FPGA Implementation of Optimized CIC Filter for Sample Rate Conversion in Software Radio Receiver
B. Ashok Agarwal. Int. J. on Recent Trends in Engineering and Technology,, 9 (1):
6(Juli 2013)
Zusammenfassung
A software radio receiver is one which is tuned to
receive a transmitted signal on multiple communication
standards through software rather than hardware. To
incorporate multi-standard radio communications an
intermediate frequency of high ranges is used. Such high
intermediate frequencies when sampled with Nyquist rate
gets oversampled due to the phenomenon of Band Pass
sampling depending on the radio communication standard.
Hence a digital down converter (DDC) capable of reducing
the sampling rate in accordance with the radio communication
standard is required. Cascaded Integrated Comb (CIC) filters
are used for large sample rate conversion factors. In this paper
an optimized architecture for DDC employing CORDIC in
the mixer stage and the reconfigurable decimation factors for
CIC filters has been implemented. Optimized implementation
of CIC filter for sample rate conversion of multi-standard
radio communications reduces the hardware resources by more
than twenty percent when compared with the non-optimized
architecture.
%0 Journal Article
%1 ashokagarwal2013implementation
%A Ashok Agarwal, B. Lakshmi
%D 2013
%E Hope, Dr.Martin
%J Int. J. on Recent Trends in Engineering and Technology,
%K CIC CORDIC DDC FPGAs Filte SRC
%N 1
%P 6
%T FPGA Implementation of Optimized CIC Filter for Sample Rate Conversion in Software Radio Receiver
%U http://searchdl.org/public/journals/2013/IJRTET/9/1/522.pdf
%V 9
%X A software radio receiver is one which is tuned to
receive a transmitted signal on multiple communication
standards through software rather than hardware. To
incorporate multi-standard radio communications an
intermediate frequency of high ranges is used. Such high
intermediate frequencies when sampled with Nyquist rate
gets oversampled due to the phenomenon of Band Pass
sampling depending on the radio communication standard.
Hence a digital down converter (DDC) capable of reducing
the sampling rate in accordance with the radio communication
standard is required. Cascaded Integrated Comb (CIC) filters
are used for large sample rate conversion factors. In this paper
an optimized architecture for DDC employing CORDIC in
the mixer stage and the reconfigurable decimation factors for
CIC filters has been implemented. Optimized implementation
of CIC filter for sample rate conversion of multi-standard
radio communications reduces the hardware resources by more
than twenty percent when compared with the non-optimized
architecture.
@article{ashokagarwal2013implementation,
abstract = { A software radio receiver is one which is tuned to
receive a transmitted signal on multiple communication
standards through software rather than hardware. To
incorporate multi-standard radio communications an
intermediate frequency of high ranges is used. Such high
intermediate frequencies when sampled with Nyquist rate
gets oversampled due to the phenomenon of Band Pass
sampling depending on the radio communication standard.
Hence a digital down converter (DDC) capable of reducing
the sampling rate in accordance with the radio communication
standard is required. Cascaded Integrated Comb (CIC) filters
are used for large sample rate conversion factors. In this paper
an optimized architecture for DDC employing CORDIC in
the mixer stage and the reconfigurable decimation factors for
CIC filters has been implemented. Optimized implementation
of CIC filter for sample rate conversion of multi-standard
radio communications reduces the hardware resources by more
than twenty percent when compared with the non-optimized
architecture.},
added-at = {2014-02-03T06:16:40.000+0100},
author = {Ashok Agarwal, B. Lakshmi},
biburl = {https://www.bibsonomy.org/bibtex/2f1de7207a6c0eca4e55d739d57d62b17/idescitation},
editor = {Hope, Dr.Martin},
interhash = {17f2cad66806db9c6e7e033a1a24e35c},
intrahash = {f1de7207a6c0eca4e55d739d57d62b17},
journal = {Int. J. on Recent Trends in Engineering and Technology,},
keywords = {CIC CORDIC DDC FPGAs Filte SRC},
month = {July},
number = 1,
pages = 6,
timestamp = {2014-02-03T06:16:40.000+0100},
title = {FPGA Implementation of Optimized CIC Filter for Sample Rate Conversion in Software Radio Receiver},
url = {http://searchdl.org/public/journals/2013/IJRTET/9/1/522.pdf},
volume = 9,
year = 2013
}