Novel method for ambiguity elimination in the LFMCW radar

来源 :Journal of Systems Engineering and Electronics | 被引量 : 0次 | 上传用户:k413287823
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Aimed at solving the distance and velocity decoupling problems of a moving target in LFMCW radar signal processing, a multiple repetition frequency waveform is adopted and a Doppler frequency cluster algorithm is proposed, which is capable of recovering true velocity from the coupled velocity estimation directly. For the resolution of multiple targets, a match algorithm based on mean square error is also proposed. The combination of the above two methods realizes distance and velocity decoupling of multiple moving targets. The result of simulation verifies the effectiveness of the methods, the velocity estimation performance of DFS algorithm is improved by 2.5 dB compared with Chinese remainder theorem. Aimed at solving the distance and velocity decoupling problems of a moving target in LFMCW radar signal processing, a multiple repetition frequency waveform is adopted and a Doppler frequency cluster algorithm is proposed, which is capable of recovering true velocity from the coupled velocity estimation directly. For the resolution of multiple targets, a match algorithm based on mean square error is also proposed. The combination of the above two methods realizes distance and velocity decoupling of multiple moving targets. The result of simulation verifies the effectiveness of the methods, the velocity estimation performance of DFS algorithm is improved by 2.5 dB compared with Chinese remainder theorem.
其他文献
  本次研究对12块铁陨石(其中10块样品为中国铁陨石)进行了负离子状态的高精度NTIMS(TRITON)Re-Os同位素测定,Re, Os含量使用稀释剂法进行测定。 9块样品的Re、Os含量变化呈
  SRB混合菌群吸附重金属的全过程中,硫酸盐都被不同程度的还原,说明SRB混合菌群有不同程度的还原活性。不同的浓度、不同的重金属对硫酸盐还原的影响相差很大。
  本次选择了渝东南地区七曜山背斜及桑柘向斜的部分煤矿煤样开展了煤中主量元素和稀有金属含量的研究,初步分析了元素的富集特征。结果表明渝东南地区绝大多数煤矿煤层中Li
1992年我院用国产长效皮下埋植避孕剂(左旋18-甲基炔诺酮),对600例育龄妇女进行皮下埋植,经1年随访,结果显示:国产长效皮下埋植剂的避孕效果达100%。600例中10例因出现月经异
  今后,煤中共伴生有益矿产资源的勘查与评价发展趋势主要是三个方面:一是测试技术的选择与研究。需要优选最佳的有益元素测试方法,以确保测试成果的可靠性,确定所测试煤中有益
  本文选取了四个地区的不同编制程度的煤为研究对象,对他们进行了索氏抽提、族组分分离、色谱-质谱实验。结果发现样品的姥植比介于0.9~1.37,比普通的煤要小很多,他们的共同
为了解城市和农村学龄前儿童蛲虫病的感染情况,我们设点对承德市区和丰产县农村0~6岁儿童进行了调查。1 材料与方法 承德市区选好、中、差共计6个中小型托儿所,丰宁县选不同
  本次采取渝东南地区吴家坪组底部凝灰岩样品,进行了逐级化学提取实验、X射线衍射分析、扫描电镜(SEM-EDX)和薄片的观察实验以及元素相关性分析,初步研究稀有金属在凝灰岩中
西安市2~3岁儿童的气质结构探讨周胜利,姚凯南西安医科大学二附院(710004)近二、三十年来国内、外大量的实践和研究表明,学龄前儿童的气质特征对学龄期、年长儿乃至成人期的心理、行为问题