Abstract
This work addresses code division multiple access (CDMA) implementation of automotive multiple-input multiple-output (MIMO) radars. The tansec frequency modulation (TSFM) is proposed as a single intracoding scheme for CDMA-MIMO radars. The properties of the TSFM coding family are analyzed and two novel codeword selection algorithms are proposed. The TSFM is compared to a variety of coding families by evaluating their autocorrelation and cross-correlation properties. The considered coding families are based on phase coding: Hadamard, Gold, optimal peak to sidelobe; and frequency coding: Piecewise linear frequency modulated. Properties of the coding families are analyzed with a variety of novel criteria, which are especially useful for CDMA-MIMO radars. The performance of the CDMA-MIMO radar with different coding families is evaluated via simulations of practical multitarget automotive scenarios. It is shown that the frequency-based TSFM coding family outperforms the other considered coding families in terms of their cross-correlation properties.
| Original language | English |
|---|---|
| Article number | 9178479 |
| Pages (from-to) | 76-89 |
| Number of pages | 14 |
| Journal | IEEE Transactions on Aerospace and Electronic Systems |
| Volume | 57 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Feb 2021 |
Keywords
- Automotive radar
- code division multiple access (CDMA) multiple-input multiple-output (MIMO) radar
- orthogonal waveforms
- tansec signal
ASJC Scopus subject areas
- Aerospace Engineering
- Electrical and Electronic Engineering