Receive Space-Time Filter and Transmit Sequence Design in MIMO Radar Systems

Autor:	Sadjad Imani, Mohammad Mahdi Nayebi, Mehdi Rashid
Rok vydání:	2021
Předmět:	Computational complexity theory Computer science Iterative method MIMO Fast Fourier transform Constrained optimization Signal-to-interference-plus-noise ratio Filter (signal processing) Electrical and Electronic Engineering Coordinate descent Algorithm Computer Science Applications
Zdroj:	Wireless Personal Communications. 122:501-522
ISSN:	1572-834X 0929-6212
DOI:	10.1007/s11277-021-08910-5
Popis:	In this paper, we are going to joint design of the continuous/discrete phase transmit waveform and receive space-time filter to maximize the Signal to Interference plus Noise Ratio (SINR) in collocated Multiple Input Multiple Output (MIMO) radar systems. The resulting problem is non-convex, so we devise an iterative algorithm based on alternating optimization that applies to two different sub-problems, which monotonically enhances the objective function. In each sub-problem, we benefit from an efficient procedure based on the coordinate descent (CD) framework, and iteratively tackle the non-convex constrained optimization problem.Also, Fast Fourier Transform (FFT) is used to reduce the computational complexity in designing set of discrete phase sequences. Numerical examples illustrate superior performance of the proposed algorithm in comparison with the state-of-the-art counterparts.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::036b87c48a26e1ed15787a9543b8e2aa https://doi.org/10.1007/s11277-021-08910-5 Zobrazit plný text záznamu Full text from SpringerLink