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A two-dimensional phase coding for range ambiguity suppression
- Source :
- Digital Signal Processing. 81:155-162
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
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.
- Subjects :
- Computer science
media_common.quotation_subject
0211 other engineering and technologies
Phase (waves)
02 engineering and technology
symbols.namesake
Artificial Intelligence
0202 electrical engineering, electronic engineering, information engineering
Range (statistics)
Point (geometry)
Electrical and Electronic Engineering
021101 geological & geomatics engineering
media_common
Applied Mathematics
Spectrum (functional analysis)
020206 networking & telecommunications
Ambiguity
Filter (signal processing)
Azimuth
Computational Theory and Mathematics
Signal Processing
symbols
Computer Vision and Pattern Recognition
Statistics, Probability and Uncertainty
Algorithm
Doppler effect
Subjects
Details
- ISSN :
- 10512004
- Volume :
- 81
- Database :
- OpenAIRE
- Journal :
- Digital Signal Processing
- Accession number :
- edsair.doi...........7a7b62d33d7b379538bea8d80551d55c