{"title":"高精度微波信号多普勒频移和到达角的同时准确测量","authors":"Jing Gao, J. Ma","doi":"10.1080/01468030.2022.2145530","DOIUrl":null,"url":null,"abstract":"ABSTRACT A photonic scheme for simultaneously measuring both the Doppler frequency shift (DFS) and angle of arrival (AOA) of a microwave signal based on a polarization division multiplexing dual-parallel Mach-Zehnder modulator (PDM-DPMZM) is proposed. In our scheme, the single-sideband (SSB) modulated signals via PDM-DPMZM are divided into two branches, and so two ac power-phase mapping functions with higher slopes are formed by different polarization processing. Since one ac power-phase curve serves as a calibration line, the system can realize unambiguous AOA measurement with the phase range of −180°~180°. The value and direction of DFS can only be determined using an electrical spectrum analyzer (ESA). In addition, the scheme has a larger operating bandwidth because no filter is required. Simulation results show that the AOA from −83.92° to 83.92° is measured with an error of ±0.9°, and the DFS measurement within ±100 KHz is realized with an error less than ±5 × 10−3 Hz. The characteristics of low error, high precision, and wide bandwidth are important for microwave signal detection.","PeriodicalId":50449,"journal":{"name":"Fiber and Integrated Optics","volume":"128 1","pages":"96 - 112"},"PeriodicalIF":2.3000,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Simultaneous and Unambiguous Measurement for Doppler Frequency Shift and Angle of Arrival of a Microwave Signal with High Precision\",\"authors\":\"Jing Gao, J. Ma\",\"doi\":\"10.1080/01468030.2022.2145530\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT A photonic scheme for simultaneously measuring both the Doppler frequency shift (DFS) and angle of arrival (AOA) of a microwave signal based on a polarization division multiplexing dual-parallel Mach-Zehnder modulator (PDM-DPMZM) is proposed. In our scheme, the single-sideband (SSB) modulated signals via PDM-DPMZM are divided into two branches, and so two ac power-phase mapping functions with higher slopes are formed by different polarization processing. Since one ac power-phase curve serves as a calibration line, the system can realize unambiguous AOA measurement with the phase range of −180°~180°. The value and direction of DFS can only be determined using an electrical spectrum analyzer (ESA). In addition, the scheme has a larger operating bandwidth because no filter is required. Simulation results show that the AOA from −83.92° to 83.92° is measured with an error of ±0.9°, and the DFS measurement within ±100 KHz is realized with an error less than ±5 × 10−3 Hz. The characteristics of low error, high precision, and wide bandwidth are important for microwave signal detection.\",\"PeriodicalId\":50449,\"journal\":{\"name\":\"Fiber and Integrated Optics\",\"volume\":\"128 1\",\"pages\":\"96 - 112\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2022-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fiber and Integrated Optics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1080/01468030.2022.2145530\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fiber and Integrated Optics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1080/01468030.2022.2145530","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
Simultaneous and Unambiguous Measurement for Doppler Frequency Shift and Angle of Arrival of a Microwave Signal with High Precision
ABSTRACT A photonic scheme for simultaneously measuring both the Doppler frequency shift (DFS) and angle of arrival (AOA) of a microwave signal based on a polarization division multiplexing dual-parallel Mach-Zehnder modulator (PDM-DPMZM) is proposed. In our scheme, the single-sideband (SSB) modulated signals via PDM-DPMZM are divided into two branches, and so two ac power-phase mapping functions with higher slopes are formed by different polarization processing. Since one ac power-phase curve serves as a calibration line, the system can realize unambiguous AOA measurement with the phase range of −180°~180°. The value and direction of DFS can only be determined using an electrical spectrum analyzer (ESA). In addition, the scheme has a larger operating bandwidth because no filter is required. Simulation results show that the AOA from −83.92° to 83.92° is measured with an error of ±0.9°, and the DFS measurement within ±100 KHz is realized with an error less than ±5 × 10−3 Hz. The characteristics of low error, high precision, and wide bandwidth are important for microwave signal detection.
期刊介绍：
Fiber and Integrated Optics , now incorporating the International Journal of Optoelectronics, is an international bimonthly journal that disseminates significant developments and in-depth surveys in the fields of fiber and integrated optics. The journal is unique in bridging the major disciplines relevant to optical fibers and electro-optical devices. This results in a balanced presentation of basic research, systems applications, and economics. For more than a decade, Fiber and Integrated Optics has been a valuable forum for scientists, engineers, manufacturers, and the business community to exchange and discuss techno-economic advances in the field.
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