查询词典 in-line antenna

A CW carrier signal, generated by Agilent Signal Generator, is transmitted to the subject, which reflects the modulated waves to the receiver antenna. The Agilent Spectrum Analyzer, with an under-conversion module inside, demodulates the received signal to 70MHz IF signal, which is then sampled by a ADC module in Agilent Vector Signal Analyzer. Digital quadrature demodulation is used to convert IF signal to baseband. We could finally get the respiration and heartbeat signal by further analyzing the baseband signal.

该系统由信号发射器产生载波，通过天线发射到被测物体；频谱分析仪内置的下变频模块将由物体反射回来的信号下变频到70MHz中频；中频信号经矢量信号分析仪采样，然后经过数字正交解调变频到基带信号；对基带信号进行滤波、FFT等进一步的数字信号处理后即可获得探测的心跳和呼吸信号。

In 3G night before last, extend antenna to domain of mobile phone video, it is a well-advised choice undoubtedly.

在3G前夜，把触角伸向手机视频领域，无疑是个明智的选择。

The best location is outside, as high as possible, but good results are also possible with a Yagi antenna in the roof space.

最佳的地点是外面，尽可能高，但好结果是还可能的与Yagi 天线在屋顶空间。

Then, the mutual between the driven and the parasitic element is analyzed in detail, and the even-odd-mode method is presented to explain the pattern characteristics of the two-element Yagi microstrip antenna.

最后，在寄生贴片上引入一种槽单元，通过改变槽单元的尺寸和位置，改变了八木天线的频率特性和方向图特性。

The results indicated that there were six types of sensilla, namely, finger-like sensilla, platcodeum sensilla, trichoid sensilla, ampullaceous sensilla and chaetic sensilla on the antenna of two wasps. The type, number, and distribution patterns of the antennal sensilla were similar in the two species, but the differences between two sexes were significant.

结果发现，在两种寄生蜂的触角上着生着6种感器，分别为指形感器、板状感器、毛形感器、坛形感器、刺形感器、蒲姆氏鬃；两种桑天牛卵寄生蜂触角感器的种类、数量及分布模式在种间没有明显差异，但在种内雌雄个体间差异较为显著。

On the basis of ESTs, three antenna specific protein—Ac-ASP1, Ac-ASP2 and Ac-ASP3, were cloned and identified through the transcriptional profiles and immunocytochemical localization in antennal sensilla. All above will produce an important basis to the exquisite olfaction and action of discrimination against others and resistance to mites of A.

在此基础上，着重通过对中蜂主要的触角特异蛋白——Ac-ASP1，Ac-ASP2和Ac-ASP3进行基因克隆，并通过其在触角中的转录表达谱和在触角不同感器内的亚细胞定位，以期对上述分子进行鉴定，最终对揭示中蜂灵敏的嗅觉以及独特的排异和抗螨能力奠定重要的基础。

In APAR simulator system design scheme a new design is used to generate all the sum, azimuth difference and elevation difference channel target echo signal by passing only one channel signal of target through antenna gain multiplication circuit, which simplified the simulator design.

提出了在很短的一帧时间里用匀加速直线运动拟和目标实际运动轨迹的方法，简化了目标回波模拟系统并实现了目标数据的实时模拟。

The smart antenna technique is one of the hotspot of the recent researches and its control algorithm is crucial. This dissertation demonstrates our benefic exploration and research in this area.

智能天线技术是当今研究热点之一，其控制算法是智能天线技术的关键，本文在前人的基础上进行了有益的探索和研究。

In view of how to strengthen the receiving-signal intensity of field of TV relay stations and increase the ability to resist jamming so as to garrantee the TV relay ing quality , this article combining with the actual conditions introduces the way of making ,setting up and site-choosing of 8 -unit biserial antenna array.

本文从如何提高电视转播台接收信号场强、增强抗干扰能力、保证电视转播质量这个角度出发，结合实际介绍了8单元双列天线阵的制作、架设与选址方法。

In 5 days after ALA treatment, under the same actinic light intensity, along with the time increased, increased PS II actual photochemical efficiency Φ_(psⅡ, photochemical quench, non-photochemical qnench, electron transfer rate, photochemistry rate, photochemistry and antenna heat dissipation of the watermelon Citrullus lanatus Thunb.

ALA处理5天后，在同一作用光下，随着时间的延长，西瓜叶片PSⅡ实际光化学效率Φ_(PSⅡ、荧光猝灭系数、非光化学荧光猝灭系数、电子传递速率、光化学速率、光化学效率、热耗散速率及天线热耗散的光动力曲线均上升；稳态荧光和PSⅡ反应中心非光化学耗散的光时间曲线逐渐下降。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。