Rate conversion & resampling¶

Polyphase resampling, rate converters and halfband decimators.

Python module doppler.resample. Area: Rate conversion.

Classes and functions¶

Name	Kind	API	Guide	Gallery	Example	Design
`CIC`	class	CIC		CIC Decimation Filter Arbitrary-Rate Symbol Recovery	cic_demo	API taxonomy: the DSP building-block hierarchy and its naming axis Design — pure-functional acquisition kernel (elastic fleet) Quantization Design +2 more
`ciccompmf`	function	ciccompmf		RateConverter — Automatic Cascade Selection
`Farrow`	class	Farrow		Farrow Interpolator Arbitrary-Rate Symbol Recovery Symbol Timing Recovery	farrow_demo	Continuously Variable Resampler API taxonomy: the DSP building-block hierarchy and its naming axis
`HalfbandDecimator`	class	HalfbandDecimator			hbdecim_q15_demo	Continuously Variable Resampler API taxonomy: the DSP building-block hierarchy and its naming axis
`HalfbandDecimatorDp`	constant	HalfbandDecimatorDp
`HalfbandDecimatorQ15`	class	HalfbandDecimatorQ15	Getting Started with Fixed-Point Arithmetic	HalfbandDecimatorQ15 — Fixed-Point Halfband Decimator	hbdecim_q15_demo	API taxonomy: the DSP building-block hierarchy and its naming axis
`HalfbandDecimatorR2C`	constant	HalfbandDecimatorR2C
`kaiser_beta`	function	kaiser_beta				Measurement Suite — single-tone ADC / spectral metrics
`kaiser_num_taps`	function	kaiser_num_taps
`MatchedRateConverter`	class			Arbitrary-Rate Symbol Recovery	ratesync_demo	Waveform amplitude & composition
`RateConverter`	class	RateConverter		RateConverter — Automatic Cascade Selection DsssReceiver — the Composed Continuous DSSS Receiver	rate_converter_demo	CIC Decimator — the fixed-point input budget Continuously Variable Resampler API taxonomy: the DSP building-block hierarchy and its naming axis +8 more
`Resampler`	class	Resampler		RateConverter — Automatic Cascade Selection Arbitrary-Rate Symbol Recovery Doppler Channel — Clock Doppler as a Propagation Impairment		CIC Decimator — the fixed-point input budget Continuously Variable Resampler API taxonomy: the DSP building-block hierarchy and its naming axis +3 more

Gallery pages in this domain¶

CIC Decimation Filter — wideband IQ → CIC → narrowband slice; 84 dB measured alias rejection (R=8, N=4).
Farrow Interpolator — fractional-delay resampling.
HalfbandDecimatorQ15 — Fixed-Point Halfband Decimator — fixed-point Q15 halfband 2:1 decimator for interleaved IQ int16.
RateConverter — Automatic Cascade Selection — automatic CIC / halfband / polyphase cascade for any rate ratio.

Design pages in this domain¶

CIC Decimator — the fixed-point input budget — the fixed-point input budget: DC gain and PAPR headroom
Continuously Variable Resampler — polyphase resampler architecture, testing, and performance optimizations

Used in other domains¶

Pages filed under another domain that name a symbol of this module, or link to or from a page filed here: a class used for another task is found from both sides, never re-filed.