Title :
AX.25 protocol compatible reconfigurable 2/4 FSK modulator design for nano/micro-satellites
Author :
Dilek, Seyyid M. ; Ayranci, A. ; Seker, A. ; Ceylan, Oguzhan ; Yagci, H.B.
Author_Institution :
RF Lab., Istanbul Tech. Univ., Istanbul, Turkey
Abstract :
In this paper, implementation of a FPGA-based and VHDL coded reconfigurable frequency shift keying (FSK) modulator for nano-satellite communication systems is presented. Reconfigurable FSK modulator includes 2-FSK and 4-FSK modulators. The system is compatible with AX.25 data link layer protocol for general amateur radio communication which is popular in micro/nano satellite communication. ROM based direct digital synthesizer (DDS) generates a sinusoidal wave at the output with a specified frequency and phase.
Keywords :
direct digital synthesis; field programmable gate arrays; frequency shift keying; hardware description languages; protocols; radiocommunication; read-only storage; satellite communication; waveform generators; 2-FSK modulator; 4-FSK modulator; AX.25 data link layer protocol; AX.25 protocol compatible reconfigurable; DDS; FPGA-based reconfigurable frequency shift keying modulator; FSK modulator design; ROM based direct digital synthesizer; VHDL coded reconfigurable frequency shift keying modulator; general amateur radio communication; microsatellite communication; microsatellites; nanosatellite communication systems; nanosatellites; reconfigurable FSK modulator; sinusoidal wave; Educational institutions; Frequency shift keying; Protocols; Read only memory; Satellite broadcasting; Satellites; AX.25 protocol; FPGA; frequency shift keying; nano/micro satellites; software defined radio;
Conference_Titel :
Telecommunications Forum (TELFOR), 2012 20th
Conference_Location :
Belgrade
Print_ISBN :
978-1-4673-2983-5
DOI :
10.1109/TELFOR.2012.6419235
