Title :
Signal Modeling and Analysis of a Planar Phased-Array FMCW Radar With Antenna Switching
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., Stanford, CA, USA
fDate :
7/3/1905 12:00:00 AM
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;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2011.2123074
