Title :
A 26GHz Short-Range UWB Vehicular-Radar Using 2.5Gcps Spread Spectrum Modulation
Author :
Fukuda, Takeshi ; Negoro, Noboru ; Ujita, Shinji ; Nagai, Shuichi ; Nishijima, Masaaki ; Sakai, Hiroyuki ; Tanaka, Tsuyoshi ; Ueda, Daisuke
Author_Institution :
Matsushita Electr. Ind. Co., Osaka
Abstract :
A 26 GHz short-range radar (SRR) system has been developed based on a 2.5 Gcps direct sequence spread spectrum (DSSS) technique combined with simple homodyne detection. Separate frequency-triplers have been provided with transmitter (TX) and receiver (RX) chips to cut off the carrier-leakage path from local signal. By using this configuration, carrier-leakage in TX signal can be significantly suppressed falling into the satisfactory range of the UWB regulation. The present radar system achieved the maximum detection range of 14 m with the resolution of 6 cm. TX, RX, and PN generator chipset has been developed using InGaP/GaAs HBT process, where fT/fmax of 65 GHz/ 83 GHz were attained.
Keywords :
millimetre wave devices; radar receivers; radar transmitters; road vehicle radar; spread spectrum communication; ultra wideband radar; direct sequence spread spectrum modulation; frequency 26 GHz; frequency-triplers; homodyne detection; radar receivers; radar transmitters; short-range UWB vehicular-radar; Bandwidth; Millimeter wave radar; Radar detection; Radar remote sensing; Radio frequency; Signal design; Spaceborne radar; Spread spectrum communication; Spread spectrum radar; Ultra wideband radar; Heterojunction bipolar transistors; Millimeter wave radar; Radar receivers; Radar transmitters; Spread spectrum radar;
Conference_Titel :
Microwave Symposium, 2007. IEEE/MTT-S International
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0688-9
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2007.380435