MIMO radar waveform design

MIMO radar waveform design

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In this chapter, we review various probing waveform transmission schemes for multiple-input multiple-output (MIMO) radar with co-located antennas. An orthogonal probing waveform set is required to separate the transmitted waveforms at the receiver side to achieve a large virtual array size afforded by the MIMO radar. This increased virtual aperture size provides MIMO radar systems with many advantages, including better spatial resolution, improved parameter identifiability and enhanced performance for ground moving target indication (GMTI) and radar imaging. We discuss several MIMO radar transmission schemes herein, including fast-time code division multiple access (FT-CDMA), frequency-division multiple access (FDMA), time division multiple access (TDMA), randomized TDMA (R-TDMA), Doppler division multiple access (DDMA) and slow-time CDMA (ST-CDMA). The merits and limitations of these transmission schemes will be discussed, and brief examples will be presented for illustration purposes.

Inspec keywords: code division multiple access; radar antennas; radar imaging; frequency division multiple access; MIMO radar; Doppler radar; time division multiple access

Other keywords: R-TDMA; randomized TDMA; frequency-division multiple access; multiple-input multiple-output radar; orthogonal probing waveform set; Doppler division multiple access; DDMA; spatial resolution; MIMO radar waveform design; FDMA; co-located antennas; radar imaging; GMTI; waveform transmission schemes; slow-time CDMA; ground moving target indication; time division multiple access; ST-CDMA

Subjects: Multiple access communication; Radar equipment, systems and applications; Optical, image and video signal processing; Radio links and equipment

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