Title :
Implementation of an FPGA-based modem for UAV surveillance applications
Author :
Rupar, Michael ; Glancy, John ; Egg, Benjamin
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
Modern Unmanned Aerial Vehicles (UAVs) have the capability of carrying sensors that produce large amounts of data. A high speed wireless data link is required to transfer this data to other systems for processing. This paper presents an FPGA-based implementation of a high data-rate (350 Mbps) QPSK modulator and demodulator to support a high data rate relay from a UAV to a ground station. By using high speed ADCs and DACs in conjunction with state of the art FPGAs it is possible to implement all signal processing functions necessary in a modem. We will present the architecture and methodologies used for both the modulator and demodulator and discuss how these algorithms are implemented in an FPGA.
Keywords :
analogue-digital conversion; avionics; digital-analogue conversion; field programmable gate arrays; modems; phase shift keying; radio links; remotely operated vehicles; surveillance; FPGA based implementation; FPGA based modem; UAV surveillance application; high data-rate QPSK demodulator; high data-rate QPSK modulator; high speed ADC; high speed DAC; high speed wireless data link; signal processing; unmanned aerial vehicles; Demodulation; Field programmable gate arrays; Ground support; Modems; Quadrature phase shift keying; Relays; Signal processing algorithms; Surveillance; Unmanned aerial vehicles; Wireless sensor networks;
Conference_Titel :
Military Communications Conference, 2009. MILCOM 2009. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-5238-5
Electronic_ISBN :
978-1-4244-5239-2
DOI :
10.1109/MILCOM.2009.5380033
