Spreading Codes

Functions
const u8 *	ca_code (u8 prn)
s8	get_chip (u8 *code, u32 chip_num)

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Detailed Description

Pesudo-random numbers (PRNs) used in the Direct-Sequence Spread Spectrum modulation of GNSS signals.

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Function Documentation

const u8* ca_code

(

u8

prn

)

Returns the C/A code PRN corresponding to a given PRN number. The 1023 chip PRN is packed one chip per bit into an array of 128 8-bit words. The final 1024th bit is zero for all PRNs.

Parameters:

prn	PRN number.

Returns:

A pointer to an array containing the C/A code PRN corresponding to the PRN number prn, packed one bit per chip.

Definition at line 33 of file prns.c.

s8 get_chip	(	u8 *	code,
		u32	chip_num
	)		[inline]

Definition at line 37 of file prns.c.