Signal Modeling and Analysis of a Planar Phased-Array FMCW Radar With Antenna Switching

Author

Lee, Moon-Sik

Author_Institution

Dept. of Electr. Eng., Stanford Univ., Stanford, CA, USA

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

179

Lastpage

182

Abstract

A frequency-modulated continuous-wave (FMCW) radar system with a planar phased array based on antenna switching is considered. The radar system consists of N₁ linear antenna arrays where each linear antenna array consists of N₂ receiving antennas. In each cycle, the receiving antennas on each linear antenna array are switched to the single receiving channel in turn from the first antenna to the N₂th antenna. An accurate and detailed system model for the radar system is addressed. The Cramer-Rao lower bound (CRLB) analysis on the accuracy of estimating the azimuth angle, elevation angle, velocity, and range using the radar system is presented.

Keywords

CW radar; FM radar; antenna phased arrays; estimation theory; linear antenna arrays; phased array radar; planar antenna arrays; radar antennas; receiving antennas; Cramer-Rao lower bound analysis; antenna switching; detailed system model; frequency-modulated continuous-wave radar system; linear antenna array; planar phased-array FMCW radar; receiving antenna; signal modeling; single receiving channel; Arrays; Linear antenna arrays; Radar; Radar antennas; Receiving antennas; Signal to noise ratio; Switches; Antenna switching; Cramér–Rao lower bound (CRLB); frequency-modulated continuous-wave (FMCW) radar; planar phased array;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2123074

Filename

5724271