Abstract
A frequency domain system identification based multiple-input multiple-output (FDSI-MIMO) SAR algorithm is proposed to obtain high resolution wide swath imaging. In this paper, a frequency division multiple access (FDMA) is adopted in such a way that each transmitter emits a conventional linear frequency modulated (LFM) waveform modulated by a different carrier frequency and the obtained range resolution corresponds to the total transmitted bandwidth. The proposed method is free from inter-range cell interference (IRCI). In addition, a low PRF which is less than the Doppler bandwidth is used to obtain wide swath and the Doppler aliased spectrum is recovered using spatial filters.
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE Radar Conference (RadarConf) |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Pages | 1-6 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 1 Apr 2019 |
Keywords
- frequency division multiple access
- frequency modulation
- MIMO radar
- OFDM modulation
- radar imaging
- radar interference
- radar resolution
- radar transmitters
- spatial filters
- synthetic aperture radar
- frequency domain system identification
- wide swath high resolution IRCI-free MIMO SAR
- multiple-input multiple-output SAR algorithm
- FDSI-MIMO
- high resolution wide swath imaging
- carrier frequency
- range resolution
- conventional linear frequency modulated waveform
- inter-range cell interference
- Synthetic aperture radar
- Azimuth
- MIMO communication
- Transmitters
- Receivers
- Frequency-domain analysis
- Radar antennas
- MIMO
- system identification
- LFM
- Radar