torchsig.transforms.signal_transforms.QuantizeSignalTransform¶

class torchsig.transforms.signal_transforms.QuantizeSignalTransform(num_bits: Tuple[int, int] = (6, 18), ref_level_adjustment_db: Tuple[float, float] = (-10, 3), **kwargs)[source]¶

Bases: SignalTransform

SignalTransform that models Quantization in DAC.

num_bits¶

Range of number of bits in DAC to simulate. Defaults 4 bits to 18 bits.

Type:: float

ref_level_adjustment_db¶

Reference level (in dB) to increase or decrease relative to full scale. Defaults to -10 dB to +3 dB.

Type:: float

Methods

`add_parent`	Add parent Seedable object and set up RNGs accordingly
`get_distribution`
`get_second_seed`	Gets second seed, usually used to seed both torch and numpy generators with slightly different seeds
`seed`	Seed number generators with given seed.
`setup_rngs`	Initialize torch and numpy number generators, and update its children.
`update`	Updates bookkeeping to transforms in Signal's SignalMetadata and checks signal valididty.
`update_from_parent`	Update numpy and torch number generators with parent seed

__init__(num_bits: Tuple[int, int] = (6, 18), ref_level_adjustment_db: Tuple[float, float] = (-10, 3), **kwargs)[source]¶: Transform initialization as Seedable.

__call__(signal: Signal) → Signal[source]¶

Performs transforms.

Parameters:: signal (Signal) – Signal to be transformed.
Raises:: NotImplementedError – Inherited classes must override this method.
Returns:: Transformed Signal.
Return type:: Signal

__repr__() → str¶

Transform string representation. Should be able to recreate class from this string.

Returns:: Transform representation.
Return type:: str

__str__() → str¶: Return str(self).

add_parent(parent) → None¶: Add parent Seedable object and set up RNGs accordingly

get_second_seed(seed: int) → int¶

Gets second seed, usually used to seed both torch and numpy generators with slightly different seeds

Parameters:: seed (int) – Seed to use.
Returns:: New seed.
Return type:: int

seed(seed: int) → None¶

Seed number generators with given seed.

Parameters:: seed (int) – Seed to use.

setup_rngs() → None¶: Initialize torch and numpy number generators, and update its children.

update(signal: Signal) → None¶

Updates bookkeeping to transforms in Signal’s SignalMetadata and checks signal valididty. Inherited classes should always call self.update() after performing transform operation (inside __call__).

Parameters:: signal (Signal) – Transformed signal.

update_from_parent() → None¶: Update numpy and torch number generators with parent seed