radio jamming 中文意思是什麼
radio jamming
解釋
無線電干擾-
It ’ s often used to cover the special target in special area or is used to make false attacking situation. these small light and cheap jamming devices always are thrown to the area near the target. they are manipulated or not to jam the foe ’ s military electronic device such as radar and radio etc. the device weighs about one kilogram and is as big as mauley
分散式干擾是在無人機機載和氣球載干擾機等形式上發展起來的電子對抗設備，通常是為了掩護特定區域的目標或在某一地區內製造假的進攻態勢，將眾多體積小、質量輕、價格便宜的小型干擾源散布在接近被干擾目標的空域、地域上，自動地或受控地對選定的軍事電子設備進行干擾。 -
Radio-jamming was nothing new.
干擾無線電臺廣播這種事情並不新奇。 -
It ' s jam characters are similar to radio - frequency noise jamming. relayed frequency shift jamming has good effect on pc radar
轉發移頻脈沖干擾對于脈沖壓縮雷達是極為有效的干擾。 -
Radio - frequency noise jamming is an effective jamming to pulse compressed ( pc ) radar. it shows the best jam quality when it ' s bandwidth equals to the jammed signal ' s bandwidth and it ' s central frequency equals to that of the jammed radar ' s receiver
射頻噪聲干擾對脈沖壓縮雷達是一種有效干擾，在其帶寬等於雷達信號帶寬，中心頻率對準雷達的中心頻率時具有最佳的干擾品質。 -
Then by the method of computer simulation, the following jamming patterns are made quantitative analysis, radio - frequency noise jamming, continuous single tune jamming, continuous noise amplitude - modulated jamming, relayed frequency shift jamming, and the key factor which affect the quality of these jamming patterns
然後在此基礎上，通過計算機模擬分析，定量地討論了射頻噪聲干擾、連續正弦波干擾、轉發移頻脈沖干擾以及影響它們干擾品質的因素，並以壓制系數為衡量標準，進行了干擾效能分析。 -
With frequency stabilizer and high frequency magnetic leakage suppressor, this device prevents leakage of electro magnetic radiation to avoid jamming other electrical instruments such as television, radio etc
置有高周波頻率穩定器和高周波漏磁壓制器，此裝置能免除電波的漏出以免干擾別的電子裝置，像電視機、收音機等。 -
At a minimum, the issue needs to be brought to the forefront of the public agenda. top administration officials already have promised to raise the issue with the chinese through diplomatic channels and other discussions so we re hopeful that there might be some movement on that front. the bbg also has filed complaints of " harmful interference " with the international telecommunications union monthly since august 2000, claiming chinese jamming violates radio regulations
美國廣播事務管理委員會就這些問題向國際電信聯盟正式提出申訴。據莫厄爾說，美國廣播事務管理委員會要求正式討論他們所關注的問題，但中國政府還沒有做出積極反應。莫厄爾說，只有「國會和行政部門採取一致的戰略」才能解決這個問題。 -
Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain
通過大量的理論分析和模擬實驗，得到了一批具有一定價值的結論：從信號處理的角度出發，對于脈沖式干擾，能夠運用時域滑動窗口積累的方法去掉，並且通過預測插值得到較好的恢復；對于高斯白噪聲干擾，在時頻變換域內應用時頻分析方法可減小其對分散點目標的干擾；對于射頻噪聲，通過平均距離頻頻法和頻域陷波的方法可以去掉；從改變合成孔徑雷達系統角度出發，類似雙基地雷達能夠避免各種干擾，對發射信號進行調幅，調相以及改變調頻斜率都是較好的抗干擾方法。 -
The autocorrelation function of the pn code is similar to that of the white noise, which has the randomicity. the pn code phase modulation fuze just works on the basis of this characteristic. the fuse, having excellent cut - off performance of the distance and strong anti - jamming capability, is one of the radio fuze of the predominant performance
偽碼引信是利用偽隨機序列的自相關函數類似於白噪聲相關函數的隨機特性而工作的，這種引信距離截止特性好，抗干擾能力強，是一種性能優越的無線電引信。 -
With the development of software radio, the signal can be digitized at rf or if, then be received using digital beamforming in baseband, which can extremely improve the capacity and enhance anti - jamming capability of wireless communication
隨著軟體無線電技術的發展，採用全數字處理，在基帶通過對接收和發送信號的波束賦形，可以極大提高無線通信系統的容量和抗干擾能力。 -
Ds / fh hybrid spread - spectrum communication system base on software radio is researched in theory. performance of the system is analyzed and evaluated in anti - jamming by software simulation. so it testify feasibility of the system
本課題針對這方面作了詳細地討論，就基於軟體無線電技術的ds fh混合擴頻通信系統從理論方面進行了研究，通過模擬，對系統在抗干擾方面的性能作了分析，並進行了性能評估，從而驗證了系統的可行性。 -
Then on one hand, author makes researches of anti - jamming against pulse jamming 、 gauss white noise jamming and radio frequency noise jamming from the side of signal processing. author exercises much signal processing knowledge of time - domain sliding window accumulation 、 wavelet analysis 、 time - frequency analysis and linear prediction and carries out many simulation experiments. on the other hand, author proposes the anti - jamming methods of using a sar similar to double - base radar and modulating the amplitude 、 the phase of emission signal and changing the frequency modulation slope from the side of changing sar system model
作者首先提出了合成孔徑雷達抗干擾的定義、分類以及評價抗干擾方法好壞的主客觀標準；然後，一方面從信號處理的角度出發對脈沖式干擾、高斯白噪聲干擾以及射頻噪聲干擾進行了抗干擾研究，其中運用了時域滑動窗口積累，小波分析，時頻分析以及線性預測等信號處理知識，做了大量的模擬實驗；另一方面，本文基於改變合成孔徑雷達系統模式提出了利用類似雙基地雷達來抗干擾，以及對發射信號進行調幅、調相以及改變調頻斜率來抗干擾，同樣做了相應的模擬實驗。
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