E - eccm 中文 - EN166

eccm ECCM ＝ electronic counter-co...

eccrine
In order to evaluate the electronic protection capability of the antiship missile active - passive multimode seeker , and also provide simulation data for the devising of the multimode guided antiship missiles , several studies are performed in this thesis : the modern ship ecms are systematically studied , and the electronic counter - countermeasures ( eccm ) of the active - passive multimode seeker are analyzed . a study is performed on the modeling and simulation ( m & s ) of the missile - ship engagement scenario . models needed for the engagement simulation are established 針對艦船電子干擾措施具有的特性,研究了反艦導彈與艦船的對抗仿真建模問題,建立了艦船運動模型、艦載輻射源模型、艦載電子干擾實體模型以及海戰中艦船的干擾實施模型;同時,建立了復合制導反艦導彈主被動復合導引頭的仿真模型、反艦導彈的運動模型以及導彈制導規律模型。
Secondly , many rules and methods of evaluation on effects of radar eccm are roundly summarized , and they are also appreciated and analyzed . by the way of constructing the evaluating model for general radar eccm evaluation and expanding the evaluation indexes , the idea of evaluation is extended ( 2 )系統總結了現有的諸多抗干擾效果評估指標、準則與方法,評析了它們的優缺點;結合傳感器航跡融合理論對雷達抗干擾效果評估指標集進行擴充。
Fourthly , the theory about fuzzy mathematics is applied to the evaluation on effects of radar eccm , and the fuzzy synthetic models are founded to evaluate effects of radar eccm . using the models , computer experiments are made to testify the feasibility of the methods above ( 4 )建立了雷達抗干擾效果評估的模糊綜合評估數學模型,重點針對單部雷達對抗單部干擾機的情況,進行了計算機仿真實驗,驗證了該方法的可行性。
Effects of radar eccm are important indexes to judge radar eccm and the characteristic of eccm equipment . it has great practical significant for both radar and jammer to evaluate eccm effects properly , objectively and easily 雷達抗干擾效果是衡量雷達對抗中抗干擾措施是否有效和雷達設備性能優劣的重要指標,如何準確、客觀、快捷地評估雷達抗干擾效果,對雷達、干擾雙方均具有重要的現實意義。
A interception probability reduction theory by means of comparing the rppm with constant pri pulse sequence is also analysised in this paper , further more the strong properties of eccm of the rppm is discussed and analysised 此外，本文還介紹了隨機脈位調制信號比較于等重復周期( pri )脈沖信號來降低信號被截獲概率的原理，討論并分析了隨機脈位調制脈沖多普勒雷達較強的抗干擾能力。
Lastly , a model to evaluate effects of radar eccm ability based on neural network is founded . how to use it in evaluating is investigated according to computer simulations . and the objectivity , practicability and convenience are analyzed and discussed 建立了具有學習功能的抗干擾效果綜合評估模型,并結合仿真實驗結果,對上述方法的客觀性、實用性和快捷性等進行了分析討論。
The requests of “ four counteraction “ capability for radar networks are pointed , the principles of radar netting are presented , the evaluation indexes of eccm performance for radar networks are discussed 指出了“四抗”能力對雷達組網的要求，給出了雷達組網的原則，討論了雷達組網eccm性能評估的指標。
In this dissertation , a study is performed about rules and methods of evaluation on effects of radar eccm . firstly , the representative methods of radar eccm are briefly introduced 論文的主要工作如下: ( 1 )在簡要闡述雷達抗干擾原理的基礎上,對目前的典型抗干擾技術進行了討論和分析。
Random pulse position modulation ( rppm ) signal not only has good resolution of distance and velocity , but also has low probability of interception and strong properties of eccm 隨機脈位調制信號不僅具有良好的距離和速度分辨力，而且具有較低的被截獲概率和較高的抗干擾性能。
Thirdly , a traditional way of evaluation on effects of radar eccm based on adding model is studied . and some improvements are set up , which can make the methods more effective ( 3 )研究了雷達抗干擾效能評估的傳統加權評估方法,并對該方法做了一定改進,使其更加有效。
Whatever it is radar , eccm equipment , communication equipment or instrument , frequency source with high stability is needed to guarantee the quality of carrier signal 無論是雷達、電子對抗，還是通信、儀器設備等都需要高穩定度的頻率源，以保證載波信號的質量。