Commit Graph

91 Commits

Author SHA1 Message Date
Robert Jördens 57a5c4ff9b make lockin a unittest, not integration test 2021-01-22 16:04:02 +01:00
Robert Jördens d0d2c6352d lockin: refactor to use common lockin processing 2021-01-22 16:00:05 +01:00
Robert Jördens eea5033d36 dsp bench: fix 2021-01-22 11:38:38 +01:00
Robert Jördens 0cd2140668 rafactor complex, cossin, atan2 2021-01-21 16:12:59 +01:00
Robert Jördens cb280c3303 lockin integration: reduce and refactor further 2021-01-21 15:01:17 +01:00
Robert Jördens 948e58c910 lockin: refactor Lockin 2021-01-21 14:57:44 +01:00
Robert Jördens c078de05cc lockin: fix adc value conversion 2021-01-20 15:31:46 +01:00
Robert Jördens 778f4ac4d5 lockin: wrapping_neg 2021-01-19 11:30:12 +01:00
Robert Jördens 20488ea3bc lockin: refine 2021-01-19 11:01:21 +01:00
Matt Huszagh 73ffc873cd add lock-in integration test 2021-01-14 15:31:40 -08:00
Matt Huszagh 9a3c9afa7e fix reciprocal_pll divide error when reference frequency is 0 2021-01-14 14:51:07 -08:00
Matt Huszagh 9f0b3eb77e fix shift_round overflow error 2021-01-14 14:51:07 -08:00
Matt Huszagh 9697560404 reciprocal_pll: remove unneeded type cast 2021-01-13 09:08:16 -08:00
Matt Huszagh 76088efda5 dsp: add reciprocal_pll 2021-01-13 08:37:33 -08:00
Matt Huszagh 80ed715f5a shift sin/cos before demodulation product to avoid i64 2021-01-12 16:07:04 -08:00
Matt Huszagh 41ea2ebed4 use round up half integer rounding 2021-01-12 15:59:03 -08:00
Matt Huszagh e14aa8b613 move lock-in code to main.rs 2021-01-12 10:45:34 -08:00
Matt Huszagh 891aad3f17 remove debug_assert in divide_round 2021-01-12 07:43:28 -08:00
Matt Huszagh 31d23a3e0c lock-in: use same method for batch_index branching in both instances 2021-01-12 07:36:56 -08:00
Matt Huszagh bae295140d update lock-in for integer math and PLL 2021-01-12 07:36:56 -08:00
Matt Huszagh 13543ce048 pll update input is named "x" not "input" 2021-01-04 11:14:27 -08:00
Robert Jördens cc42c0c477 iir_int: add optimized integer iir implementation 2020-12-22 16:49:12 +01:00
Robert Jördens 8d9af70c19 trig/atan2: refine
* use dynamic scaling of the inputs to get accurate ratios (effectively
  floating point) to maintain accuracy for small arguments
* this also allows shifting later and keep more bits
* use u32 ratio to keep one more bit
* merge the corner case unittests into the big test value list
* print rms, absolute and axis-relative angle
* simplify the correction expression to get rid of one multiplication
* use 5 bit for the correction constant and 15 bits for r
* least squares optimal correction constant, this lowers the max error
  below 5e-5
2020-12-20 21:07:23 +01:00
Robert Jördens 12d5945d81 dsp/testing: simplify 2020-12-20 20:23:32 +01:00
Matt Huszagh 7e794373f4 atan2: fix output range description 2020-12-17 14:21:39 -08:00
Matt Huszagh 3125365a15 add atan2 host benchmark 2020-12-17 14:01:57 -08:00
Matt Huszagh 17cf71f22b atan2: replace min, max with x, y 2020-12-17 11:39:32 -08:00
Matt Huszagh 9c5e68ceea atan2: test min and max angle inputs 2020-12-17 11:34:39 -08:00
Matt Huszagh 6ffc42021e move atan2 test before cossin test to mimic function order 2020-12-17 10:09:12 -08:00
Matt Huszagh 09a744f59c dsp: move iir generic math functions to top-level module scope 2020-12-17 10:04:48 -08:00
Matt Huszagh 56641d5838 atan2: specify why we cannot use more than 15 bits for the atan argument 2020-12-17 10:02:35 -08:00
Matt Huszagh 1f28949bc5 atan2: store sign bits and greater of |x| and |y| 2020-12-17 09:47:39 -08:00
Matt Huszagh cb38c3e3bd atan2: clarify sharing bits between atan argument and constant factors 2020-12-17 09:31:38 -08:00
Matt Huszagh 5717991ada atan2: result range is from i32::MIN+1 to i32::MAX 2020-12-17 09:31:18 -08:00
Matt Huszagh d7111a3aa8 dsp/trig: let compiler infer type parameter in atan2 abs call 2020-12-17 08:04:53 -08:00
Matt Huszagh d9d500743f simplify atan initial angle expression 2020-12-17 08:02:54 -08:00
Matt Huszagh 2ddaab8fae dsp: fix bench import path 2020-12-16 16:57:18 -08:00
Matt Huszagh 85ae70fe62 rename trig tests to delineate between cossin and atan2 2020-12-16 16:28:49 -08:00
Matt Huszagh 7c4f608206 move cossin and atan2 into the same trig file 2020-12-16 16:26:44 -08:00
Matt Huszagh e257545321 fix formatting 2020-12-16 16:14:11 -08:00
Matt Huszagh 5d055b01a0 dsp: add atan2 2020-12-16 16:02:42 -08:00
Matt Huszagh 6d651da758 dsp: add f64 isclose testing function 2020-12-16 16:02:17 -08:00
Matt Huszagh 17f9f0750e dsp: move abs to lib.rs 2020-12-16 16:01:50 -08:00
Matt Huszagh e89db65722 rename trig.rs -> cossin.rs 2020-12-16 15:57:47 -08:00
Robert Jördens 469c89ea70 pll: refine gains 2020-12-14 09:58:27 +01:00
Robert Jördens 75c4120258 cossin: buffer test data output 2020-12-13 13:24:28 +01:00
Robert Jördens d271dccaba cossin bench: be fair to glibc 2020-12-11 19:08:11 +01:00
Robert Jördens d4fceea5d1 cossin: bench against (i32 as f32).sin_cos() 2020-12-11 17:26:50 +01:00
Robert Jördens 5cd93d3318 fmt 2020-12-11 17:08:16 +01:00
Robert Jördens a85738a651 dsp: add host benchmark 2020-12-11 15:19:13 +01:00