CN105553443B - 一种强噪声条件下微弱信号提取及数字处理系统 - Google Patents
一种强噪声条件下微弱信号提取及数字处理系统 Download PDFInfo
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- CN105553443B CN105553443B CN201510915270.XA CN201510915270A CN105553443B CN 105553443 B CN105553443 B CN 105553443B CN 201510915270 A CN201510915270 A CN 201510915270A CN 105553443 B CN105553443 B CN 105553443B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
- H03H21/002—Filters with a particular frequency response
- H03H21/0021—Notch filters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/38—Calibration
- H03M3/386—Calibration over the full range of the converter, e.g. for correcting differential non-linearity
- H03M3/388—Calibration over the full range of the converter, e.g. for correcting differential non-linearity by storing corrected or correction values in one or more digital look-up tables
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CN105553443A CN105553443A (zh) | 2016-05-04 |
CN105553443B true CN105553443B (zh) | 2019-10-08 |
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Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106053930B (zh) * | 2016-07-06 | 2018-11-23 | 西北核技术研究所 | 一种抗随机噪声的无开关弱信号同步积分测量装置及测量方法 |
CN106483402A (zh) * | 2016-09-28 | 2017-03-08 | 深圳市太赫兹科技创新研究院 | 锁相放大器测试结构和方法 |
CN106840470B (zh) * | 2017-01-19 | 2019-06-07 | 北京机械设备研究所 | 一种电桥式压力传感器输出信号采集装置及方法 |
CN107144767B (zh) * | 2017-07-20 | 2023-06-02 | 云南电网有限责任公司电力科学研究院 | 一种故障指示装置及故障信号检测方法 |
CN108957120B (zh) * | 2018-05-17 | 2020-08-11 | 北华航天工业学院 | 一种微弱信号提取方法及系统 |
CN109032564B (zh) * | 2018-08-16 | 2022-12-02 | 电子科技大学 | 一种高稳定性的cordic算法实现电路 |
CN111857650B (zh) * | 2020-08-04 | 2023-09-05 | 南京大学 | 一种基于镜像查找表实现任意浮点型运算的硬件计算系统及其计算方法 |
CN111914806B (zh) * | 2020-08-18 | 2023-12-15 | 成都爱科特科技发展有限公司 | 一种高噪声环境下超短波微弱信号检测方法、装置、终端设备及存储介质 |
CN112511164B (zh) * | 2020-11-25 | 2023-03-14 | 中国科学技术大学 | 基于单比特采样的高速实时弱信号检测方法及装置 |
CN113093510B (zh) * | 2021-02-26 | 2022-07-22 | 山东师范大学 | 一种时钟频率信号误差测量仪及方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US7071860B2 (en) * | 2004-07-30 | 2006-07-04 | Broadcom Corporatin | System and method for noise cancellation in a signal processing circuit |
CN101640534A (zh) * | 2009-08-14 | 2010-02-03 | 东南大学 | 一种应用快速频率捕获方法的全数字锁相环 |
CN204989893U (zh) * | 2015-09-25 | 2016-01-20 | 贵州省计量测试院 | 一种强噪声条件下微弱信号提取及数字处理系统 |
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CN204689893U (zh) * | 2015-05-13 | 2015-10-07 | 广东介仁玻璃有限公司 | 一种装饰夹胶玻璃 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US7071860B2 (en) * | 2004-07-30 | 2006-07-04 | Broadcom Corporatin | System and method for noise cancellation in a signal processing circuit |
CN101640534A (zh) * | 2009-08-14 | 2010-02-03 | 东南大学 | 一种应用快速频率捕获方法的全数字锁相环 |
CN204989893U (zh) * | 2015-09-25 | 2016-01-20 | 贵州省计量测试院 | 一种强噪声条件下微弱信号提取及数字处理系统 |
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