Fixed-point arithmetic¶

Q8 and Q15 accumulators with exact integer arithmetic.

Python module doppler.arith. Area: Numeric.

Classes and functions¶

Name	Kind	API	Guide	Design
`AccQ15`	class	AccQ15	Getting Started with Fixed-Point Arithmetic	API taxonomy: the DSP building-block hierarchy and its naming axis
`AccQ8`	class	AccQ8	Getting Started with Fixed-Point Arithmetic	API taxonomy: the DSP building-block hierarchy and its naming axis
`add_q15`	function	add_q15	Getting Started with Fixed-Point Arithmetic
`add_q8`	function	add_q8
`dot_q15`	function	dot_q15	Getting Started with Fixed-Point Arithmetic
`dot_q8`	function	dot_q8	Getting Started with Fixed-Point Arithmetic
`mul_q15`	function	mul_q15	Getting Started with Fixed-Point Arithmetic
`mul_q8`	function	mul_q8
`shl_i64`	function	shl_i64
`shl_q15`	function	shl_q15	Getting Started with Fixed-Point Arithmetic
`shl_q8`	function	shl_q8
`shr_i64`	function	shr_i64
`shr_q15`	function	shr_q15	Getting Started with Fixed-Point Arithmetic
`shr_q8`	function	shr_q8
`sub_q15`	function	sub_q15	Getting Started with Fixed-Point Arithmetic
`sub_q8`	function	sub_q8

Guide pages in this domain¶

Getting Started with Fixed-Point Arithmetic — Q15 / UQ15 types and quantization

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.

Rate conversion & resampling: HalfbandDecimatorQ15 — Fixed-Point Halfband Decimator
Sample-format conversion (cvt): ADC Quantisation — 3–8 Bits, Quantization Design
Utilities: API taxonomy: the DSP building-block hierarchy and its naming axis