torchsig.utils.dsp¶

Digital Signal Processing (DSP) Utils

Functions

`bandwidth_from_lower_upper_freq`	Calculates bandwidth from lower frequency and upper frequency
`center_freq_from_lower_upper_freq`	Calculates center frequency from lower frequency and upper frequency
`compute_spectrogram`	Computes two-dimensional spectrogram values in dB.
`convolve`	Wrapper function to implement convolution()
`design_half_band_filter`	Designs half band filter weights for dyadic resampling
`estimate_filter_length`	Estimates FIR filter length
`estimate_tone_bandwidth`	Estimate the bandwidth of a tone
`frequency_shift`	Performs a frequency shift
`gaussian_taps`	Designs Gaussian filter weights
`interpolate_power_of_2_resampler`	Applies power of 2 resampling
`is_even`	Is the number even?
`is_multiple_of_4`	Is the number a multiple of 4?
`is_odd`	Is the number odd?
`low_pass`	Low-pass filter design
`low_pass_iterative_design`
`lower_freq_from_center_freq_bandwidth`	Calculates the lower frequency from center frequency and bandwidth
`multistage_polyphase_decimator`	Multi-stage polyphase filterbank-based decimation
`multistage_polyphase_interpolator`	Multi-stage polyphase filterbank-based interpolation
`multistage_polyphase_resampler`	Multi-stage polyphase filterbank-based resampling.
`noise_generator`	Generates additive complex noise of specified power and type.
`pad_head_tail_to_length`	Zero pads the head and tail of a signal
`polyphase_decimator`	Integer-rate polyphase filterbank-based decimation
`polyphase_fractional_resampler`	Fractional rate polyphase resampler
`polyphase_integer_interpolator`	Integer-rate polyphase filterbank-based interpolation
`prototype_polyphase_filter`	Designs the prototype filter for a polyphase filter bank
`prototype_polyphase_filter_decimation`	Designs polyphase filterbank weights for decimation
`prototype_polyphase_filter_interpolation`	Designs polyphase filterbank weights for interpolation
`read_pickle`
`slice_head_tail_to_length`	Slices the head and tail of a signal
`slice_tail_to_length`	Slices the tail of a signal
`srrc_taps`	Designs square-root raised cosine (SRRC) pulse shaping filter
`upconversion_anti_aliasing_filter`	Applies a BPF to avoid aliasing
`upper_freq_from_center_freq_bandwidth`	Calculates upper frequency from center frequency and bandwidth
`upsample`	Upsamples a signal
`write_pickle`