Automatic Gain Control#
- class AutomaticGainControl(agc_type=GainControlType.MAX_AMPLITUDE, backoff=1.0, rescale_quantization=False)[source]#
Bases:
Serializable,GainControlBaseAnalog-to-digital conversion automatic gain control modeling.
- Parameters:
agc_type (GainControlType, optional) – Type of amplitude gain control at ADC input. Default is GainControlType.MAX_AMPLITUDE.
backoff (float, optional) – this is the ratio between maximum amplitude and the rms value or maximum of input signal, depending on AGC type. Default value is 1.0.
rescale_quantization (bool, optional) – If enabled, the quantized signal is rescaled to the original signal range before gain adjustment. Disabled by default.
- estimate_gain(input_signal)[source]#
Estimate the gain required to adjust the signal to the ADC input range.
Returns: Linear gain to be applied to the input_signal’s Voltage samples.
- property agc_type: GainControlType#
Automatic Gain Control
The AGC may have the following types of gain control, which wil specify the quantizer range: - GainControlType.NONE: no gain control, range must be specified - GainControlType.MAX_AMPLITUDE: the range is given by the maximum amplitude of the - GainControlType.RMS_AMPLITUDE: the range is given by the rms value plus a given backoff Note the for complex numbers, amplitude is calculated for both real and imaginary parts separately, and the greatest value is considered.
- Return type:
- property backoff: float#
Quantizer backoff in linear scale
This quantity determines the ratio between the maximum quantization level and the signal rms value :returns: the backoff in linear scale :rtype: float
- yaml_tag: Optional[str] = 'AutomaticGainControl'#
YAML serialization tag.