Abstract
In this paper, we present a system that allows to
realize frequency-division multiplexing multiple-input multiple-output
(MIMO) radars which are based on the frequency-modulated continuous-wave
(FMCW) principle. Multiple frequency-shifted FMCW signals, which can be
separated in the receiver, are used as transmit (TX) signals. The
frequency shifting is implemented using digitally generated sinusoids in
conjunction with delta-sigma-based transmitters. The proposed principle
requires only little adaptions compared to conventional FMCW-setups.
Furthermore a fast Fourier-transform stage, being present in many
conventional FMCW radars, can be used to separate the TX signals leading
to an efficient usage of existing building blocks. Measurements carried
out using a prototype system with 48 MIMO channels demonstrate the
feasibility of the proposed approach.
| Original language | English |
|---|---|
| Title of host publication | Microwave Symposium Digest (MTT), 2014 IEEE MTT-S International |
| Number of pages | 4 |
| Publication status | Published - Jun 2014 |
Fields of science
- 202019 High frequency engineering
- 202029 Microwave engineering
- 202033 Radar technology
JKU Focus areas
- Mechatronics and Information Processing