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1. 发明授权

US11520006B2 Method and apparatus for generating non-linear frequency modulation signal in real time and computer storage medium 有权
公开(公告)号：US11520006B2
公开(公告)日：2022-12-06
申请号：US16820028
申请日：2020-03-16
申请人： Institute of Electronics, Chinese Academy of Sciences
发明人： Yu Wang , Kaiyu Liu , Wei Wang , Guodong Jin , Yu Sha , Yunkai Deng , Dacheng Liu , Yajun Long , Yongwei Zhang
IPC分类号： G01S7/35 , G01S13/90
摘要： A method and apparatus for generating a NLFM signal in real time, and a computer storage medium are disclosed, including: determining a signal parameter of a signal according to a system parameter, the signal parameter includes: a signal bandwidth, a signal pulse width and a PSLR; determining a power spectrum density function according to PSLR; calculating the power spectrum density function to obtain a group delay vector; calculating a frequency axial vector according to a system sampling rate; calculating a time axial vector according to the signal pulse width; performing linear interpolation calculation on the group delay vector to obtain an instantaneous frequency vector; integrating the instantaneous frequency vector to obtain a phase vector; determining a signal time domain discrete vector; and generating a digital signal according to the signal time domain discrete vector, and performing digital-to-analog conversion on the digital signal to obtain the NLFM signal.

2. 发明授权

US10948579B2 Method and device for designing and optimizing multi-degree-of-freedom frequency-modulation signal 有权
公开(公告)号：US10948579B2
公开(公告)日：2021-03-16
申请号：US16194803
申请日：2018-11-19
申请人： Institute of Electronics, Chinese Academy of Sciences
发明人： Yu Wang , Guodong Jin , Yunkai Deng , Yajun Long , Wei Wang
IPC分类号： G01S13/34 , G01S7/35 , G01S13/00 , G06N3/08 , G01S13/90
摘要： Provided are a method and device for designing and optimizing a multi-degree-of-freedom frequency-modulation (FM) signal, and a computer storage medium. The method includes that: a time domain function of the multi-degree-of-freedom FM signal is determined; the constraint condition and the objective function of multi-degree-of-freedom FM signal optimization are established; an algorithm model of augmented Lagrangian genetic algorithm is determined based on the constraint condition and the objective function; characteristic parameters of the first iteration of the algorithm model are initialized, where the characteristic parameters of the first iteration at least include the Lagrange multiplier of the first iteration and the offset of the first iteration; initialization signal of the multi-degree-of-freedom FM signal is acquired, and initialization frequency control points of the initialization signal are determined based on the initialization signal.

3. 发明申请

US20200271772A1 METHOD AND DEVICE FOR SUPPRESSING RANGE AMBIGUITY 审中-公开
公开(公告)号：US20200271772A1
公开(公告)日：2020-08-27
申请号：US16795050
申请日：2020-02-19
申请人： Institute of Electronics, Chinese Academy of Sciences
发明人： Yu WANG , Dacheng LIU , Pengfei ZHAO , Yunkai DENG
IPC分类号： G01S13/10 , G01S13/90 , G01S7/28 , G01S7/02 , G06N7/08
摘要： Please replace the Abstract originally filed with the following: A method and device for suppressing range ambiguity and a computer readable storage medium are provided. The method includes: determining a pulse timing relationship of a transmission signal; determining orthogonal nonlinear frequency modulation signals; modulating the transmission signal by using the orthogonal nonlinear frequency modulation signals; transmitting the modulated transmission signal according to the pulse timing relationship, and determining echo data of the modulated transmission signal; and generating an image according to a polarization scattering matrix for the echo data of the modulated transmission signal.

4. 发明授权

US10649078B2 Method and system for detecting geological structure of an extraterrestrial solid planet by using a single-transmitter and multiple-receiver radar 有权
公开(公告)号：US10649078B2
公开(公告)日：2020-05-12
申请号：US15114193
申请日：2014-12-19
申请人： Institute of Electronics, Chinese Academy of Sciences
发明人： Guangyou Fang , Yicai Ji , Bin Zhou , Qunying Zhang , Wei Lu , Shaoxiang Shen
IPC分类号： G01S13/88 , G01V3/12 , G01S13/00
摘要： A method and a system for detecting geological structure of an extraterrestrial solid planet by using a single-transmitter and multiple-receiver (STMR) radar are provided. The method comprises obtaining the detection of thickness distribution and geological structure of each geological layer on the extraterrestrial solid planet by using a STMR mode, and calculating information of the dielectric coefficients and the depth of the respective geological layer. There are two detection channels having different depths of detection and detection resolutions, in which a first channel operates in a HF/VHF band for detecting geological structure of rocks on the extraterrestrial solid planet, and a second channel operates in a UHF band for detecting geological structure of regolith on the extraterrestrial solid planet. These two detection channels can cooperate with each other, ensuring accuracy and reliability of the detection.

5. 发明授权

US10338155B2 Magnetometer body and three-axis induction magnetometer using the same 有权
公开(公告)号：US10338155B2
公开(公告)日：2019-07-02
申请号：US15021369
申请日：2014-03-05
申请人： Institute of Electronics, Chinese Academy of Sciences
发明人： Wanhua Zhu , Bin Yan , Leisong Liu , Guangyou Fang
IPC分类号： G01R33/02 , G01R33/00 , G01R33/04
摘要： The present disclosure provides a magnetometer body and a three-axis Induction Magnetometer (IM) using the same. The magnetometer body comprises: a magnetic core structure with an H-shaped longitudinal section, having a middle portion being an elongated rod-shaped magnetic core and two end portions being disk-shape magnetic flux concentrators; and an induction coil evenly wounded around a perimeter of the magnetic core in the magnetic core structure. In the present disclosure, disk-shape magnetic flux concentrators are fixed on two ends of the elongated magnetic core to collect magnetic flux, which is equivalent to increasing a length-diameter ratio of the magnetic core, thereby breaking through a noise limit of a conventional IM in a limited space.

6. 发明申请

US20180196136A1 METHOD AND DEVICE FOR IMAGING BY BISTATIC SYNTHETIC APERTURE RADAR 审中-公开
公开(公告)号：US20180196136A1
公开(公告)日：2018-07-12
申请号：US15868991
申请日：2018-01-11
申请人： Institute of Electronics, Chinese Academy of Sciences
发明人： Yu Wang , Heng Zhang , Yunkai Deng , Jiangwen Tang , Jili Wang , Ning Li , Chunhui Zhou
IPC分类号： G01S13/90 , G01S13/00
摘要： Range-compressed data are determined by range-compressing echo data, and are set as first data to be decomposed by first decomposition. Starting from n=1, iteration is performed as follows. nth data to be decomposed are up-sampled. nth decomposition is performed on the up-sampled data. Dependency on slant ranges between a reference point and sub-apertures before and after synthesis is determined. nth azimuth-synthesized data are acquired by performing, according to the dependency on the slant ranges, nth azimuth synthesis on data acquired by the nth decomposition. The nth azimuth-synthesized data are set as (n+1)th data to be decomposed by (n+1)th decomposition. The n is increased by 1. A next iteration is performed until the n reaches a positive integer N greater than 1. A focused image is acquired by performing azimuth focusing on the Nth azimuth-synthesized data by BP.

7. 发明授权

US11520036B2 Method and apparatus for space-variance correction imaging of bistatic SAR, device and storage medium 有权
公开(公告)号：US11520036B2
公开(公告)日：2022-12-06
申请号：US17316748
申请日：2021-05-11
申请人： Institute of Electronics, Chinese Academy of Sciences
发明人： Heng Zhang , Yu Wang , Tingzhu Fang , Da Liang , Haoyu Lin , Yunkai Deng
IPC分类号： G01S13/90
摘要： A method for space-variance correction imaging of BiSAR includes: motion parameters corresponding to a target point in an equivalent monostatic mode are calculated using a first motion trajectory, a second motion trajectory and an imaging parameter for focusing a radar echo signal, the target point at least including a center point of an imaging scene; azimuth Doppler center bias correction is performed on the radar echo signal by using the motion parameters corresponding to the center point; uniform and residual range cell migration correction is performed on a corrected signal, range blocking is performed, and range space-variance phase errors are corrected block by block; azimuth blocking is performed, and a corresponding number of filters are constructed for filtering processing; and inverse Doppler center bias correction is further performed to obtain a final imaging result graph.

8. 发明授权

US09513323B2 Rotary resonant three-dimensional electric field sensor 有权
标题翻译：旋转谐振三维电场传感器
公开(公告)号：US09513323B2
公开(公告)日：2016-12-06
申请号：US14385410
申请日：2013-03-15
申请人： INSTITUTE OF ELECTRONICS, CHINESE ACADEMY OF SCIENCES
发明人： Shanhong Xia , Yu Wang , Dongming Fang , Chunrong Peng
IPC分类号： G01R29/08 , G01R29/12
CPC分类号： G01R29/08 , G01R29/12
摘要： A rotary resonant three-dimensional electric field sensor is disclosed. The rotary resonant three-dimensional electric field sensor includes: a substrate (1); an X-direction electric field measurement unit (4), a Y-direction electric field measurement unit (5), and a Z-direction electric field measurement unit (6), set on the substrate (1), each of which including: a sensing electrode (8, 10, 13) fixed on the substrate (1), and a shielding electrode (7, 9, 12) vibrating relatively to the sensing electrode (8, 10, 13); and at least one set of driving mechanical structures (11, 18), is configured to generate a driving force so as to cause the shielding electrode (7, 9) to vibrate relatively to a corresponding sensing electrode (8, 10, 13), and the vibration is transferred to the shielding is electrodes (7, 9, 12) of the other two electric field measurement units (4, 5, 6).
摘要翻译：公开了一种旋转谐振三维电场传感器。旋转谐振三维电场传感器包括：基板（1）; 设置在基板（1）上的X方向电场测量单元（4），Y方向电场测量单元（5）和Z方向电场测量单元（6），每个都包括：固定在所述基板（1）上的检测电极（8,10,13）以及相对于所述检测电极（8,10,13）振动的屏蔽电极（7,9,12）。并且至少一组驱动机械结构（11,18）被配置为产生驱动力，以使得屏蔽电极（7,9）相对于相应的感测电极（8,10,13）振动，并且振动传递到屏蔽层是另外两个电场测量单元（4,5,6）的电极（7,9,12）。

9. 发明申请

US20160091546A1 HIGH RESISTIVITY MATERIAL-BASED PACKAGING ELEMENT FOR ELECTRIC FIELD SENSOR 审中-公开
标题翻译：高电阻材料用于电场传感器的包装元件
公开(公告)号：US20160091546A1
公开(公告)日：2016-03-31
申请号：US14787851
申请日：2014-08-05
申请人： INSTITUTE OF ELECTRONICS CHINESE ACADEMY OF SCIENCES
发明人： Shanhong XIA , Xiaolong WEN , Xianxiang CHEN , Chunrong PENG , Pengfei YANG , Dongming FANG
IPC分类号： G01R29/12 , H05K1/18
CPC分类号： G01R29/12 , G01R29/0878 , H01L23/053 , H01L2224/48091 , H05K1/185 , H01L2924/00014
摘要： A high resistivity material-based packaging element for an electric field sensor comprises: a substrate; a first packaging frame fixed to the substrate; and a first packaging cover fixed to the packaging frame; wherein at least one electric field sensor chip is located in an inner cavity formed by the substrate, the first packaging frame, and the first packaging cover, and at least one of the substrate, the first packaging frame, and the first packaging cover is of a high resistivity material having an electrical resistivity equal to or greater than 108Ω·cm. The present invention can ensure accurate measurement of the electric field, and provide an approach to solve the problem of environmental adaptability, thereby enhancing the stability and reliability of electric field detection.
摘要翻译：用于电场传感器的高电阻率材料基封装元件包括：基片; 固定在基板上的第一包装框架; 以及固定到所述包装框架上的第一包装盖; 其中至少一个电场传感器芯片位于由所述基板，所述第一包装框架和所述第一包装盖形成的内腔中，并且所述基板，所述第一包装框架和所述第一包装盖中的至少一个是具有等于或大于108Ω·cm·cm的电阻率的高电阻率材料。本发明可以确保电场的精确测量，并提供解决环境适应性问题的方法，从而提高电场检测的稳定性和可靠性。

10. 发明授权

US11579281B2 Method and device for suppressing range ambiguity 有权
公开(公告)号：US11579281B2
公开(公告)日：2023-02-14
申请号：US16795050
申请日：2020-02-19
申请人： Institute of Electronics, Chinese Academy of Sciences
发明人： Yu Wang , Dacheng Liu , Pengfei Zhao , Yunkai Deng
IPC分类号： G01S13/10 , G01S13/90 , G06N7/08 , G01S7/02 , G01S7/28
摘要： A method and device for suppressing range ambiguity and a computer readable storage medium are provided. The method includes: determining a pulse timing relationship of a transmission signal; determining orthogonal nonlinear frequency modulation signals; modulating the transmission signal by using the orthogonal nonlinear frequency modulation signals; transmitting the modulated transmission signal according to the pulse timing relationship, and determining echo data of the modulated transmission signal; and generating an image according to a polarization scattering matrix for the echo data of the modulated transmission signal.

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