Multi-Frequency precision radar altimetry from space for estimation of sea surface state

Min Ho Ka, Aleksandr I. Baskakov, Se Yeon Jeon, Inchan Paek, Jonghun Jang

Research output: Contribution to journalArticle


The measurement performance of the dual-frequency correlation radar altimetry for the estimation of the sea wave heights is not as accurate in satellite as in airborne platform. Multi-frequency sensing signals can be applied to obtain sea surface state information while maintaining sensitivity over wide range of sea wave turbulences from space. The proposed method uses a sensing signal with angle modulation with optimum modulation index of m = 4.5, which enables to obtain a spectrum from 11 harmonics, instead of generating 11 frequency transmit signals for spaceborne multi-frequency radar altimetry. Maximum sensitivity of the measurement to the root-mean-square of the sea wave heights was obtained for the optimal frequency gaps between transmit signals.

Original languageEnglish
Pages (from-to)1804-1805
Number of pages2
JournalElectronics Letters
Issue number21
Publication statusPublished - 2016 Oct 13

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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