User equipment part is the GPS signal receiver. Its main function is the ability to capture under test satellites which are selected by a certain cut-off corner and track the operation of these satellites. When the receiver captures tracked satellite signals, the rate of change of pseudo-distance and distances between the receiving antenna and the satellite can be measured. And the satellite data as orbital parameters can also be demodulated. Based on these data, the micro-processing computer in receiver can be carried out position calculation by targeting position calculation measure to calculate the user's geographic latitude and longitude, altitude, speed, time, and other information. Receiver hardware and machine software, and GPS data post-processing package compose the whole GPS user equipment. The structure of GPS receiver is divided into two parts as antenna unit and receiver unit. Receivers generally use the inside and outside machine two kinds of DC power. Setting the inside machine power is intended to not to interrupt continuous observation when replacing the external power supply. Using outside machines power supply, inside power supply is time automatically charging the battery. After the shutdown, the inside machine battery provide power for RAM memory to prevent data loss. At present, the volume of various types of receivers become smaller and smaller and the weight is also becoming lighter and lighter, easy to use for field observations.

China SIM Card, SEO Service, SEO Company, Seach Engine Optimization