By using methods of passivity and switching control, the linear subsystem is transformed into a robust strictly passive system and it is asymptotically stable independent of the switching policy.

用同樣的方法解決了一類具有結(jié)構(gòu)不確定性的多輸入非線性級聯(lián)系統(tǒng)的魯棒不變切換控制問題欧美、日韩、亚洲、中文视频。

The principle and composition of the passive hydrogen maser is introduced briefly,and an application of digital frequency modulation and digital servo to the passive hydrogen maser for improving the performance of the clock is expounded.The final test and analysis of the system are presented and the data indicate that the stability of the present system is much better than that of the original one.

簡單介紹了被動型氫原子鐘的組成及原理国内外自拍偷拍视频，闡述了基于數(shù)字調(diào)頻和數(shù)字伺服的電子電路在被動型氫原子鐘上的應(yīng)用免费A级黄毛片在线网站免费，并給出了設(shè)計的最終測試結(jié)果及其分析日韩欧美国产三区，數(shù)據(jù)表明該系統(tǒng)的穩(wěn)定度比原有系統(tǒng)有很大提高五月丁香婷婷综合网站。

Passive power filters is adopt widely because it is simple configuration, convenient maintenance, low cost and etc. Otherwise, passive power filters is easy affect by change of system parameters, can' t remove sequential harmonics, and easy arose series and parallel resonance with system.

無源電力濾波器由于其結(jié)構(gòu)簡單，維護(hù)方便人妻系列无码区久久精品，造價低廉等優(yōu)點仍然成為目前普遍采用的一種濾波手段国内揄拍国内,精品人妻，但是無源電力濾波器受到系統(tǒng)結(jié)構(gòu)變化影響較大，不能消除連續(xù)諧波免费三级影片，且容易和系統(tǒng)阻抗發(fā)生相互作用重口味人人操人人摸，引起串聯(lián)、并聯(lián)諧振情爱视频网址，嚴(yán)重時甚至使系統(tǒng)崩潰wwwavv。

On the other hand, from the point of view of work manner, thedetecting systems can be classified two kinds: the active and the passive systems. Althoughthe passive detecting system can\'t get so much information as the active one, it has itsspecial characteristic. For instance, the passive system is immune to the radar clutter. It issecreting and has no electromagnetic pollution due to none of radialization. The passivesystem also has excellent capability of detecting the target covered with the stealth material.

從工作方式來看，探測系統(tǒng)還可分為主動和被動兩種方式一级a片2018，雖然主動工作方式可以獲得關(guān)于目標(biāo)的更多信息久久久极品精品，但是被動工作方式也有其不可替代的特性，如不受閃爍效應(yīng)的影響女生扒开腿让男人捅出白浆的动态图；由于本身不發(fā)射電磁波91上海人妻系列网站，因而沒有電磁污染及工作比較隱密；對覆蓋吸波材料的目標(biāo)探測能力很強(qiáng)等国产在线精品一区二区中文。

Because thedetecting of the metal object is important in both military and civil applications, wefocused on the aim and do lots of measurement of the radiometric characteristic ofseveral objects correlating to the metal detecting and got the datum. We also completedthe inversion algorithm of retrieving the brightness temperature from the measureddatum.2 The radiometer is the apparatus of incepting the MMW radialization and is the key partof all passive MMW detecting and imaging system. Our emphasis of radiometerresearch was on a kind of AC radiometer, we discussed its principium, composing andthe recovery of its distorted output signal. Finally we gave out the design of the ACradiometer.3 The focal plane system is the main passive MMW detecting and imaging system atpresent.

由于對金屬目標(biāo)的探測在軍民應(yīng)用兩方面都很重要三级片毛片AV网站，因此文中圍繞著對金屬目標(biāo)探測這一中心，對幾種相關(guān)物體的毫米波輻射特性進(jìn)行了大量測量實驗日韩高清无码黄色视频，獲得了相關(guān)數(shù)據(jù)最新日韩中文字幕国产，并進(jìn)行了亮溫反演，給出了計算結(jié)果我和子的性关系免费观看。2毫米波輻射計是接收物體毫米波輻射的高靈敏度接收機(jī)AV大全在线观看麻豆，是所有被動毫米波探測成像應(yīng)用的核心部件，因此文中對毫米波輻射計進(jìn)行了相關(guān)研究一本大道久久加勒比香蕉，重點研究了用于掃描探測的交流輻射計的原理看美女免费操逼逼视频、構(gòu)成及其失真信號的補(bǔ)償問題，并完成了一種交流輻射計的系統(tǒng)設(shè)計自慰福利在线。3毫米波焦平面系統(tǒng)是當(dāng)前被動毫米波探測成像的主流系統(tǒng)德国三级片网站。

Because thedetecting of the metal object is important in both military and civil applications, wefocused on the aim and do lots of measurement of the radiometric characteristic ofseveral objects correlating to the metal detecting and got the datum. We also completedthe inversion algorithm of retrieving the brightness temperature from the measureddatum.2 The radiometer is the apparatus of incepting the MMW radialization and is the key partof all passive MMW detecting and imaging system. Our emphasis of radiometerresearch was on a kind of AC radiometer, we discussed its principium, composing andthe recovery of its distorted output signal. Finally we gave out the design of the ACradiometer.3 The focal plane system is the main passive MMW detecting and imaging system atpresent.

由于對金(來源：ABc1C論文8f8f網(wǎng)www.abclunwen.com)屬目標(biāo)的探測在軍民應(yīng)用兩方面都很重要，因此文中圍繞著對金屬目標(biāo)探測這一中心日本天堂网2019，對幾種相關(guān)物體的毫米波輻射特性進(jìn)行了大量測量實驗欧美老熟妇性交杂，獲得了相關(guān)數(shù)據(jù)，并進(jìn)行了亮溫反演国产黄色网站A，給出了計算結(jié)果欧洲自拍。2毫米波輻射計是接收物體毫米波輻射的高靈敏度接收機(jī)亚洲中文字幕超碰97，是所有被動毫米波探測成像應(yīng)用的核心部件，因此文中對毫米波輻射計進(jìn)行了相關(guān)研究99精品视频全部免费观，重點研究了用于掃描探測的交流輻射計的原理黄色网站免费a、構(gòu)成及其失真信號的補(bǔ)償問題，并完成了一種交流輻射計的系統(tǒng)設(shè)計亚洲美女A视频。3毫米波焦平面系統(tǒng)是當(dāng)前被動毫米波探測成像的主流系統(tǒng)九九手机在线视频。

RECCO is a passive system, which means that there is no need for batteries or maintenance and nothing to turn on or off.

RECCO是一個中性的系統(tǒng)，意味著不需要電池和維護(hù)强奸在线第一页，也沒有開關(guān)欧美性荡视频。

Lastly, in accordance with the actual situations of the prototype structure of mosque pagoda, based on the similar relation of model experiments, a model structure of mosque pagoda with a similar coefficient of 1/10 is designed and fabricated. Earthquake simulating shaking table tests are performed on the model structure of pagoda in the cases the AB type passive control system with SMA dampers is erected or unerected. The leading earthquake responses like the relative drift at the top of the main tower and the small tower, interstory drift ratio, acceleration, and cracking process of the pagodas body etc. are studied. The operational behaviors involving the deformation capacity and energy dissipation capacity is tested for passive control system with SMA dampers under the earthquake excitation, and the corresponding control mechanism and regularity is also analyzed. Furthermore, the performance changes and protection effectiveness is comprehensively evaluated while the model structure of pagoda is seismically protected or not.

最后，根據(jù)光塔原型結(jié)構(gòu)的實際情況欧美色色成，以模型試驗的相似關(guān)系為基礎(chǔ)91无码视频一区，設(shè)計并制作了一個相似系數(shù)S先锋在线资源网站，為1/10的光塔模型結(jié)構(gòu)26uuu亚洲欧美日韩在线，并先后進(jìn)行了未安裝和安裝A、B型SMA阻尼器被動控制系統(tǒng)光塔模型結(jié)構(gòu)的地震模擬振動臺試驗成年人黄片爽爽爽看看看看看看，研究了模型結(jié)構(gòu)在3種不同工況下午夜性交影视，主塔頂部和小塔頂部的相對位移、層間位移角和加速度以及塔體開裂等光塔結(jié)構(gòu)的主要地震反應(yīng)免费看一级a片网站，測試了SMA阻尼器被動控制系統(tǒng)在地震激勵下的變形能力和消能能力等工作性能黑人国产在线，分析了相應(yīng)的控制機(jī)理和控制規(guī)律，并從總體上評價了光塔模型結(jié)構(gòu)抗震保護(hù)前后的性能變化和保護(hù)效果免费黄片子。

The taxiing performance of an active control system landing gear and that of a passive system landing gear are compared.

對主動控制起落架和被動起落架的滑行性能進(jìn)行了比較黄业网站在线免费观看。

Combined with the Innovative Foundation Project in High Technological Development-Plan of Ministry of National Science and Technology (i.e. a research on passive localizing system based on a non-co-operative transmitter like as Television and FM broadcast), we investigated on signal detection and estimation methods in passive localizing system in detail.

結(jié)合科技部高技術(shù)發(fā)展計劃創(chuàng)新基金項目——&基于電視、調(diào)頻廣播等非合作性照射源的無源探測定位系統(tǒng)&成熟老熟妇高潮XXXXX，作者對基于電視日韩视频05、調(diào)頻廣播信號的無源探測定位系統(tǒng)中的弱信號檢測與參數(shù)估計算法進(jìn)行了深入研究。