基于直接数字合成和乘频的机载FMCW雪探测雷达线性啁啾发生器

2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI:10.1109/MWSYM.2014.6848668

D. Gomez-Garcia, C. Leuschen, F. Rodríguez‐Morales, Jie-Bang Yan, P. Gogineni

{"title":"基于直接数字合成和乘频的机载FMCW雪探测雷达线性啁啾发生器","authors":"D. Gomez-Garcia, C. Leuschen, F. Rodríguez‐Morales, Jie-Bang Yan, P. Gogineni","doi":"10.1109/MWSYM.2014.6848668","DOIUrl":null,"url":null,"abstract":"This paper presents a linear chirp generator for synthesizing ultra-wideband signals for use in an FM-CW radar being used for airborne snow thickness measurements. Ultra-wideband chirp generators with rigorous linearity requirements are needed for long-range FMCW radars. The chirp generator is composed of a direct digital synthesizer and a frequency multiplier chain. The implementation approach combines recently available high-speed digital, mixed signal, and microwave components along with a frequency pre-distortion technique to synthesize a 6-GHz chirp signal over 240 μs with a <;0.02 MHz/μs deviation from linearity.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"26","resultStr":"{\"title\":\"Linear chirp generator based on direct digital synthesis and frequency multiplication for airborne FMCW snow probing radar\",\"authors\":\"D. Gomez-Garcia, C. Leuschen, F. Rodríguez‐Morales, Jie-Bang Yan, P. Gogineni\",\"doi\":\"10.1109/MWSYM.2014.6848668\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a linear chirp generator for synthesizing ultra-wideband signals for use in an FM-CW radar being used for airborne snow thickness measurements. Ultra-wideband chirp generators with rigorous linearity requirements are needed for long-range FMCW radars. The chirp generator is composed of a direct digital synthesizer and a frequency multiplier chain. The implementation approach combines recently available high-speed digital, mixed signal, and microwave components along with a frequency pre-distortion technique to synthesize a 6-GHz chirp signal over 240 μs with a <;0.02 MHz/μs deviation from linearity.\",\"PeriodicalId\":262816,\"journal\":{\"name\":\"2014 IEEE MTT-S International Microwave Symposium (IMS2014)\",\"volume\":\"25 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"26\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 IEEE MTT-S International Microwave Symposium (IMS2014)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.2014.6848668\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2014.6848668","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 26

摘要

本文介绍了一种用于机载雪厚测量的调频连续波雷达的超宽带信号合成的线性啁啾发生器。远程FMCW雷达需要具有严格线性要求的超宽带啁啾发生器。啁啾发生器由直接数字合成器和乘频链组成。该实现方法结合了目前可用的高速数字、混合信号和微波组件以及频率预失真技术，合成了超过240 μs的6 ghz啁啾信号，线性度偏差< 0.02 MHz/μs。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Linear chirp generator based on direct digital synthesis and frequency multiplication for airborne FMCW snow probing radar

This paper presents a linear chirp generator for synthesizing ultra-wideband signals for use in an FM-CW radar being used for airborne snow thickness measurements. Ultra-wideband chirp generators with rigorous linearity requirements are needed for long-range FMCW radars. The chirp generator is composed of a direct digital synthesizer and a frequency multiplier chain. The implementation approach combines recently available high-speed digital, mixed signal, and microwave components along with a frequency pre-distortion technique to synthesize a 6-GHz chirp signal over 240 μs with a <;0.02 MHz/μs deviation from linearity.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2014 IEEE MTT-S International Microwave Symposium (IMS2014)

自引率

0.00%

发文量