The usual precondition guaranteeing input - to - state stabilization by exploiting the concept of zero - state - detectability is weakened , and a class of linear systems subject to saturation by using the results above is input - to - state stabilized 借助零状态可探测概念，减弱了通常文献中所需的前提条件，在此基础上研究了一类输入饱和线性系统的输入到状态镇定。
The general structure and the principle of fault detect based model are given , fault model of sensor , actuator and state in system are founded , and the sufficient and indispensable conditions of fault detectability in control system are given 研究了基于模型故障检测的基本结构和原理，建立了传感器、执行器和系统状态的故障模型，给出了控制系统故障可检性的充要条件。
Optical imaging techniques offer high spatial resolution but are limited to preclinical use . nuclear techniques , including reporter genes and direct cellular radiolabeling , hae good detectability but more limited spatial resolution 光学成像技术具有较高的空间分辨率，但在临床前应用有局限性。包括报告基因和细胞直接放射性标记的核技术具有很好的灵敏度，但却在空间分辨率方面有较多局限性。
It is generally provided with some characteristics such as imperceptibility , detectability and robustness etc . the performances of audio watermark are discussed firstly , then some classic audio watermark algorithms were listed and meanwhile their robustness test result and idea of improving were suggested 本文首先讨论了音频水印的性能指标，然后列举了一些经典的音频水印算法，并给出了对它们进行鲁棒性的测试结果及改进意见。
And it ' s application objects from conventional antenna entend to automobile or aircraft , etc . in the military domain , it ' s common to test missiles , aircraft , or similar weapons platforms for their radar cross - section in an attempt to reduce detectability by means of radar 它的应用范围也从最初的天线测量，延伸到了现在的汽车、飞行器等。在军事领域，为了降低导弹、飞行器和各种武器平台的截获率，需要进行雷达散射截面( rcs )的测量。
This dissertation is the expanding of the military project of ‘ 95 ’ advance research , a novel multi - modulation technique designing radar signal waveform is introduced on the links with the project of the national natural science fundation of china ( nsfc ) , named " produce and process the multi - modulation signal of the sensor with strong detectability and identifiability " . based on the analysis of the equal - probability - distributing fsk / psk multi - modulation signal , we construct a new pseudo - random fsk / psk multi - modulation signal and we design and simulink on the computer the partly - matched processing signal of this signal . the purpose of the design is to construct a processing signal to combine with the pseudo - random fsk / psk multi - modulation signal , so that we could get a strong response of the target 本论文是‘九五’军事预研项目“低截获概率雷达波形研究”的扩展与深入，同时结合国家自然科学基金项目“强探测强识别传感器新型复合调制信号产生及处理”展开。在分析等概率分布的fsk / psk复合调制信号的基础上，构造了一种新的伪随机fsk / psk复合调制信号及其非完全匹配处理的设计及仿真。设计的目的是能对伪随机fsk / psk复合调制信号进行处理的处理信号，以期获得对所探测目标信息的强探测。
Non - affine nonlinear systems via bounded controls and kalman - yakubovitch - popov lemma of affine passive systems are stabilized . several kinds of nonlinear systems with uncertainty by using stability theory of cascaded passive systems are stabilized robustly . the relative weaker sufficient conditions of stabilizing a class of driven - driving systems by using the concept of zero - state - detectability are put forward 运用仿射无源系统的kalman - yacubovitch - popov引理，饱和镇定非仿射非线性系统；运用联级无源系统的稳定原理鲁棒镇定几类不确定系统；运用零状态可探测概念，给出了镇定从驱动系统相对较弱的充分条件。
Millimeter wave system has many distinct advantages such as miniaturizing system components , increasing frequency band width , providing higher detectability , uneasily influenced by atmosphere conditions , etc . this makes millimeter wave technique get the increasingly extensive application in radar , communications , electronic warfare , guidance , remote sensing , radiation survey , therefore the research of millimeter system is very vital for civil , the industry , national defense 毫米波系统具有可以使元部件小型化、增加系统带宽、提供高分辨率以及受大气条件的影响较小等许多明显的优点,这使得毫米波技术在雷达、通信、对抗、制导、遥感和辐射测量等技术领域中得到日益广泛的应用,所以毫米波系统的研究对于民用、工业、国防具有重要的意义。
Secondly , some new concepts including mean value controllability , mean square controllability , mean value observability , mean square observability , mean value stabilization , mean square stabilizability , mean value detectability and mean square detectability of networked control systems are defined in this dissertation . some sufficient or necessary conditions for networked control systems with corresponding properties are presented 提出了网络控制系统的均值能控、均方能控、均值能观、均方能观、均值可镇定、均方可镇定、均值可检测和均方可检测等新概念；得到了网络控制系统具有相应性质的充分或必要条件。
2 ) evaluation of robustness against noise removal attack . by analyzing the mathematical models of noise removal attack , we deduce some indexes for robustness evaluation defined in frequency domain , power spectrum and locally variances of difference images . 3 ) evaluation of the detectability of lsb information hiding algorithm 考察了密信信号隐藏后差值图象的频域特性、功率谱特性和局部方差分布特性，建立了频域特性与线性滤波攻击效率、功率谱特性与维纳滤波攻击效率、局部方差分布特性与最大后验估计攻击效率之间的关系。
