cb126cc9-eaba-4baf-bcf8-f0a6e6fd8b83 83 12 6 decimal

&[DATE] &[TIME] - &[FILENAME]

Decimation 1 or 2 dcm 2 : F.adc 512 : 21 sys

------------------------------ f sinc 1 f 0 ≡ π f * sin π f * / abs cases :

Simple moving averege for 4 samples at 512/400Hz z DF z 03 range dcm / -^vectorize 4 / (sum :

Analog components values from schematic diagram r1 124103^* : c1 12109 -^* : r2 2103^* : c2 15109 -^* : r3 5.9 103^* : c3 100109 -^* : T.hp 100109 -^* 10 * 106^* 1 126.3565 232 1.21 / 1 + / / * eval : Fs F.adc dcm / : 42 mat

Equations eq 1 el v 2 el c1 * s * v 1 el 1 r1 / * + 1 r2 / 1 r1 / + c1 s * + ≡ : eq 2 el v 3 el 1 r1 / * v 1 el 1 r1 / * - v 1 el c2 * s * - v 1 el 1 r1 / * - 1 r1 / - ≡ : eq 3 el v 3 el c3 * s * v 3 el 1 r1 / * + v 1 el 1 r1 / * - v 2 el 1 r3 / * - v 3 el 1 r3 / * + 0 ≡ : 31 sys

System Matrix M 1 r1 / c1 s * 02 r1 / - c2 s * - 01 r1 / 1 r1 / - 1 r3 / - c3 s * 1 r1 / + 1 r3 / + 33 mat : v 1 r2 / 1 r1 / + c1 s * + 1 r1 / - 031 mat : 21 sys

Find Analog Board transfer function s H.a T.hp s * 1 T.hp s * + / M v linsolve maple 3 el * :

Digital moving average transfer function s H.d s Fs / - exp DF :

Transfer function magnitude vs frequency f Mag 202 π * 1 - sqrt * f * H.d 2 π * 1 - sqrt * f * H.a * Abs f Fs / sinc * 2300 -^+ log10 * :

p0 11000 range eval 11000 range Mag vectorize 10 Mag - eval augment : p1 1100 range eval 1100 range Mag vectorize 10 Mag - eval augment : p2 1500 range 500 / eval 1500 range 500 / Mag vectorize 10 Mag - eval augment : 31 sys

400/200 Hz

p1 406012 submatrix #

400/200 Hz

p1 p1 1 col p1 rows Ones 3 - ( * augment 2 1 sys

400/200 Hz

p2 p2 1 col p2 rows Ones 3 - ( * augment 2 1 sys