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- The detection performance of receiver to noise jamming signal was improved remarkably by accumulation detection. 通過(guò)積累檢測顯著(zhù)地改善了接收機對噪聲干擾類(lèi)信號的檢測性能。
- In order to avoid such problems as symbol sliding, phase shift of pseudorandom noise code and carrier phase offset, an improved method of frequency offset estimation is proposed. 摘要為避免采樣頻率偏差給衛星導航接收機帶來(lái)的符號位滑動(dòng)、偽隨機噪聲碼相位移動(dòng)和載波相位偏差等問(wèn)題，提出了一種改進(jìn)的頻率偏差估計方法。
- New system Radar have good performances and ECCM capability, makes the conventional noise jamming and deception jamming failed. 新體制雷達的出現和應用極大地提高了雷達性能和抗干擾性，使傳統的噪聲干擾和欺騙干擾相對失效。
- From simulation results, these methods can effectively combat multitone jamming and partial-band noise jamming. 這兩種分集結合能有效抗多波道單音干擾或部分頻帶干擾，對抗干擾效能是非常良好的。
- Abstract: Seism monitoring under ground has higher accuracy with less noise jamming from the ground surface. 中文摘要: 井下地震監測可減少地面噪聲干擾、提高地震監測精度。
- In the solution of FTTR,the received radio signals was multiplied by a pseudorandom noise (PN) at Terminal Stations(TSs) ,and encapsul ated into the envelope of optical signal by IM of LD. 在光纖到鐵路沿線(xiàn)(FTTR)方案中對終端站接收的無(wú)線(xiàn)信號進(jìn)行擴頻編碼，進(jìn)入光纖通道并到達中心站。
- In the first system, we consider three cases, multitone jamming (MTJ), broad-band noise jamming (BBN) and partial-band noise jamming (PBN). 在第一個(gè)系統中環(huán)境為蓄意人為干擾或窄頻帶非人為干擾的環(huán)境，其中考慮三種干擾型式包括寬頻雜訊干擾、部分頻帶雜訊干擾及多波道單音干擾。
- The smart noise jamming technique is presented based on DRFM due to the increasing of the anti-jamming ability of some new radar system. 針對新體制雷達抗干擾能力強的特點(diǎn),提出了以DRFM為基礎的多種靈巧噪聲干擾波形設計方法。
- This method is compared with classical noise jamming technique by means of SJR (Signal to Jamming Ratio) gain and jamming power gain of SAR system. 討論了這種干擾方法對合成孔徑雷達圖像的干擾效果。
- Noise jamming includes blocking, aiming and random pulse jamming, and deception jamming includes transmitting, responding and scattering jamming. 有源壓制干擾主要包括阻塞干擾、瞄準式干擾和隨機脈沖干擾；
- To implement effective jamming on the modem coherent radar, this paper proposes one smart noise jamming realization scheme based on convolution modulation. 摘要為了對現代新體制相參雷達實(shí)施有效的干擾，提出了一種基于卷積調制的靈巧噪聲干擾技術(shù)實(shí)現方案。
- But once the seeker is under a strong noise jamming,the receiver of the seeker becomes saturated,and the maladjusted angle as well as the variance of angle measure become s... 但是在強噪聲干擾下,導引頭接收機處于飽和狀態(tài),失調角及測角方差?lèi)夯?從而使其不再具有任何利用價(jià)值,必須采取措施加以解決。
- After the signal is decomposed and reconstructed by wavelet functions, the unmeasurabled noise jamming is eliminated, then use power spectrum coefficient method to analyse it. 實(shí)驗表明這種方法與單一使用功率譜比值法的方法相比,動(dòng)作模式識別率得到了提高。
- In this paper,through the analysis and processing of the measured data of a 2D shipborne radar,an algorithm based on binary integration detection is presented for active noise jamming resistance. 本文結合某型艦載兩坐標雷達外場(chǎng)實(shí)測數據的分析和處理,提出了采用二進(jìn)制積累檢測算法對有源噪聲干擾進(jìn)行抑制的方法。
- The paper discusses the importance of anti - interference in mechatronics device, analyzes the sources of noise jamming and makes further approach to a antijamming structure for mechatronics device. 討論了機電一體化裝置抗干擾的重要性,分析了噪聲來(lái)源,并探討了一種機電一體化裝置抗干擾的結構。
- Noise jammer is one of the primary jamming that radar seekers have to antagonize. 噪聲干擾是雷達導引頭需要對付的主要干擾形式之一。
- How am I going to get out of this jam? 我怎樣才能擺脫困境呢？
- Research of a Noise Jamming Technique to SAR 合成孔徑雷達噪聲干擾技術(shù)研究
- He has spread a slice of bread with Jam. 他把面包片抹上了果醬。
- Because I lost my money I was in a jam. 我因為丟了錢(qián)而陷入困境。
