pub fn sensitivity_dbm(
link: LinkSettings,
noise_figure_db: Decibels,
) -> DecibelsExpand description
Returns the weakest signal a receiver can demodulate on a link, in dBm.
Sensitivity is the noise floor of the channel, raised by the noise figure of the receiver and lowered by the demodulator SNR. How closely that tracks the datasheets is in the module documentation.
§Arguments
link- the link settings, whose spreading factor and bandwidth set the floor.noise_figure_db- the noise figure of the receiver, such asRADIO_NOISE_FIGURE_DB.
§Returns
The sensitivity in dBm.
§Examples
use pamoja_lora::budget::{sensitivity_dbm, RADIO_NOISE_FIGURE_DB};
use pamoja_lora::LinkSettings;
let fastest = sensitivity_dbm(LinkSettings::new(7, 125_000), RADIO_NOISE_FIGURE_DB);
let furthest = sensitivity_dbm(LinkSettings::new(12, 125_000), RADIO_NOISE_FIGURE_DB);
assert_eq!(fastest.to_string(), "-124.53");
assert_eq!(furthest.to_string(), "-137.03");