1. Colocated MIMO radar sidelobe suppression using random space-time coding
- Author
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Hongwei Liu, B.C. Liu, Shenghua Zhou, Q. Liu, and Kuiying Yin
- Subjects
Diagonal ,MIMO ,Random permutation ,law.invention ,symbols.namesake ,law ,Electronic engineering ,symbols ,Waveform ,Polyphase system ,Radar ,Space–time code ,Algorithm ,Doppler effect ,Computer Science::Information Theory ,Mathematics - Abstract
For colocated multiple-input multiple-output (MIMO) radar transmitting orthogonal polyphase coded waveform, a low range, angular and Doppler sidelobe is desirable. In this paper, we propose a MIMO radar sidelobe suppression method based on random space-time coding (STC) method. In detail, at each pulse repetition period, a random STC matrix, composed of a diagonal random phase matrix multiplied by a random permutation matrix, is modulated to waveforms before transmission. Such a kind of STC matrix can keep the constant modulus property of transmitting waveforms and can decrease range, angular and Doppler sidelobe significantly. (4 pages)
- Published
- 2013
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