Article(id=1315743640249544830, tenantId=1146029695717560320, journalId=1315121910733963395, issueId=1315743622176288781, articleNumber=null, orderNo=null, doi=10.3788/gzxb20265502.0212003, pmid=null, cstr=32255.14.gzxb20265502.0212003, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1753632000000, receivedDateStr=2025-07-28, revisedDate=null, revisedDateStr=null, acceptedDate=1763395200000, acceptedDateStr=2025-11-18, onlineDate=1791627329169, onlineDateStr=2026-10-10, pubDate=1771948800000, pubDateStr=2026-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791627329169, onlineIssueDateStr=2026-10-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791627329169, creator=13701087609, updateTime=1791627329169, updator=13701087609, issue=Issue{id=1315743622176288781, tenantId=1146029695717560320, journalId=1315121910733963395, year='2026', volume='55', issue='2', pageStart='1', pageEnd='326', issueExtLink='null', onlineDate='null', pubDate='1771948800000', pubDateStr='2026-02-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791627324861, creator='13701087609', updateTime=1791627390701, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1315743898396381488, tenantId=1146029695717560320, journalId=1315121910733963395, issueId=1315743622176288781, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1315743898396381489, tenantId=1146029695717560320, journalId=1315121910733963395, issueId=1315743622176288781, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=29, endPage=40, ext={EN=ArticleExt(id=1315743640476037247, articleId=1315743640249544830, tenantId=1146029695717560320, journalId=1315121910733963395, language=EN, title=Design of High-precision Timing System for Detonation Point Measurement, columnId=1315741666489774715, journalTitle=Acta Photonica Sinica, columnName=Instrumentation, Measurement and Metrology, runingTitle=null, highlight=null, articleAbstract=
With the rapid development of modern weapon systems, high-precision measurement of explosion timing has become a key factor in evaluating weapon effectiveness and supporting tactical decision-making. To address the limitations of existing detonation timing measurement systems—such as inadequate accuracy, limited detection capability, and high cost,this paper presents the design of a high-precision explosion timing measurement system. The proposed system is capable of accurately capturing the instant of projectile detonation, providing a unified time reference for various test-range measurement and control instruments such as high-speed cameras and theodolites. It further supports the analysis of explosion parameters and damage assessment, enabling rapid localization of explosion timing points within large-scale datasets.
The system consists of five major components an optical signal acquisition and conversion circuit, an analog signal amplification module, a digital processing core, an analog-to-digital conversion subsystem, and a GPS timing unit. In the optical detection stage, a silicon photodiode BPW20 with a peak sensitivity at 920 nm is selected and paired with an AD825 transimpedance amplifier to perform photoelectric signal acquisition and initial amplification. This configuration offers low dark current and low noise voltage, ensuring stable operation under high signal-to-noise ratio conditions. To further enhance long-range detection capability, a condenser lens optimized using Zemax was incorporated into the optical structure, significantly improving the convergence of incident light. Experimental results show that the addition of the condenser lens increases detection capability by approximately ninefold.
To improve timing accuracy, the system adopts a GPS-disciplined local clock architecture, using the 1 PPS signal as the reference. Through hardware-software co-design, the system obtains and maintains synchronization with the GPS time base. An initial time offset of about 7 μs was observed; to eliminate this error, an All-digital Phase-locked Loop (ADPLL) structure was integrated. By employing phase detection and a PI adaptive regulation mechanism, the local clock is precisely aligned with the 1 PPS signal. Oscilloscope measurements after synchronization indicate that the residual timing error is less than 50 ns, thereby achieving high-precision timekeeping based on a standard crystal oscillator while effectively reducing system cost.
In indoor simulation experiments, the system successfully captured transient LED emissions within a range of 5~30 m, verifying its sensitivity and timing accuracy. In outdoor field tests, the system effectively detected the flash produced by firecracker explosions at distances beyond 100 m and accurately recorded the time corresponding to the optical intensity peak. Comprehensive experimental results demonstrate that the proposed system provides precise, real-time, and reliable detection of explosion light and timing, meeting the requirements of modern test-range applications and showing broad engineering potential.
Future research will focus on system miniaturization and low-power design to enable deployment on mobile platforms such as UAVs, thereby extending its applicability within modern test-range systems.
, authors=Wenda SHAO, Yaowen LV, Huidong GUO, Fangyu SUN, Shubin HUA, Zhaolong HE, authorsList=Wenda SHAO, Yaowen LV, Huidong GUO, Fangyu SUN, Shubin HUA, Zhaolong HE, authorCompany=null, correspAuthors=Yaowen LV, 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=1315743645022662816, articleId=1315743640249544830, tenantId=1146029695717560320, journalId=1315121910733963395, language=CN, title=高精度炸点时间测量系统设计, columnId=1315741666716267133, journalTitle=光子学报, columnName=仪器,测量,度量学, runingTitle=null, highlight=null, articleAbstract=
针对现有炸点时间测量系统存在的测量精度低、探测能力弱和成本高等问题,设计了一套高精度炸点时间测量系统。该系统选用峰值波长920 nm硅光电二极管BPW20和低噪声AD825跨阻放大器完成光电信号的采集,同时在系统的光学设计中引入聚光镜,增强光线聚焦能力,理论与实验结果表明系统探测能力提升了9倍。为提升系统的时间测量精度驯服本地时钟,基于全数字锁相环(All-digital Phase-Locked Loop ADPLL)算法,通过相位检测和PI自适应调整,将本地时钟对齐1 PPS,误差控制在50 ns以内,实现了普通晶振高精度守时,降低系统设计成本。室内LED实验和室外鞭炮爆炸实验,验证了本系统能够实现对炸点时刻的高精度测量。
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2022,
22(9): 3135-3135., articleTitle=FPGA-based autonomous GPS-disciplined oscillatorsfor wireless sensor network nodes, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1315743645249155233, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, xref=1, ext=[AuthorCompanyExt(id=1315743645257543842, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, companyId=1315743645249155233, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1Key Laboratory of Optoelectronic Measurement and Control and Optical Information Transmission Technology, Ministry of Education, School of Electro-Optical Engineering, Changchun University of Science and Technology,Changchun 130013, China,), AuthorCompanyExt(id=1315743645261738147, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, companyId=1315743645249155233, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1长春理工大学 光电工程学院,光电测控与光信息传输技术教育部重点实验室,长春 130013)])], figs=[ArticleFig(id=1315743649250521292, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.1, caption=
System hardware block diagram, figureFileSmall=WLFSFyYqURAvVqPd4/vo+A==, figureFileBig=VVCavvRXJY7GCTugOlmjbA==, tableContent=null), ArticleFig(id=1315743649334407373, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图1, caption=
系统硬件框图, figureFileSmall=WLFSFyYqURAvVqPd4/vo+A==, figureFileBig=VVCavvRXJY7GCTugOlmjbA==, tableContent=null), ArticleFig(id=1315743649573482702, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.2, caption=
Solar spectral diagram, figureFileSmall=fQL+Ms9qsh06wIwlflXJFQ==, figureFileBig=ULhoNw5Q2H/pkEjrQkdXog==, tableContent=null), ArticleFig(id=1315743649640591567, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图2, caption=
太阳光谱图, figureFileSmall=fQL+Ms9qsh06wIwlflXJFQ==, figureFileBig=ULhoNw5Q2H/pkEjrQkdXog==, tableContent=null), ArticleFig(id=1315743649699311824, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.3, caption=
Optical path structure, figureFileSmall=qwkuUfnMBtJKuusBQFqT+w==, figureFileBig=ume00LpUC0vay+kFmTagnQ==, tableContent=null), ArticleFig(id=1315743649770614993, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图3, caption=
光路结构, figureFileSmall=qwkuUfnMBtJKuusBQFqT+w==, figureFileBig=ume00LpUC0vay+kFmTagnQ==, tableContent=null), ArticleFig(id=1315743649858695378, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.4, caption=
GPS taming local clock, figureFileSmall=iVzmlWzPKqqWxNxOEklVJw==, figureFileBig=1rSW0URIMOX4qonkQgxQFg==, tableContent=null), ArticleFig(id=1315743649946775763, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图4, caption=
GPS驯服本地时钟, figureFileSmall=iVzmlWzPKqqWxNxOEklVJw==, figureFileBig=1rSW0URIMOX4qonkQgxQFg==, tableContent=null), ArticleFig(id=1315743650030661844, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.5, caption=
GPS message parsing result, figureFileSmall=wawfRVG05F39UIFY88oqaA==, figureFileBig=Gr5sZpMfBzkmYQ4P/0l7QQ==, tableContent=null), ArticleFig(id=1315743650101965013, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图5, caption=
GPS报文解析结果, figureFileSmall=wawfRVG05F39UIFY88oqaA==, figureFileBig=Gr5sZpMfBzkmYQ4P/0l7QQ==, tableContent=null), ArticleFig(id=1315743650173268182, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.6, caption=
Local time leading by 1 PPS, figureFileSmall=Ri3+yKbBXXlMBu/vksqDBQ==, figureFileBig=2mJGsZltg/QiyfLptvfbQg==, tableContent=null), ArticleFig(id=1315743650261348567, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图6, caption=
本地时间超前1 PPS, figureFileSmall=Ri3+yKbBXXlMBu/vksqDBQ==, figureFileBig=2mJGsZltg/QiyfLptvfbQg==, tableContent=null), ArticleFig(id=1315743650332651736, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.7, caption=
Error correction architecture diagram, figureFileSmall=2snRNeq24aantw7pi0LPxA==, figureFileBig=8Sdjcs8R9BWjBF6XF4txng==, tableContent=null), ArticleFig(id=1315743650416537817, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图7, caption=
误差修正结构图, figureFileSmall=2snRNeq24aantw7pi0LPxA==, figureFileBig=8Sdjcs8R9BWjBF6XF4txng==, tableContent=null), ArticleFig(id=1315743650500423898, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.8, caption=
Analysis of local time error, figureFileSmall=x9gNOaSI+jGv525qi2LK0g==, figureFileBig=5RhqVO49QG+shS1Ch+v4AQ==, tableContent=null), ArticleFig(id=1315743650567532763, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图8, caption=
本地时间误差, figureFileSmall=x9gNOaSI+jGv525qi2LK0g==, figureFileBig=5RhqVO49QG+shS1Ch+v4AQ==, tableContent=null), ArticleFig(id=1315743650638835932, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.9, caption=
Local time aligned 1 PPS rising edge, figureFileSmall=4b73RuEWRpHjYBASUYNgBQ==, figureFileBig=oeCdsw9yOF6GIxvyNlJJDQ==, tableContent=null), ArticleFig(id=1315743650697556189, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图9, caption=
本地时间对齐1 PPS上升沿, figureFileSmall=4b73RuEWRpHjYBASUYNgBQ==, figureFileBig=oeCdsw9yOF6GIxvyNlJJDQ==, tableContent=null), ArticleFig(id=1315743650781442270, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.10, caption=
Performance comparison with and without a concentrator lens, figureFileSmall=qwQlutB6OUW2BXS5kzeDFg==, figureFileBig=tEBBdX/AQ+KiM/Qvgq5JeA==, tableContent=null), ArticleFig(id=1315743650848551135, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图10, caption=
聚光镜提升效果对比, figureFileSmall=qwQlutB6OUW2BXS5kzeDFg==, figureFileBig=tEBBdX/AQ+KiM/Qvgq5JeA==, tableContent=null), ArticleFig(id=1315743650919854304, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.11, caption=
Before error correction, figureFileSmall=k/6VTZ9i1lMxlGKPy1DIFQ==, figureFileBig=fvu94tBOGP8AZxBD5Wmqjw==, tableContent=null), ArticleFig(id=1315743650982768865, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图11, caption=
误差未修正前, figureFileSmall=k/6VTZ9i1lMxlGKPy1DIFQ==, figureFileBig=fvu94tBOGP8AZxBD5Wmqjw==, tableContent=null), ArticleFig(id=1315743651075043554, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.12, caption=
After error correction, figureFileSmall=litUzXq5bnMh5nOXq6Zn2g==, figureFileBig=DUCnPqkVe/EUFEdAtcDtkg==, tableContent=null), ArticleFig(id=1315743651146346723, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图12, caption=
误差修正后, figureFileSmall=litUzXq5bnMh5nOXq6Zn2g==, figureFileBig=DUCnPqkVe/EUFEdAtcDtkg==, tableContent=null), ArticleFig(id=1315743651213455588, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.13, caption=
Simulated explosion peak time, figureFileSmall=fot0yPq2IWQp3XjFTozDcQ==, figureFileBig=sBCAZeXbUD0AZEKoNXr64Q==, tableContent=null), ArticleFig(id=1315743651297341669, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图13, caption=
模拟爆炸尖峰时间, figureFileSmall=fot0yPq2IWQp3XjFTozDcQ==, figureFileBig=sBCAZeXbUD0AZEKoNXr64Q==, tableContent=null), ArticleFig(id=1315743651372839142, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.14, caption=
Comparison of theoretical and test values in indoor testing, figureFileSmall=dQzDIVPptDR3xJoLC6n8rg==, figureFileBig=nuaUq2pEt5fHhIxCItyjgw==, tableContent=null), ArticleFig(id=1315743651452530919, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图14, caption=
室内测试理论值与测试值对比, figureFileSmall=dQzDIVPptDR3xJoLC6n8rg==, figureFileBig=nuaUq2pEt5fHhIxCItyjgw==, tableContent=null), ArticleFig(id=1315743651528028392, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.15, caption=
Experimental setup, figureFileSmall=UpFE4WDio49KsofWmh0g+w==, figureFileBig=5ZmLOC78nrmJ9Cd12GvqDw==, tableContent=null), ArticleFig(id=1315743651599331561, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图15, caption=
实验装置, figureFileSmall=UpFE4WDio49KsofWmh0g+w==, figureFileBig=5ZmLOC78nrmJ9Cd12GvqDw==, tableContent=null), ArticleFig(id=1315743651704189162, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Fig.16, caption=
Test results of outdoor experiment, figureFileSmall=EuUr5JSYSpPvt8DmWsoqnA==, figureFileBig=8vXRd4er63LC4TL5jCa6zw==, tableContent=null), ArticleFig(id=1315743653327384811, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=图16, caption=
室外试验测试结果, figureFileSmall=EuUr5JSYSpPvt8DmWsoqnA==, figureFileBig=8vXRd4er63LC4TL5jCa6zw==, tableContent=null), ArticleFig(id=1315743653415465196, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Table 1, caption=
BPW20 parameter
, figureFileSmall=null, figureFileBig=null, tableContent=
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|
| Active | | | 8.3 | | mm2 |
| Detector resistance | | 7 | 38 | | |
| Dark current | | | 2 | 30 | nA |
| Noise current | | 1 | 1.3 | 2.5 | pA/Hz |
| Responsivity | r | | 0.6 | | A/W |
| Rise time | | | 3.4 | | |
| Reverse light current | | 20 | | 60 | |
), ArticleFig(id=1315743653499351277, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=表1, caption=
BPW20参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|
| Active | | | 8.3 | | mm2 |
| Detector resistance | | 7 | 38 | | |
| Dark current | | | 2 | 30 | nA |
| Noise current | | 1 | 1.3 | 2.5 | pA/Hz |
| Responsivity | r | | 0.6 | | A/W |
| Rise time | | | 3.4 | | |
| Reverse light current | | 20 | | 60 | |
), ArticleFig(id=1315743653570654446, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=EN, label=Table 2, caption=
AD825 parameter
, figureFileSmall=null, figureFileBig=null, tableContent=
| Parameter | Min | Typ | Max | Unit |
|---|
| Input bias current | | 15 | 40 | pA |
| Common mode rejectin | 71 | 80 | | dB |
| Input voltage noise | | 12 | 30 | |
| Input current noise | | 10 | | |
), ArticleFig(id=1315743653654540527, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743640249544830, language=CN, label=表2, caption=
AD825参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| Parameter | Min | Typ | Max | Unit |
|---|
| Input bias current | | 15 | 40 | pA |
| Common mode rejectin | 71 | 80 | | dB |
| Input voltage noise | | 12 | 30 | |
| Input current noise | | 10 | | |
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