{"title":"一种基于非线性传输线的低成本、紧凑型软件定义超宽带雷达发射机","authors":"Tyler Kelley;Stephen Pancrazio;Samuel Wagner;Ababil Hossain;Nhat Tran;Anh-Vu Pham","doi":"10.1109/TRS.2025.3554135","DOIUrl":null,"url":null,"abstract":"In this article, we present a compact software-defined ultrawideband (UWB) 0.4–8.3-GHz transmitter that utilizes a nonlinear transmission line (NLTL) to expand the frequency of a transmitted pulse from a low-cost 2.5-GHz bandwidth arbitrary waveform generator (AWG). The developed transmitter consists of an AWG, amplification boards, and an NLTL. By leveraging the software-defined capabilities of the AWG and applying a digital predistortion (DPD) algorithm, we can iteratively adjust the input pulse to fine-tune and optimize the output pulse bandwidth. Ultimately, the UWB transmitter can generate software-defined pulses up to 8.3 GHz and detect 0.25-mm surface objects with a 3-dB area of 1.4 cm.","PeriodicalId":100645,"journal":{"name":"IEEE Transactions on Radar Systems","volume":"3 ","pages":"591-598"},"PeriodicalIF":0.0000,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Low-Cost and Compact Software-Defined UWB Transmitter for Radar Utilizing a Nonlinear Transmission Line\",\"authors\":\"Tyler Kelley;Stephen Pancrazio;Samuel Wagner;Ababil Hossain;Nhat Tran;Anh-Vu Pham\",\"doi\":\"10.1109/TRS.2025.3554135\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this article, we present a compact software-defined ultrawideband (UWB) 0.4–8.3-GHz transmitter that utilizes a nonlinear transmission line (NLTL) to expand the frequency of a transmitted pulse from a low-cost 2.5-GHz bandwidth arbitrary waveform generator (AWG). The developed transmitter consists of an AWG, amplification boards, and an NLTL. By leveraging the software-defined capabilities of the AWG and applying a digital predistortion (DPD) algorithm, we can iteratively adjust the input pulse to fine-tune and optimize the output pulse bandwidth. Ultimately, the UWB transmitter can generate software-defined pulses up to 8.3 GHz and detect 0.25-mm surface objects with a 3-dB area of 1.4 cm.\",\"PeriodicalId\":100645,\"journal\":{\"name\":\"IEEE Transactions on Radar Systems\",\"volume\":\"3 \",\"pages\":\"591-598\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-03-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Radar Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10937905/\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Radar Systems","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10937905/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Low-Cost and Compact Software-Defined UWB Transmitter for Radar Utilizing a Nonlinear Transmission Line
In this article, we present a compact software-defined ultrawideband (UWB) 0.4–8.3-GHz transmitter that utilizes a nonlinear transmission line (NLTL) to expand the frequency of a transmitted pulse from a low-cost 2.5-GHz bandwidth arbitrary waveform generator (AWG). The developed transmitter consists of an AWG, amplification boards, and an NLTL. By leveraging the software-defined capabilities of the AWG and applying a digital predistortion (DPD) algorithm, we can iteratively adjust the input pulse to fine-tune and optimize the output pulse bandwidth. Ultimately, the UWB transmitter can generate software-defined pulses up to 8.3 GHz and detect 0.25-mm surface objects with a 3-dB area of 1.4 cm.
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