Design and Implementation of Baseband Signal Processor for 77GHz Automotive Radar

• Main Authors: Hsu, Wei-Chiang, 徐偉強
• Other Authors: Lee, Ta-Sung
• Format: Others
• Language: en_US
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/73617869878666586612

碩士 === 國立交通大學 === 電信工程研究所 === 101 === In recent years, frequency modulated continuous wave (FMCW) technique is widely used in automotive radar systems. However, typical FMCW radars encounter some problems, e.g. the ghost target and overlapping problems, in multi-target situations. In this thesis, we propose a new design of baseband signal processing architecture and algorithms. To satisfy the short measurement time constraint without increasing the RF front end loading, the three-segment waveform with different slopes is adopted. By introducing new pairing mechanism and the spatial filter design algorithm, the proposed detection architecture requires low pairing time and provides high reliability. The proposed baseband signal processing algorithms is further implemented on a baseband signal processor. To reduce the execution time of the proposed baseband signal processing algorithms on the baseband signal processor, a high efficiency approach with low memory usage is developed. The effectiveness of the proposed scheme is confirmed by computer simulation and hardware emulation.