truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

Gps speed limiter.GPS signal

source:truck tracking webfleet solutions release time:2023-11-14 Hits:     Popular:realtime gps tracker online

  

  GPS satellites broadcast radio frequency signals at two carrier frequencies; L1 (1575.42 MHz) and L2 (1227.60 MHz). The beams that can be used by the general public are encoded using C/A (rough/acquisition) codes, while beams used solely by the US military are encoded using P (precise) codes.

  The C/A code includes the identification codes and navigation messages of each satellite. The L1 signal from the GPS satellite is phase modulated using C/A code. C/A code is a digital signal in which 0 and 1 are encoded by 1023 consecutive digital pulse patterns. The navigation message consists of 25 frames, each with 5 subframes of 300 bits. Therefore, each frame has 1500 bits (0 and 1). The data length of each bit is 20 milliseconds (i.e., the total pulse width of a C/A signal of one bit is 20 milliseconds).

  The orbital data of each satellite is called an ephemeris. This data is used to generate the precise position of the satellite, which is required for the GPS receiver to calculate position information. The orbital data of all satellites is called the almanac. It includes rough orbit and status information of all satellites in the network. This data is used to locate available satellites for the GPS receiver so that it can find their current time and position on Earth.


Read recommendations:

fleet gps trackers wholesale

4G GPS Tracker for vehicles

G03

GPS helps you avoid the electronic eye

GPS vehicle tracking and dispatching function

Last article:mini gps tracker.Introduction to the main functions of enterprise users choosing car GPS satellite p

Next article:mini gps tracker.GPS positioning

Related Information

fleet gps trackers

2023-04-11

gps tracker fur auto webfleet solutions

2023-03-16

4G GPS Tracker price

2023-04-23

car gps tracker distributors

2023-04-23

car gps tracker custom

2023-04-23

car gps tracker Vendor

2023-04-23

obd2 gps tracker verizon wholesale

2023-03-16

real-time gps tracking distributors

2023-04-23

Dog gps tracker

2023-04-23

mini gps tracker sales

2023-04-11

TK100B- Accurate Pro version GT06/TK100

2023-10-06

GF70L-Solar Magnetic Asset GPS Tracker

2023-10-07

G200NY -Cow/Camel GPS Tracker

2022-06-21

YG119- Hunting Dog GPS tracker

2023-10-07

NB20 -4G Bluetooth Smart Pet Tracker

2022-06-21

How to prevent the car positioning system from being destroyed.plug & play Obd gps tracker Solut

2023-05-09

Features of GPS

2023-02-17

ODM GPS Solution for Smart Wheelchair Project Launched!

2022-06-18

The GPS system consists of three parts

2022-12-06

Choice becomes difficult? A variety of high-performance GPS are recommended

2022-08-10

What should be considered in addition to the positioning and navigation performance when choosing GP

2022-10-28

Handheld GPS navigation products will enter a period of rapid development.pet gps tracker cat wholes

2023-05-27

GPS receiver

2023-02-07

Introduction to the physical signal of GPS

2022-08-26

Gps speed limiter.100 yuan GPS locator opens a new chapter in electric vehicle anti-theft

2023-10-18

The principle of GPS indoor positioning technology

2022-08-12

Car GPS reference labeling.GPS Tracker for vehicles manufacturer

2023-05-13

What is the difference between vehicle-mounted GPS locator and vehicle-mounted GPS?Fleet management

2023-03-23

Tongda GPS positioning monitoring system technology for you

2022-08-24

Solar GPS positioning tracker solve worries

2023-02-23