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A simple two-stage multiplierless cascaded–integrator–comb (CIC)-based decimator is presented. The first stage is a cascaded CIC filter whereas the second stage is a cascaded CIC filter and a second-order multiplierless compensator. The proposed decimator can be realised without filtering at high input rate by making use of the polyphase decomposition of the comb filter in the first stage. The proposed filter exhibits high aliasing attenuation and a low passband droop. The design parameters are the decimation factors, M1 and M2, numbers of cascaded CIC filters L and K, and parameter b of the compensator.
References
-
-
1)
-
H.Y. Aboushady ,
Y. Dumonteix ,
M.M. Loerat ,
H. Mehrez
.
Efficient polyphase decomposition of comb decimation filters in Σ-Δ analog-to-digital converters.
IEEE Trans. Circuits Syst. – II
,
10 ,
898 -
903
-
2)
-
M. Laddomada
.
Comb based decimation filters for ΣΔ A/D converters: novel schemes and comparisons.
IEEE Trans. Circuits Syst. – I
,
5 ,
1769 -
1779
-
3)
-
W. Kim ,
C. Lee ,
S. Ahn ,
S. Choi
.
Design of CIC roll-off compensation filter in a W-CDMA digital receiver.
Digit. Signal Process.
,
846 -
854
-
4)
-
M. Laddomada
.
Design of multistage decimation filters using cyclomatic polynomials: optimization and design issues.
IEEE Trans. Circuits Syst. – I
,
7 ,
1977 -
1987
-
5)
-
G. Jovanovic Dolecek ,
S.K. Mitra
.
Simple method for compensation of CIC decimation filter.
Electron. Lett.
,
9 ,
1162 -
1163
-
6)
-
S.N. Nerurkar ,
K.H. Abed
.
Low-power decimator design using approximated linear-phase N-band IIR filter.
IEEE Trans. Signal Process.
,
4 ,
1550 -
1553
-
7)
-
G. Jovanovic Dolecek ,
S.K. Mitra
.
A new multistage comb-modified rotated sinc (RS) decimator with sharpened magnitude response.
IEICE Trans.
,
7 ,
1331 -
1339
-
8)
-
E.B. Hogenauer
.
An economical class of digital filters for decimation and interpolation.
IEEE Trans. Acoust. Speech Signal Process.
,
2 ,
155 -
162
-
9)
-
G. Jovanovic Dolecek ,
S.K. Mitra
.
A new two-stage sharpened comb decimator.
IEEE Trans. Circuits Syst. – I
,
7 ,
1416 -
1420
-
10)
-
K.S. Yeung ,
S.C. Chan
.
The design and multiplier-less realization of software radio receivers with reduced system delay.
IEEE Trans. Circuits Syst. – I
,
12 ,
2444 -
2459
-
11)
-
M. Laddomada
.
Generalized comb decimation filters for sigma-delta A/D converters: analysis and design.
IEEE Trans. Circuits Syst. – I
,
5 ,
994 -
1005
-
12)
-
L.L. Presti
.
Efficient modified-sinc filters for Σ-Δ̇a/d converters.
IEEE Trans. Circuits Syst. – II
,
11 ,
1204 -
1213
-
13)
-
Jovanovic Dolecek, G., Mitra, S.K.: `On design of CIC decimation filter with improved response', Proc Int. Symp. Communications, Control & Signal Processing, March 2008, Malta, p. 1072–1076.
-
14)
-
G. Jovanovic Dolecek
.
(2002)
Multirate systems: design and applications.
-
15)
-
M. Laddomada
.
On the polyphase decomposition for design of generalized comb decimation filters.
IEEE Trans. Circuits Syst. – I
,
8 ,
2287 -
2299
-
16)
-
A. Kwentus ,
A. Willson
.
Application of filter sharpening to cascaded integrator–comb decimation filters.
IEEE Trans. Signal Process.
,
2 ,
457 -
467
-
17)
-
R.A. Losada ,
R. Lyons
.
Reducing CIC filter complexity.
IEEE Signal Process. Mag.
,
4 ,
124 -
126
-
18)
-
Y.C. Lim ,
R. Yang
.
On the synthesis of very sharp decimators and interpolators using the frequency-response masking technique.
IEEE Trans. Signal Process.
,
4 ,
1387 -
1397
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-spr.2008.0160
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