Reconstruction filter

Whitening Filter(WF)


analog Anti-Aliasing filter(aAA)

('17/10/10)

zpk

[Hz]

Q

Foton

pole

7.6815821k

-

pole

10.486359k

1.0555075

×

pole

49.605226k

-

×

pole

856.08877k

-

×

zero

62.978311k

67.067911M

×

delay

407.45488n

-

×

factor

999.3461m

-


inverse analog Anti-Aliasing filter(iaAA)


ADC


digital Anti-Aliasing filter(dAA)

RCG-2.9.7 ('17/10/10)

zpk

[Hz]

Q

Foton

pole

2895.34

1.1373

pole

5395.62

7.64573

zero

8192

666

zero

16384

555

×

RCG-3.0 or higher ('19/03/21)

zpk

[Hz]

Q

Foton

pole

5000

0.830824

pole

6700

5.73686

zero

8200

28.6485

×

zero

16384

14.3274

×


inverse digital Anti-Aliasing filter(idAA)


anti-Whitening Filter(aWF)


anti-DeWhitening filter(aDW)


digital Anti-Imaging filter(dAI)

('17/11/06) for 16k->64k

zpk

[Hz]

Q

Foton

pole

2895.34

1.1373

pole

5395.62

7.64573

zero

8192

666

zero

16384

555

×

('18/10/25) for 2k->64k

zpk

[Hz]

Q

Foton

pole

850

0.871724

pole

1048

1.46189

zero

2048

286.482

zero

4096

286.478

×


DAC


analog Anti-Imaging filter(aAI)

('17/10/10)

zpk

[Hz]

Q

Foton

pole

7.6815821k

-

pole

10.486359k

1.0555075

×

pole

49.605226k

-

×

pole

856.08877k

-

×

zero

62.978311k

67.067911M

×

delay

407.45488n

-

×

factor

999.3461m

-


DeWhitening filter(DW)


KAGRA/Subgroups/CAL/WG/DANA/ReconstructionFilter (last edited 2019-03-21 14:05:12 by TakahiroYamamoto)