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A two-dimensional phase coding for range ambiguity suppression.
- Source :
-
Digital Signal Processing . Oct2018, Vol. 81, p155-162. 8p. - Publication Year :
- 2018
-
Abstract
- Abstract Based on a two-dimensional phase coding, a novel range ambiguity suppression technique is proposed in this paper. By transmitting two-dimensional phase coded signals, the two-dimensional spectrum of the range ambiguous signals will be shifted along both range and azimuth directions compared with that of desired signals. Then, part of the two-dimensional spectrum of the range ambiguous signals will be located outside the two-dimensional spectral support, which is known in priori, of the desired signals. Considering the range frequency and Doppler oversamplings, a filter corresponding to the two-dimensional spectral support of the desired signals is applied, which suppresses the range ambiguity. Simulation results of both point targets and distributed targets validate the effectiveness of the proposed method. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHASE coding
*SIGNAL processing
*AZIMUTH
*DOPPLER effect
*ENCODING
Subjects
Details
- Language :
- English
- ISSN :
- 10512004
- Volume :
- 81
- Database :
- Academic Search Index
- Journal :
- Digital Signal Processing
- Publication Type :
- Periodical
- Accession number :
- 131633250
- Full Text :
- https://doi.org/10.1016/j.dsp.2018.07.008