CSS.h File Reference

#include <ctype.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "AudioTools.h"
#include "PacketStream.h"
#include "ReedSolomon.h"

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Classes
struct	tinymodem::CSSConfig
	Configuration of the chirp spread spectrum modem (CSSEncoder, CSSDecoder), which works like LoRa in the audio band: each symbol is a linear chirp over the bandwidth, which starts at one of N = 2^SF frequencies and carries SF bits (SF = spreading factor). The signal can be received far below the noise level and is robust against frequency offsets, different clocks and echoes. It is not compatible with LoRa radios. More...
class	tinymodem::CSSFrame
	Frame format of the chirp spread spectrum modem: the bytes of the header code word (length and parity) and of the payload code word (data, CRC-16 and parity) are sent as SF bits per symbol, most significant bit first. The symbol value is the inverse Gray code of the bits, so that a detection in the neighboring FFT bin causes only 1 wrong bit. More...

Namespaces
namespace	tinymodem
	TinyModem: software audio modems and packets with error correction.