lora

Documentation

Overview

Package lora contains LoRa modulation utilities.

Index

• func AdjustedRSSI(channelRSSI, snr float32) float32
• func GetAdjustedReceivedAt(up UplinkMessage) *pbtypes.Timestamp
• type UplinkMessage

Functions

func AdjustedRSSI

func AdjustedRSSI(channelRSSI, snr float32) float32

AdjustedRSSI returns the LoRa RSSI: the channel RSSI adjusted for SNR. Below -5 dB, the SNR is added to the channel RSSI. Between -5 dB and 10 dB, the SNR is scaled to 0 and added to the channel RSSI.

func GetAdjustedReceivedAt

func GetAdjustedReceivedAt(up UplinkMessage) *pbtypes.Timestamp

GetAdjustedReceivedAt tries to improve the ReceivedAt timestamp using the message's GpsTime and metadatas' ReceivedAt.

Types

type UplinkMessage

type UplinkMessage interface {
	GetRxMetadata() []*ttnpb.RxMetadata
	GetReceivedAt() *pbtypes.Timestamp
}

UplinkMessage describes a message that holds RxMetadata and timestamp.