Title :
A new 94-GHz six-port collision-avoidance radar sensor
Author :
Moldovan, Emilia ; Tatu, Serioja-Ovidiu ; Gaman, Tamara ; Wu, Ke ; Bosisio, Renato G.
Author_Institution :
Dept. de Genie Electr., Ecole Polytech. de Montreal, Que., Canada
fDate :
3/1/2004 12:00:00 AM
Abstract :
A new 94-GHz collision avoidance radar sensor is proposed. The receiver front-end module is based on a six-port phase/frequency discriminator (SPD). The SPD, composed of four 90° hybrid couplers, is manufactured in a metal block of brass using a computer numerically controlled milling machine. Simulation and measurement S-parameters of the SPD are presented in the frequency band. New SPD computer models are generated and used in the system simulations. Preliminary measurements and system simulations performed to obtain the relative velocity of the target and its distance are presented. Statistical evaluations show an acceptable measurement error of this radar sensor.
Keywords :
CW radar; S-parameters; collision avoidance; discriminators; distance measurement; multiport networks; radar receivers; road vehicle radar; 94 GHz; S-parameters; automotive radar; collision avoidance radar sensor; computer models; continuous wave radar sensor; distance measurement; hybrid couplers; passive linear component; receiver front-end module; six-port phase-frequency discriminator; system simulations; voltage-controlled oscillator; Collision avoidance; Computational modeling; Computer aided manufacturing; Computer simulation; Couplers; Frequency measurement; Metalworking machines; Radar; Scattering parameters; Velocity measurement;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2004.823533
