基于DSP的多功能汽車防撞雷達(dá)的設(shè)計(jì):摘要：本系統(tǒng)基于C6000 系列DSP 的實(shí)時(shí)操作系統(tǒng)DSP/BIOS 的多線程多任務(wù)管理，對(duì)前視雷達(dá)和后視雷達(dá)的接收信號(hào)同時(shí)進(jìn)行實(shí)時(shí)處理，是集車載前視雷達(dá)、后視雷達(dá)、倒車?yán)走_(dá)的功能于一體的多功能汽車防撞雷達(dá)。在軟件方面，利用AR 模型功率譜估計(jì)的burg 算法、MTD-上下掃頻相互匹配法對(duì)接收到的中頻信號(hào)進(jìn)行處理，提高了信噪比和信號(hào)處理的準(zhǔn)確度,更好地解決多目標(biāo)問題，降低虛報(bào)警、漏報(bào)警率。
關(guān)鍵字：汽車防撞； LFMCW 雷達(dá) ; DSP ; DSP/BIOS

Abstract: This system which real-timely processes the received signals of the forward radar and rearward radar at the same time based on the multi-threaded multi-task management of real-time operating system DSP / BIOS of the C6000 DSP series , is a multi-purpose automobile collision avoidance radar which sets forward radar and rearward radar and reversing radar in one. As the software ，the burg algorithm of the AR model power spectrum estimate and the MTD- matched each other from top to bottom scan periods are used to process the received IF signals ,which can improve SNR and the accuracy of signal processing ,and it is a better way to resolve the multi-objective problem and reduce false alarm and missed alarm rate.
Keywords: automobile collision avoidance ; LFMCW radar； DSP ; DSP / BIOS