摘要：【中文】本发明公开了一种基于超表面的双极化天线及其阵列，属于微波天线技术领域。该天线包括第一介质基板、金属地板、第二介质基板，第一介质基板上表面周期设置有辐射贴片，外侧一圈辐射贴片通过金属柱与地板连接；地板刻蚀有十字形槽与矩形槽；第二介质基板下表面设置有微带馈电结构。本发明通过在外侧辐射贴片加载金属柱，能够抑制表面波的传播，改善天线的辐射性能。相对于有金属柱加载的双极化超表面天线，无金属柱加载的容性超表面天线能够减小引入天线的等效电感，从而展宽天线的工作带宽。将本发明提出的天线单元组阵，且在单元之间加载条形蘑菇结构，能够提高端口间的隔离度，实现高增益、低交叉极化的双极化天线阵列设计。 【EN】The invention discloses a dual-polarized antenna based on a super surface and an array thereof, belonging to the technical field of microwave antennas. The antenna comprises a first dielectric substrate, a metal floor and a second dielectric substrate, wherein radiation patches are periodically arranged on the upper surface of the first dielectric substrate, and a circle of radiation patches on the outer side of the first dielectric substrate are connected with the floor through metal columns; the floor is etched with a cross-shaped groove and a rectangular groove; the lower surface of the second dielectric substrate is provided with a microstrip feed structure. According to the invention, the metal column is loaded on the external radiation patch, so that the propagation of surface waves can be inhibited, and the radiation performance of the antenna is improved. Compared with a dual-polarized super-surface antenna loaded by metal columns, the capacitive super-surface antenna without metal column loading can reduce the equivalent inductance of the introduced antenna, so that the working bandwidth of the antenna is widened. The antenna unit array provided by the invention is loaded with the strip mushroom structures among the units, so that the isolation between ports can be improved, and the design of a high-gain and low-cross polarization dual-polarized antenna array is realized.

摘要：【中文】本发明公开了一种基于视觉显著性检测的高分辨率遥感影像道路提取方法，该方法通过下述技术方案予以实现：首先通过去燥、阴影检测与去除、超像素提取以及影像切割方法对原始遥感影像进行预处理；在基于边界权重的显著图检测算法中，使用凸包检测和边界概率算法为显著性区域检测提供先验信息；在基于背景连通性的显著性检测的算法中，以背景连通性作为显著性检测准则，计算基于背景连通性的显著图；然后以基于边界权重的显著图检测为先验信息与基于背景连通性的显著图检测在梯度域进行图像融合，并使用Haar小波重建图像得到改良的显著图；最后使用GrabCut算法自动的生成用于道路提取的二值掩膜图，提高了道路检测与提取的精确度。 【EN】The invention discloses a high-resolution remote sensing image road extraction method based on visual saliency detection, which is realized by the following technical scheme: firstly, preprocessing an original remote sensing image by means of drying, shadow detection and removal, super-pixel extraction and image cutting; in a saliency map detection algorithm based on boundary weight, convex hull detection and a boundary probability algorithm are used for providing prior information for saliency region detection; in the algorithm of the significance detection based on the background connectivity, the background connectivity is used as a significance detection criterion, and a significance map based on the background connectivity is calculated; then, carrying out image fusion in a gradient domain by taking saliency map detection based on boundary weight as prior information and saliency map detection based on background connectivity, and reconstructing an image by using Haar wavelet to obtain an improved saliency map; and finally, automatically generating a binary mask map for road extraction by using a GrabCT algorithm, thereby improving the accuracy of road detection and extraction.

摘要：【中文】本发明涉及VR教育领域，其公开了一种在web3D环境融入视觉问答的人机交互系统，解决传统多媒体教学存在的交互模式单一，交互性不强，缺乏趣味性的问题。该系统包括：web端和服务器端，所述web端与服务器端通过Socket建立连接；所述web端利用WebGL技术，通过模型加载器导入建模工具制作的教育场景模型，通过渲染器渲染场景，从而在浏览器中展示3D教育场景，通过获取用户的问题和图片输入信息传输给服务器端，获取服务器端的反馈答案在所述3D教育场景中结合交互动画进行答案展示；所述服务器端中设置有用于教育系统的视觉问答模型，在收到web端传入的问题和图片输入信息后，利用视觉问答模型获取相应答案，并反馈给web端。 【EN】The invention relates to the field of VR education, discloses a human-computer interaction system for integrating visual question answering in a web3D environment, and solves the problems of single interaction mode, low interactivity and lack of interestingness in traditional multimedia teaching. The system comprises: the system comprises a web end and a server end, wherein the web end and the server end are connected through a Socket; the web end utilizes a WebGL technology, an education scene model made by a modeling tool is led in through a model loader, a scene is rendered through a renderer, so that a 3D education scene is displayed in a browser, questions and picture input information of a user are acquired and transmitted to a server end, and feedback answers of the server end are acquired to be displayed in the 3D education scene in combination with interactive animations; and the server side is internally provided with a visual question-answer model for the education system, and after receiving questions and picture input information transmitted by the web side, the server side acquires corresponding answers by using the visual question-answer model and feeds the answers back to the web side.

摘要：【中文】本发明涉及一种基于PIN二极管的毫米波/太赫兹功率倍频电路，包括：输入微带端口、隔直电容、直流偏置电路、低通滤波器、输入阻抗匹配电路、PIN二极管、输出阻抗匹配电路、带通滤波器和输出微带端口。基于PIN二极管的非线性特性和高功率承受特性，实现功率倍频功能。输入、输出阻抗匹配电路保证了输入信号最大效率的加载到二极管上，并实现倍频信号与输出负载良好的匹配特性，提高了倍频效率；带通滤波器提取出高次倍频信号，抑制其他频率的信号。本发明具有输出功率高，倍频损耗小，倍频效率高等优点，适用于毫米波/太赫兹电子系统。 【EN】The invention relates to a millimeter wave/terahertz power frequency doubling circuit based on a PIN diode, which comprises: the device comprises an input micro-strip port, a DC blocking capacitor, a DC bias circuit, a low-pass filter, an input impedance matching circuit, a PIN diode, an output impedance matching circuit, a band-pass filter and an output micro-strip port. Based on the nonlinear characteristic and the high-power bearing characteristic of the PIN diode, the power frequency doubling function is realized. The input impedance matching circuit and the output impedance matching circuit ensure that the input signal is loaded on the diode with the maximum efficiency, realize the good matching characteristic of a frequency doubling signal and an output load and improve the frequency doubling efficiency; the band-pass filter extracts high-order frequency multiplication signals and inhibits signals of other frequencies. The invention has the advantages of high output power, small frequency multiplication loss, high frequency multiplication efficiency and the like, and is suitable for millimeter wave/terahertz electronic systems.

摘要：【中文】本发明属于卫星通信技术领域，具体为一种基于小型化单元的双频宽带宽角圆极化栅，在保证宽带、低插损的前提下，有效解决双频圆极化栅入射角稳定性差的问题；特别适用于大容量、低损耗和高入射角稳定性的双频扫描圆极化卫星通信系统。本发明充分利用短微带线和金属线栅复合结构，能够大大增强了交叉极化抑制能力，且易于拓展带宽和减小插损；同时，通过在“I”型短微带线末端加载四个短枝节形成变形“I”型短微带线，能够进一步降低单元尺寸至0.13×0.18个工作波长，显著提高了入射角稳定性；该极化栅在双频段中心频点处插损分别仅为0.5和1.5dB，相对轴比带宽分别高达33％和12％，最大可工作入射角提高至45度，显著优于现有技术的25度。 【EN】The invention belongs to the technical field of satellite communication, and particularly relates to a dual-frequency broadband wide-angle circularly polarized grid based on a miniaturization unit, which effectively solves the problem of poor incident angle stability of the dual-frequency circularly polarized grid on the premise of ensuring broadband and low insertion loss; the dual-frequency scanning circularly polarized satellite communication system is particularly suitable for a dual-frequency scanning circularly polarized satellite communication system with high capacity, low loss and high incident angle stability. The invention fully utilizes the composite structure of the short microstrip line and the metal wire grating, can greatly enhance the cross polarization inhibition capability, and is easy to expand the bandwidth and reduce the insertion loss; meanwhile, four short branches are loaded at the tail end of the I-shaped short microstrip line to form a deformed I-shaped short microstrip line, so that the unit size can be further reduced to 0.13 multiplied by 0.18 working wavelength, and the stability of the incident angle is obviously improved; the insertion loss of the polarization grating at the center frequency point of the dual-band is only 0.5dB and 1.5dB respectively, the relative axial ratio bandwidth is respectively up to 33 percent and 12 percent, the maximum operable incident angle is improved to 45 degrees, and the maximum operable incident angle is obviously superior to 25 degrees in the prior art.

摘要：【中文】本发明公开了一种圆极化同轴内嵌圆波导模式激励器，属于模式激励器领域。该模式激励器为内导体为圆波导形式的同轴波导结构，包括依次连接的截止段、谐振段和辐射段，所述谐振段中，内导体波导壁上沿轴向设置有周期性螺旋分布的角向和轴向都满足布拉格谐振条件的耦合缝隙或者耦合孔阵列。本发明模式激励器具有结构简单、矢量模式纯度高、耦合效率大、高纯度带宽和杂模数目少的优点。 【EN】The invention discloses a circularly polarized coaxial embedded circular waveguide mode exciter, and belongs to the field of mode exciters. The mode exciter is a coaxial waveguide structure with an inner conductor in a circular waveguide form, and comprises a cut-off section, a resonance section and a radiation section which are sequentially connected, wherein a coupling gap or a coupling hole array which is periodically spirally distributed and meets the Bragg resonance condition in the angular direction and the axial direction is axially arranged on the waveguide wall of the inner conductor in the resonance section. The mode exciter has the advantages of simple structure, high vector mode purity, high coupling efficiency, high purity bandwidth and less number of stray modes.

摘要：【中文】本发明公开了一种全光再生器整形指数的测量装置，包括光信号产生单元、功率可调光放大器、ASE噪声加载模块、分光器、待测全光再生器和光功率计；具体测试时，通过调节ASE噪声加载模块的噪声加载功率，完成待测全光再生器的功率转移函数、工作点增益大小、输入劣化信号的光信噪比，以及劣化信号的总增益的测量，最后根据测量指标计算出可用于表征全光再生器光信噪比提升能力的光整形指数参数。 【EN】The invention discloses a measuring device for a shaping index of an all-optical regenerator, which comprises an optical signal generating unit, a power adjustable optical amplifier, an ASE noise loading module, an optical splitter, an all-optical regenerator to be measured and an optical power meter, wherein the optical signal generating unit is used for generating an optical signal; during specific test, the power transfer function of the all-optical regenerator to be tested, the gain of the working point, the optical signal-to-noise ratio of the input degraded signal and the total gain of the degraded signal are measured by adjusting the noise loading power of the ASE noise loading module, and finally, the optical shaping index parameter which can be used for representing the optical signal-to-noise ratio improving capacity of the all-optical regenerator is calculated according to the measurement index.

摘要：【中文】本发明公开了一种有机体异质结掺杂的钙钛矿太阳能电池及其制备方法，属于电子元器件中有机光电器件技术领域，由下至上依次包括衬底、第一电极层、功能层和第二电极层，其特征在于：所述功能层包括至少一层掺杂有机给受体体异质结的钙钛矿活性层，所述有机给受体体异质结包含两种有机物组分，分别为电子给体材料和电子受体材料，每种有机物组分至少包含一种聚合物和一种小分子材料；所述有机体异质结通过溶解入溶剂中掺杂在钙钛矿前驱体溶液中，通过旋涂制备掺杂有机体异质结的钙钛矿活性层。将有机体异质结引入钙钛矿活性层中，有效的拓宽了光谱，获取了不同于钙钛矿吸收波段的其他波段光生电流，并提升了器件的填充因子，有效地提升电池效率。 【EN】The invention discloses an organic bulk heterojunction doped perovskite solar cell and a preparation method thereof, belonging to the technical field of organic photoelectric devices in electronic components, and sequentially comprising a substrate, a first electrode layer, a functional layer and a second electrode layer from bottom to top, and being characterized in that: the functional layer comprises at least one perovskite active layer doped with an organic donor-acceptor bulk heterojunction, the organic donor-acceptor bulk heterojunction comprises two organic components which are an electron donor material and an electron acceptor material respectively, and each organic component at least comprises a polymer and a small molecule material; the organic bulk heterojunction is dissolved in a solvent and doped in a perovskite precursor solution, and the perovskite active layer doped with the organic bulk heterojunction is prepared by spin coating. The organic bulk heterojunction is introduced into the perovskite active layer, so that the spectrum is effectively widened, the photoproduction current of other wave bands different from the absorption wave band of the perovskite is obtained, the filling factor of the device is improved, and the battery efficiency is effectively improved.

摘要：【中文】本发明公开了一种基于电压变化量的晶体振荡器抗振补偿装置及方法，通过压控晶体振荡器、功分器、微处理器、数模转换器、滤波器以及加法器依次连接形成闭环补偿构架，由微处理器和数模转换器直接生成补偿电压变化量，更容易实现实时高精度补偿。本发明不需要加速度传感器，而是直接将压控晶体振荡器的实时输出频率与振动条件建立联系，能够克服现有抗振晶体振荡器中由于使用外部加速度感器带来的迟滞问题。同时，本发明补偿过程简单，补偿结构也较为简单，易于集成和批量生产。此外，本发明可以良好适用于各种频率的晶体振荡器，尤其是对于采用现有技术补偿效果较差的高频晶体振荡器更为明显，实用性强。 【EN】The invention discloses a crystal oscillator anti-vibration compensation device and method based on voltage variation, wherein a voltage-controlled crystal oscillator, a power divider, a microprocessor, a digital-to-analog converter, a filter and an adder are sequentially connected to form a closed-loop compensation framework, and the microprocessor and the digital-to-analog converter directly generate compensation voltage variation, so that real-time high-precision compensation is easier to realize. The invention does not need an acceleration sensor, but directly establishes the relation between the real-time output frequency of the voltage-controlled crystal oscillator and the vibration condition, and can overcome the hysteresis problem caused by using an external acceleration sensor in the conventional anti-vibration crystal oscillator. Meanwhile, the compensation process is simple, the compensation structure is simpler, and the integration and batch production are easy. In addition, the invention can be well suitable for crystal oscillators with various frequencies, and is particularly more obvious for high-frequency crystal oscillators with poor compensation effect in the prior art, and the practicability is strong.

摘要：【中文】本发明实施例公开液晶透镜阵列器件、成像装置及成像方法。液晶透镜阵列器件包括：第一阵列电极、第二阵列电极以及液晶层。第一阵列电极包括多个第一电极对，第二阵列电极包括多个第二电极对，第一阵列电极的第一电极对在参考平面上的投影与第二阵列电极的第二电极对部分交叠，参考平面与液晶层的平面平行，第一电极对包括第一电极和第二电极，第二电极对包括第三电极和第四电极，当在T1时刻形成第一液晶透镜阵列时，第一电极施加第一电压，第二电极施加第二电压，第二电极对作为公共电极；当在T2时刻形成第二液晶透镜阵列时，第二电极对的第三电极施加第一电压，第四电极施加第二电压，第一电极对作为公共电极。本发明具有高占空比的优点。 【EN】The embodiment of the invention discloses a liquid crystal lens array device, an imaging device and an imaging method. The liquid crystal lens array device includes: the liquid crystal display device comprises a first array electrode, a second array electrode and a liquid crystal layer. The first array electrodes include a plurality of first electrode pairs, the second array electrodes include a plurality of second electrode pairs, a projection of the first electrode pairs of the first array electrodes on a reference plane partially overlaps the second electrode pairs of the second array electrodes, the reference plane is parallel to a plane of the liquid crystal layer, the first electrode pairs include first electrodes and second electrodes, the second electrode pairs include third electrodes and fourth electrodes, the first electrodes apply a first voltage and the second electrodes apply a second voltage when the first liquid crystal lens array is formed at time T1, and the second electrode pairs serve as common electrodes; when the second liquid crystal lens array is formed at time T2, the first voltage is applied to the third electrode and the second voltage is applied to the fourth electrode of the second electrode pair, and the first electrode pair serves as a common electrode. The invention has the advantage of high duty cycle.