Howtosignalprocessing
- What is code phase in GPS?
- What are the 2 types of code of GPS?
- What are the three basic GPS codes?
- What code is used for GPS receivers?
What is code phase in GPS?
Code phase is one processing technique that gathers data via a C/A (coarse acquisition) code receiver, which uses the information contained in the satellite signals (aka the pseudo-random code) to calculate positions. After differential correction, this processing technique results in 1-5 meter accuracy.
What are the 2 types of code of GPS?
GPS Signal Structure
The main GPS carrier signal L1, at 1575.42MHz, is modulated by two codes: the coarse/acquisition (C/A) code also known as civilian code and the precision/secure (P/Y) code, reserved by cryptographic techniques to military and authorized civilian users.
What are the three basic GPS codes?
Indeed most of the applications in the world nowadays are based on the signals transmitted at this frequency. Three signals are transmitted at the moment by GPS in L1: C/A Code, P(Y) Code,M-Code and the new L1C signal, which is in the process of being fielded as L2C and L5.
What code is used for GPS receivers?
Positioning, one of the primary objectives of GPS, is really the office of the P-Code, the C/A Code and some others that are newer than these legacy codes. The P code is the Precise code, The C/A code is the the Civilian Access code. They're modulated onto carrier waves.
