Article(id=1315741636513092202, tenantId=1146029695717560320, journalId=1315121910733963395, issueId=1315741514865689424, articleNumber=null, orderNo=null, doi=10.3788/gzxb20265503.0355113, pmid=null, cstr=32255.14.gzxb20265503.0355113, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1754064000000, receivedDateStr=2025-08-02, revisedDate=null, revisedDateStr=null, acceptedDate=1757520000000, acceptedDateStr=2025-09-11, onlineDate=1791626851442, onlineDateStr=2026-10-10, pubDate=1774368000000, pubDateStr=2026-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791626851442, onlineIssueDateStr=2026-10-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791626851442, creator=13701087609, updateTime=1791626851442, updator=13701087609, issue=Issue{id=1315741514865689424, tenantId=1146029695717560320, journalId=1315121910733963395, year='2026', volume='55', issue='3', pageStart='1', pageEnd='378', issueExtLink='null', onlineDate='null', pubDate='1774368000000', pubDateStr='2026-03-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1791626822438, creator='13701087609', updateTime=1791626932547, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1315741977111540218, tenantId=1146029695717560320, journalId=1315121910733963395, issueId=1315741514865689424, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1315741977111540219, tenantId=1146029695717560320, journalId=1315121910733963395, issueId=1315741514865689424, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=194, endPage=203, ext={EN=ArticleExt(id=1315741636727001708, articleId=1315741636513092202, tenantId=1146029695717560320, journalId=1315121910733963395, language=EN, title=Phase Noise Suppression System for Microwave Photonic FMCW Radar Based on Deskew Filtering, columnId=1315741516451136338, journalTitle=Acta Photonica Sinica, columnName=Special Issue for Microwave Photonics, runingTitle=null, highlight=null, articleAbstract=
Frequency-Modulated Continuous-Wave (FMCW) radar is widely used in military, autonomous driving, and other fields for its high resolution, low power consumption, and strong anti-interference. However, traditional microwave electronic radars fail to meet broadband signal generation/processing needs, leading to the development of microwave photonic radar. By combining photonics and electronics, it overcomes the “electronic bottleneck,” with optical frequency multiplication and dechirping reception architectures gaining attention for large bandwidth and simple structure. Nevertheless, in this architecture, frequency multiplication degrades phase noise (by 20 log₁₀(n) dB for multiplication factor n), while electro-optic/optoelectronic conversion worsens it. Phase noise impairs radar accuracy, resolution, and anti-interference, limiting broadband advantages. Existing suppression technologies for microwave photonic radar often suffer from complexity, high cost, or new noise introduction, demanding more effective compensation.
This paper proposes a phase noise compensation scheme for microwave photonic FMCW radar using deskew filtering. The system adopts an optical quadrupling structure (boosting distance resolution) plus reference delay and mixing branches. The baseband linear frequency-modulated (LFM) signal splits into two paths: one drives the microwave photonic quadrupling module to generate a transmitted signal (4× baseband frequency/bandwidth, 4× phase noise), whose echo is processed via a microwave photonic mixer to get an echo dechirped signal with phase jitter; the other undergoes reference delay/mixing to produce a reference dechirped signal. Deskew filtering compensates the echo dechirped signal as follows: apply Hilbert transforms to both signals for complex signals, estimate phase noise via the reference, remove phase noise's delay dependence in the echo using the deskew filter, and eliminate phase noise to mitigate radar performance impacts.
An experimental setup was built to verify the feasibility of the proposed scheme. The initial frequency of the baseband linear frequency-modulated signal was 5 GHz, with a bandwidth of 100 MHz. After passing through the microwave photonic quadrupling module, a quadrupled frequency signal in the range of 20~20.4 GHz was generated, effectively expanding the bandwidth. The reference and echo dechirped signals were collected and processed using the deskew filtering algorithm. To evaluate the effectiveness of phase noise compensation in the dechirped echo signal, we analyze two key aspects: first, comparing the stability of the half-period of the dechirped echo signal before and after compensation, and second, examining its phase noise characteristics. A reference group processed using the equal phase interval sampling method was introduced for comparative analysis. The results show that before compensation, the standard deviation of the half-period was 0.54 ns. After compensation with the equal phase interval sampling method, this value decreased to approximately 0.24 ns. Further compensation using the deskew filtering method reduced the standard deviation to 0.15 ns, representing a 3.6 times improvement in stability compared to the pre-compensation state. This indicates that the phase noise compensation achieved through the deskew filtering method significantly enhances the stability of the half-period of the dechirped echo signal. Regarding phase noise characteristics, the experimental results demonstrate that within the frequency offset range of less than 10 kHz, the deskew filtering method outperforms the equal phase interval sampling method in suppressing phase noise, resulting in a lower phase noise level in the processed signal. Additionally, a time-frequency analysis was conducted on the signals before and after compensation to compare the range profiles. The results reveal that the target energy in the compensated range profile becomes more concentrated, and the deviation range of the distance measurement results is effectively suppressed. Specifically, the distance corresponding to 10 dB bandwidth decreased from 49.57 m (pre-compensation) to 41.28 m (post-compensation), while the standard deviation of distance measurement results reduced from 0.97 m (pre-compensation) to 0.78 m (post-compensation). Collectively, these findings demonstrate that the deskew filtering method effectively improves the range resolution and distance measurement stability of the radar system.
, authors=Jintao ZHU, Jingzhan SHI, Dan ZHU, Qiang LIU, Dongdong LIN, Na ZHANG, Bindong GAO, Yiping WANG, authorsList=Jintao ZHU, Jingzhan SHI, Dan ZHU, Qiang LIU, Dongdong LIN, Na ZHANG, Bindong GAO, Yiping WANG, authorCompany=null, correspAuthors=Jingzhan SHI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1315741639998558848, articleId=1315741636513092202, tenantId=1146029695717560320, journalId=1315121910733963395, language=CN, title=基于去偏斜滤波的微波光子调频连续波雷达相位噪声抑制系统, columnId=1315741519718494875, journalTitle=光子学报, columnName=“微波光子学”专题, runingTitle=null, highlight=null, articleAbstract=
提出并验证了一种基于去偏斜滤波的微波光子调频连续波雷达相位噪声抑制系统。该系统采用光四倍频结构,以提升雷达的距离分辨率。引入参考延时和混频支路,获取参考去斜信号,并结合去偏斜滤波算法,对回波去斜信号中的相位抖动进行有效补偿。实验结果表明,该系统成功实现了基带线性调频信号的四倍频,显著扩展了雷达信号的带宽。在相位噪声补偿后,回波去斜信号的半周期稳定性提高了3.6倍,相位噪声得到了有效抑制。同时,距离像中目标能量更加集中,雷达的测距精度和分辨率显著提升,从而验证了去偏斜滤波方法在抑制微波光子雷达相位噪声方面的有效性。
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1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023, bio={"content":"
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1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023)])]), Author(id=1315741640623510155, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=shijz@nnu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1315741640690619021, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, authorId=1315741640623510155, language=EN, stringName=Jingzhan SHI, firstName=Jingzhan, middleName=null, lastName=SHI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=
1Nanjing Normal University, School of Computer and Electronic Information, Ministry of Education Key Laboratory of NSLSCS, Nanjing 210023, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1315741640757727886, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, authorId=1315741640623510155, language=CN, stringName=史经展, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=
1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1315741640250217090, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, xref=1, ext=[AuthorCompanyExt(id=1315741640258605699, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, companyId=1315741640250217090, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1Nanjing Normal University, School of Computer and Electronic Information, Ministry of Education Key Laboratory of NSLSCS, Nanjing 210023, China), AuthorCompanyExt(id=1315741640266994308, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, companyId=1315741640250217090, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023)])]), Author(id=1315741640833225360, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1315741640908722834, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, authorId=1315741640833225360, language=EN, stringName=Dan ZHU, firstName=Dan, middleName=null, lastName=ZHU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=
1Nanjing Normal University, School of Computer and Electronic Information, Ministry of Education Key Laboratory of NSLSCS, Nanjing 210023, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1315741641013580435, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, authorId=1315741640833225360, language=CN, stringName=朱丹, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=
1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1315741640250217090, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, xref=1, ext=[AuthorCompanyExt(id=1315741640258605699, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, companyId=1315741640250217090, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1Nanjing Normal University, School of Computer and Electronic Information, Ministry of Education Key Laboratory of NSLSCS, Nanjing 210023, China), AuthorCompanyExt(id=1315741640266994308, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, companyId=1315741640250217090, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023)])]), Author(id=1315741641072300693, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1315741641143603863, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, authorId=1315741641072300693, language=EN, stringName=Qiang LIU, firstName=Qiang, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=
1Nanjing Normal University, School of Computer and Electronic Information, Ministry of Education Key Laboratory of NSLSCS, Nanjing 210023, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1315741641223295640, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, authorId=1315741641072300693, language=CN, stringName=刘强, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=
1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1315741640250217090, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, xref=1, ext=[AuthorCompanyExt(id=1315741640258605699, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, companyId=1315741640250217090, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023)])]), Author(id=1315741641294598810, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1315741641382679196, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, authorId=1315741641294598810, language=EN, stringName=Dongdong LIN, firstName=Dongdong, middleName=null, lastName=LIN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=
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1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1315741640250217090, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, xref=1, ext=[AuthorCompanyExt(id=1315741640258605699, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, companyId=1315741640250217090, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1Nanjing Normal University, School of Computer and Electronic Information, Ministry of Education Key Laboratory of NSLSCS, Nanjing 210023, China), AuthorCompanyExt(id=1315741640266994308, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, companyId=1315741640250217090, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023)])]), Author(id=1315741641508508319, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1315741641579811489, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, authorId=1315741641508508319, language=EN, stringName=Na ZHANG, firstName=Na, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=
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12(1): 4397., articleTitle=A low-noise photonic heterodyne synthesizer and its application to millimeter-wave radar, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1315741640250217090, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, xref=1, ext=[AuthorCompanyExt(id=1315741640258605699, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, companyId=1315741640250217090, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1Nanjing Normal University, School of Computer and Electronic Information, Ministry of Education Key Laboratory of NSLSCS, Nanjing 210023, China), AuthorCompanyExt(id=1315741640266994308, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, companyId=1315741640250217090, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1南京师范大学 计算机与电子信息学院 大规模复杂系统数值模拟教育部重点实验室, 南京 210023)])], figs=[ArticleFig(id=1315741644654236345, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=EN, label=Fig.1, caption=
System for phase noise suppression in MWP FMCW Radar based on deskew filter, figureFileSmall=2hoci5xudanEw4EUEBuWvA==, figureFileBig=UVJFZnGTOkpTylfDBAJPRQ==, tableContent=null), ArticleFig(id=1315741644717150906, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=CN, label=图1, caption=
基于去偏斜滤波的微波光子FMCW雷达相位噪声抑制系统LD: Laser Diode; DPMZM: Dual-Parallel Mach-Zehnder Modulator; MZM: Mach-Zehnder Modulator; PD: Photodetector; LNA: Low Noise Amplifier; OBPF: Optical Bandpass Filter; ODL: Optical Delay Line; LPF: Lowpass Filter; ADC: Analog-to-Digital Converter; DSP: Digital Signal Processor
, figureFileSmall=2hoci5xudanEw4EUEBuWvA==, figureFileBig=UVJFZnGTOkpTylfDBAJPRQ==, tableContent=null), ArticleFig(id=1315741644935254716, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=EN, label=Fig.2, caption=
Algorithm flow, figureFileSmall=vkcPxepn7HmVjcV0DGXDXg==, figureFileBig=2yJhAccgJBbLXiISASm+EQ==, tableContent=null), ArticleFig(id=1315741645014946494, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=CN, label=图2, caption=
算法流程, figureFileSmall=vkcPxepn7HmVjcV0DGXDXg==, figureFileBig=2yJhAccgJBbLXiISASm+EQ==, tableContent=null), ArticleFig(id=1315741645094638271, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=EN, label=Fig.3, caption=
Experimental setup of the microwave photonic FMCW radar phase noise suppression system based on deskew filtering, figureFileSmall=3vuaMERhXLqFDBu16mEjEA==, figureFileBig=pu7kQizsSzVd2dUl3HHhzw==, tableContent=null), ArticleFig(id=1315741645186912960, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=CN, label=图3, caption=
基于去偏斜滤波的微波光子FMCW雷达相位噪声抑制系统实验装置EDFA: Erbium-doped Fiber Amplifier; OBPF: Optical Bandpass Filter
, figureFileSmall=3vuaMERhXLqFDBu16mEjEA==, figureFileBig=pu7kQizsSzVd2dUl3HHhzw==, tableContent=null), ArticleFig(id=1315741645262410434, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=EN, label=Fig.4, caption=
Verification of microwave photonic quadruple-frequency function; (a) Time-frequency diagram of the baseband LFM signal; (b) Output optical spectrum of DPMZM; (c) Spectrum of the quadruple-frequency signal, figureFileSmall=ztT1hHrP6zBjEpkQlCwT5g==, figureFileBig=Sybr/hp4BEdLyMowj+3zDw==, tableContent=null), ArticleFig(id=1315741645325324995, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=CN, label=图4, caption=
微波光子四倍频功能验证。(a)基带LFM信号时频图;(b)DPMZM输出光谱;(c)四倍频信号频谱, figureFileSmall=ztT1hHrP6zBjEpkQlCwT5g==, figureFileBig=Sybr/hp4BEdLyMowj+3zDw==, tableContent=null), ArticleFig(id=1315741645392433860, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=EN, label=Fig.5, caption=
Time-domain waveforms of dechirped signals and phase noise estimates. (a) Reference dechirped signal and echo dechirped signal; (b) Phase noise estimates of the reference dechirped signal; (c) Waveforms of the echo dechirped signal before and after compensation, figureFileSmall=pvKr2bEmkNv9F7UGRBzzwg==, figureFileBig=VOqFD1/OeZBoBiY7KoAFdw==, tableContent=null), ArticleFig(id=1315741645467931333, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=CN, label=图5, caption=
去斜信号与相位抖动估计值的时域波形。(a)参考去斜与回波去斜信号;(b)参考去斜信号相位抖动估计值;(c)补偿前后回波去斜信号波形, figureFileSmall=pvKr2bEmkNv9F7UGRBzzwg==, figureFileBig=VOqFD1/OeZBoBiY7KoAFdw==, tableContent=null), ArticleFig(id=1315741645572788935, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=EN, label=Fig.6, caption=
Phase stability of the echo dechirped signals before and after compensation. (a) Half-period width; (b) Phase noise, figureFileSmall=pV54sl1Qr/ZJehm9Du6d8w==, figureFileBig=z39flEnukwuWJaXMR57LVA==, tableContent=null), ArticleFig(id=1315741645669257928, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=CN, label=图6, caption=
补偿前后回波去斜信号的相位稳定性。(a)半周期宽度;(b)相位噪声, figureFileSmall=pV54sl1Qr/ZJehm9Du6d8w==, figureFileBig=z39flEnukwuWJaXMR57LVA==, tableContent=null), ArticleFig(id=1315741645870584522, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=EN, label=Fig.7, caption=
Range profile with and without compensation. (a) Range profile without compensation; (b) Range profile with compensation, figureFileSmall=q+gs/s+4u6Z3ihzUP+U9mw==, figureFileBig=KaRBaFMC1oQozeNV5lvqKA==, tableContent=null), ArticleFig(id=1315741645941887691, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=CN, label=图7, caption=
补偿前后距离像。(a)补偿前的距离像;(b)补偿后的距离像, figureFileSmall=q+gs/s+4u6Z3ihzUP+U9mw==, figureFileBig=KaRBaFMC1oQozeNV5lvqKA==, tableContent=null), ArticleFig(id=1315741646017385164, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=EN, label=Table 1, caption=
Devices and their parameters used in the experiment
, figureFileSmall=null, figureFileBig=null, tableContent=
| Device | Manufacturer, version | Specifications |
|---|
| LD | EXFO, FLS-2800 | Wavelength: 1 550.12 nm Power: 10 dBm |
| 90° Hybrid | SHW, SHWHB-002001800 | Frequency: 2~18 GHz |
| DPMZM | AFR, 40G-IQ-XT | 40 GHz/C+L band/1.85 mm |
| MZM1 | Fujitsu, FTM7937 | ≥25 GHz/C band/2.92 mm |
| MZM2 | Newkey Photonics, NK7937 | ≥25 GHz/C band/2.92 mm |
| ODL1 | Newkey Photonics, DF1600 | Delay: 8 000 ns |
| ODL2(reference path) | Newkey Photonics, DF160 | Delay: 800 ns |
| PD1 | HLT, PD-M-40-0-1-FA | Bandwidth: 0~40 GHz |
| PD2 | Conquer, PD-20G21442 | Bandwidth: 0~20 GHz |
| PD3 | Conquer, PD-20G21442 | Bandwidth: 0~20 GHz |
| Mixer | Marki, IQLMP | Frequency: 1.5~6 GHz |
| OBPF | Luster, WaveShaper 4000A | Wavelength: 1 528~1 567 nm Resolution bandwidth: 10 GHz |
| Oscilloscope | RIGOL, DS2302A | Sampling rate: 2 GSa/s |
), ArticleFig(id=1315741646101271245, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315741636513092202, language=CN, label=表1, caption=
实验所用器件及其参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| Device | Manufacturer, version | Specifications |
|---|
| LD | EXFO, FLS-2800 | Wavelength: 1 550.12 nm Power: 10 dBm |
| 90° Hybrid | SHW, SHWHB-002001800 | Frequency: 2~18 GHz |
| DPMZM | AFR, 40G-IQ-XT | 40 GHz/C+L band/1.85 mm |
| MZM1 | Fujitsu, FTM7937 | ≥25 GHz/C band/2.92 mm |
| MZM2 | Newkey Photonics, NK7937 | ≥25 GHz/C band/2.92 mm |
| ODL1 | Newkey Photonics, DF1600 | Delay: 8 000 ns |
| ODL2(reference path) | Newkey Photonics, DF160 | Delay: 800 ns |
| PD1 | HLT, PD-M-40-0-1-FA | Bandwidth: 0~40 GHz |
| PD2 | Conquer, PD-20G21442 | Bandwidth: 0~20 GHz |
| PD3 | Conquer, PD-20G21442 | Bandwidth: 0~20 GHz |
| Mixer | Marki, IQLMP | Frequency: 1.5~6 GHz |
| OBPF | Luster, WaveShaper 4000A | Wavelength: 1 528~1 567 nm Resolution bandwidth: 10 GHz |
| Oscilloscope | RIGOL, DS2302A | Sampling rate: 2 GSa/s |
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