Zhenghua Xia, G. Fang, S. Ye, Qunying Zhang, Hejun Yin, Peng Zhang, Jingrong Yang, Deyuan Fan
{"title":"Design of modulated m-sequence ultrawideband radar for life detection","authors":"Zhenghua Xia, G. Fang, S. Ye, Qunying Zhang, Hejun Yin, Peng Zhang, Jingrong Yang, Deyuan Fan","doi":"10.1109/ICGPR.2014.6970569","DOIUrl":null,"url":null,"abstract":"In life detection with ultrawideband (UWB) radar, the high signal-to-noise ratio (SNR) is very important for good performance. In this paper, the m-sequence with a carrier is applied to life detection, and SNR can be improved by pulse compression and linear average. The hybrid sampling technique is used to improve the sampling resolution and reduce the cost. The peak-to-sidelobel ratio after pulse compression would be degraded when the delay resolution of the delay line drifts in different temperature, thus the actual delay resolution of the delay line should be measured before hybrid sampling. Experiments show that the proposed modulated m-sequence UWB radar has good detection performance.","PeriodicalId":212710,"journal":{"name":"Proceedings of the 15th International Conference on Ground Penetrating Radar","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 15th International Conference on Ground Penetrating Radar","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICGPR.2014.6970569","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
In life detection with ultrawideband (UWB) radar, the high signal-to-noise ratio (SNR) is very important for good performance. In this paper, the m-sequence with a carrier is applied to life detection, and SNR can be improved by pulse compression and linear average. The hybrid sampling technique is used to improve the sampling resolution and reduce the cost. The peak-to-sidelobel ratio after pulse compression would be degraded when the delay resolution of the delay line drifts in different temperature, thus the actual delay resolution of the delay line should be measured before hybrid sampling. Experiments show that the proposed modulated m-sequence UWB radar has good detection performance.