Title
Doppler ambiguity resolution using random slow-time code division multiple access MIMO radar with sparse signal processing
Author
van Rossum, W.
Anitori, L.
Publication year
2018
Abstract
In this article a novel waveform, Random SlowTime Code Division Multiple Access (ST-CDMA) for MIMO radar is presented and investigated. ST-CDMA means that the waveforms of the different transmitters are orthogonal per burst, while conventional CDMA implies orthogonal waveforms of the different transmitters per pulse. In particular, the Doppler ambiguity performance of the proposed Random ST-CDMA waveform is compared to that of the well-known Doppler Division Multiple Access (DDMA) waveform, which is a specific type of STCDMA. Both in combination with conventional processing (based on matched filters) and with Sparse Signal Processing (SSP) the DDMA waveform yields a reduction in unambiguous Doppler range as compared to other MIMO waveforms, such as CDMA. Instead, the Random ST-CDMA waveform together with SSP yields no reduction in unambiguous Doppler Range and improved side lobe suppression.
Subject
Doppler ambiguity
Doppler Division Multiple Access
Sparse Signal Processing
Codes (symbols)
Matched filters
MIMO radar
MIMO systems
Radar signal processing
Transmitters
Conventional processing
Doppler ambiguity resolution
Multiple access
Orthogonal waveform
Side-lobe suppression
Time code
Code division multiple access
To reference this document use:
http://resolver.tudelft.nl/uuid:70e825f8-4135-4cff-92b1-8c7664f379d1
TNO identifier
820518
Publisher
Institute of Electrical and Electronics Engineers Inc.
ISBN
9781538641675
Source
2018 IEEE Radar Conference, RadarConf 2018. 23 April 2018 through 27 April 2018, 441-446
Document type
conference paper