SNR

The signal to noise ratio (SNR) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined as the ratio of signal power to the noise power.

class SNR(snr, reference, channel=None)

Bases: NoiseLevel

Signal-to-noise ratio configuration.

Parameters:

• snr (float) – Expected signal-to-noise ratio.

• reference (Device | Transmitter | Receiver) – Reference of the noise level, i.e. with which power or energy was the signal generated.

• channel (Channel | None) – Channel instance over which the signal was propagated. For channel models that consider propagation losses the noise power is scaled accordingly.

classmethod Deserialize(process)

Deserialize an object’s state.

Objects cannot be deserialized directly, instead a Factory must be instructed to carry out the deserialization process.

Parameters:

process (DeserializationProcess) – The current stage of the deserialization process. This object is generated by the Factory and provides an interface to deserialization methods supporting multiple backends.

Return type:

SNR

Returns:

The deserialized object.

get_power()

Power of the noise level.

Returns: Power in Watt.

Return type:

float

serialize(process)

Serialize this object’s state.

Objects cannot be serialized directly, instead a Factory must be instructed to carry out the serialization process.

Parameters:

process (SerializationProcess) – The current stage of the serialization process. This object is generated by the Factory and provides an interface to serialization methods supporting multiple backends.

Return type:

None

property level: float

Linear signal power to noise power ratio.

Raises:

ValueError – If the ratio negative.

property reference: Device | Transmitter | Receiver

Reference to which the noise level is scaled.

Can be either a device, transmitter or receiver. If assigned to a device,

property snr: float

Linear signal power to noise power ratio.

Raises:

ValueError – If the ratio negative.

property title: str

Title of the scalar dimension.

Displayed in plots and tables during simulation runtime.