A new high sensitivity radar sensor for space debris detection and accurate orbit determination (original) (raw)
2015, 2015 IEEE Metrology for Aerospace (MetroAeroSpace)
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Development of a digital receiver for range imaging atmospheric radar
Journal of Atmospheric and Solar-Terrestrial Physics, 2014
In this paper, we describe a new digital receiver developed for a 1.3-GHz range imaging atmospheric radar. The digital receiver comprises a generalpurpose software-defined radio receiver referred to as the Universal Software Radio Peripheral 2 (USRP2) and a commercial personal computer (PC). The receiver is designed to collect received signals at an intermediate frequency (IF) of 130 MHz with a sample rate of 10 MS s -1 . The USRP2 digitizes IF received signals, produces IQ time series, and then transfers the IQ time series to the PC through Gigabit Ethernet. The PC receives the IQ time series, performs range sampling, carries out filtering in the range direction, decodes the phase-modulated received signals, integrates the received signals in time, and finally saves the processed data to the hard disk drive (HDD). Because only sequential data transfer from the USRP2 to the PC is available,
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