Industry News

Home > NEWS > Industry News

Company News

Industry News

GPS navigation signal

source:Industry News release time:2022-11-08 Hits:     Popular:realtime gps tracker online

  G200(L) -Magnet GPS Tracker

  For C/A code, the navigation signal is composed of 25 frames of data, and each frame contains 1500 bits [2]. In addition, each frame can be divided into five groups of 300 bit sub frames. When the receiver captures the C/A code, it will take 6 seconds to capture a subframe, that is, it must take 30 seconds for a frame. Please note that only some more in-depth measurement operations can actually take 30 seconds to capture the complete framework; We will discuss it later. In fact, 30 seconds is only the average shortest time to capture a complete frame; The first positioning time (TTFF) of the system usually exceeds 30 seconds.

  In order to perform positioning operations, most receivers must update the information of the satellite ephemeris (Almanac) and ephemeris (Ephemeris). This information is contained in the signal data transmitted by the satellite, and each subframe also contains a dedicated information set. In general, we can identify the information contained in the subframe through its categories [2] [7]:

  Sub frame 1: Including clock correction, accuracy, and satellite operation

  Sub frame 2-3: contains accurate orbital parameters, which can calculate the exact position of the satellite

  Sub frames 4-5: contains rough satellite orbit data, timing correction, and operation information.

  The receiver must use the information of satellite ephemeris and ephemeris to perform positioning operation. Once the exact distance of each group of satellites is obtained, the high-order GPS receiver will return the position information through a simple triangulation algorithm. In fact, if the information of Pseudorange and satellite position can be integrated, the receiver can accurately identify its position.


Read recommendations:

fleet gps tracking wholesaler

cantrack g05

VSL100 GPS Speed Limiter, Speed Governor

GPS signal acquisition unit

The working principle and equipment composition of the GPS positioning management system.obd-II port

Last article:Composition and characteristics of GPS system

Next article:Mobile GPS data processing

Related Information

vehicle gps tracker webfleet solutions

2023-04-11

Magnetic gps tracker supplier

2023-04-23

GPS Tracking Manufacturing

2023-04-23

4G GPS Tracker for vehicles maker

2023-04-23

4G GPS Tracker for vehicles company

2023-04-23

Gps speed limiter manufacture

2023-04-23

portable gps tracker wholesaler

2023-03-16

Pet GPS Tracker distributors

2023-03-16

fleet gps tracking Processing

2023-04-23

pet gps tracker cat distributors

2023-03-16

C32Plus (9~90V E-bikes/Motorcycle/Car gps tracker)

2022-06-21

G03

2022-06-21

G500M-Mini GPS Tracker

2022-06-20

Mini Sized GPS Tracker PCBA

2022-06-17

G900LM-4G Car Mini GPS Tracker

2025-03-25

GPS performance indicators

2022-12-07

How to realize the function of GPS monitoring system?

2022-12-12

locator gps car tracker

2022-08-09

China Beidou Satellite Navigation System.obd11 gps tracker verizon manufacture

2023-03-11

Auto GPS information and mobile phone interconnection.gps tracker no monthly fee Factory

2023-05-18

Several Important Factors of Vehicle GPS Satellite navigation.personal gps tracker supplier

2023-06-16

The difference between GPS positioning and mobile positioning.obd2 gps tracker verizon manufacture

2023-08-03

The development of GPS system

2022-10-12

What should I do if the position of the car's GPS positioning system is incorrect?real-time gps trac

2023-09-19

GPS principle

2023-06-02

GPS navigation all-in-one machine.Pet GPS Tracker distributors

2023-07-18

How to do car GPS positioning in a car rental company.obd2 gps tracker verizon distributors

2023-03-16

Characteristics of GPS RTKLIB.fleet gps trackers wholesaler

2023-07-03

gps vehicle tracker.The role of Beidou and GPS satellite vehicle positioning systems in transportati

2023-10-14

What kind of gps tracker is easy to use?

2022-09-08