DocumentCode :
2102517
Title :
COTS based multichannel FM receiver and recorder using SDR concept
Author :
Bano, Rizwana Shaher ; Ramzan, Rashad
Author_Institution :
Nat. Univ. of Comput. & Emerging Sci. (FAST-NU), Islamabad, Pakistan
fYear :
2013
fDate :
8-11 Dec. 2013
Firstpage :
213
Lastpage :
216
Abstract :
Broadcast FM radio is low cost, portable and omnipresent source of information and entertainment in the urban as well as rural areas of developing countries. Regulatory authorities require an efficient and low-cost system to record large number of 24/7 FM transmissions to bring all the broadcast content within legal bounds so that they are not misused by the proscribed entities. In this paper we present a multichannel broadcast FM receiver and recorder based on SDR (Software Defined Radio) concept that is implemented using commercial off the shelf components (COTS). Multiple FM broadcast channels are down converted, digitized and then demodulated simultaneously. Recovered baseband audio signals are stored on hard disk with appropriate time stamps for easy on-demand retrieval and playback. The use of commercial analog RFTV tuner front-end, GNU SDR digitization board and PC makes the solution flexible, configurable, and low cost. In present form the system is tested to simultaneously receive and record up to fifteen FM radio channels. The system can be easily expanded to record all FM channels in a 88-108MHz band, just by using two RF TV tuner modules with same digitization FPGA board and PC.
Keywords :
audio recording; audio signal processing; digital audio broadcasting; digital television; field programmable gate arrays; frequency modulation; hard discs; radio receivers; software radio; tuning; wireless channels; COTS based multichannel FM receiver; COTS based multichannel FM recorder; FM broadcast channel; FM radio broadcast; FM radio channel; FM transmission; GNU SDR digitization board; PC; commercial analog RFTV tuner module; commercial off the shelf; digitization FPGA board; frequency 88 MHz to 108 MHz; hard disk; legal bound; on-demand retrieval; playback; recovered baseband audio signal storage; software defined radio; time stamp; Frequency modulation; Radio frequency; Receivers; Software; TV; Tuners; Universal Serial Bus; Broadband FM; COTS; FM Broadcast; FM Recording; FM receiver; GNU Radio; Multichannel FM; SDR;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronics, Circuits, and Systems (ICECS), 2013 IEEE 20th International Conference on
Conference_Location :
Abu Dhabi
Type :
conf
DOI :
10.1109/ICECS.2013.6815392
Filename :
6815392
Link To Document :
بازگشت