Abstract
Ground moving-target indication (GMTI) provides both an opportunity and challenge for coherent multiple-input multiple-output (MIMO) radar. MIMO techniques can improve a radar's angle estimation and the minimum detectable velocity (MDV) for a target. However, the challenge of clutter mitigation places significant constraints on MIMO radar waveforms. In this paper, the loss of target return because of clutter mitigation (signal-to-noise ratio (SNR) loss) is the driving performance metric. The ideal, orthogonal repeated-pulse waveform is shown not to exist. Pulse-to-pulse time-varying waveforms, such as Doppler-division multiple access (DDMA), are shown to offer SNR loss performance approaching ideal MIMO systems.
Original language | English (US) |
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Article number | 5393293 |
Pages (from-to) | 21-32 |
Number of pages | 12 |
Journal | IEEE Journal on Selected Topics in Signal Processing |
Volume | 4 |
Issue number | 1 |
DOIs | |
State | Published - Feb 2010 |
Externally published | Yes |
Keywords
- Multiple-input multiple-output (MIMO) systems
- Pulse Doppler radar
- Radar clutter
- Radar theory
ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering