線性調制信號 的英文怎麼說

中文拼音 [xiànxìngdiàozhìxìnháo]
線性調制信號 英文
linear modulated signal
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  • 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
  1. Through the detailed analysis of the aaf, the defection of using chirp - fourier transform in guidance radar signal processing is pointed out

    通過對加速度模糊函數的形態分析也指明了針對線性調頻信號的二次相位匹配處理（ chirp - fourier變換）在應用到制導雷達信號處理中所存在的缺陷。
  2. In this dissertation the pulse compression performances of linear frequency modulation signals ( lfm ), nonlinear frequency modulation signals ( nlfm ) and design of their side - lobes suppression filters are analyzed, and design of the pulse compression program of 4 pieces of adsp21160 in the processing unit and the program of single piece of adsp21160 and fpga in the interface unit of the pulse compression system are introduced in detail

    全文分析了線性調頻信號（ lfm ） ，非線性調頻信號（ nlfm ）的頻域脈沖壓縮方法及其旁瓣抑制濾波器的設計和優化，詳細介紹了脈沖壓縮系統中基於4片adsp21160的處理單元和單片adsp21160和fpga組成的介面單元的軟體設計。
  3. That noise fm signal emalates tv sound fm signal researchs above two question about correlative detection and restrainning sidelobe. the research ' s result is compared with linear fm emulational research ' s

    用噪聲調頻信號對電視伴音調頻信號進行模擬研究上述提到的相關檢測和旁瓣抑制問題，並與線性調頻信號模擬研究相比較。
  4. The methods of range sidelobe suppression about the lfm and bc signal are discussed in detail

    著重討論了線性調頻信號和二相編碼信號的旁瓣抑制方法。
  5. Chirp signal is a kind of pulse - compressed signal with large time - bandwidth products achieved through linear frequency modulation. it has high resolution in range because of its great bandwidth

    線性調頻信號是通過線性頻率調制獲得大的時寬帶寬積的一種脈沖壓縮信號，具有大的帶寬，因此有高的距離分辨力。
  6. Lfm signal is a classic pulse compression signal and it is one of the ultra - wideband radar waveforms, there is sophisticated theoretical basis of its generating, receiving and processing

    線性調頻信號作為一種典型的脈壓信號，同時也是超寬帶雷達調制波形中的一種，其產生和接收處理已具備了較為成熟的理論研究。
  7. To improve anti - jamming technique by spread spectrum close to monochromatic frequency, so that enhance the ability of anti - active - jamming and anti - passive - jamming, anti reconnaissance, anti - radiation missile, anti - stealth, by means of multi frequency spread spectrum and hopping spectrum instead of mono - frequency spread spectrum, realizing strong processing system for anti - interference signal, providing the method of generating of chirp signal and corresponding matched filter system

    摘要為改進線性調頻雷達系統所採用的在單色頻率點附近擴譜抗干擾技術，加強制導雷達站具備抗有源、無源干擾，反偵察，抗硬殺傷的反幅射導彈和反隱身的能力，通過將單頻點擴譜改為多頻點擴譜跳譜，實現了高抗干擾信號處理系統，給出方案中在中頻段實現的線性調頻信號產生方法以及對應的匹配濾波處理系統。
  8. With the noise being added to a proper value, the system will show shochastic resonance and enhance the output signal. the sr technology is better than the traditionary signal detecting method. the best virtue of it is using the noise to enhance the capability of detecting the weak signal. and it will not harm the signal at the same time

    隨機共振系統是一個非線性系統，在一個小的周期性調制信號作用下同時輸入噪聲和信號，當噪聲增強到某一強度的時候，信噪比不僅不會降低，相反系統會產生隨機共振從而使輸出信號得到顯著的增強。
  9. For lfm signal, we demonstrate the method of employing hamming weighting, spectrum correcting and phase modulation distortion

    對線性調頻信號的旁瓣抑制介紹了經典海明窗加權處理方法、頻譜修正以及相位預矯正幾種方法。
  10. 3. in the process of restraining distance and doppler planar sidelobe, linear fm signal restrains sidelobe well, noise fm signal has definited impact on restrainning sidelobe in concrete circumstance by tring diversified methods

    3 、在二維距離-速度旁瓣抑制中，線性調頻信號抑制效果良好，而抑制噪聲調頻信號的旁瓣須根據具體情況、用多種方法進行嘗試、有一定旁瓣抑制效果。
  11. In this thesis, the characteristics of underwater acoustic channel were analyzed, the mcm technique and the lfm signal which were used in the multicarrier modulation high bit - rate underwater acoustic communication system was discussed in detail, the important parts in system designing were examined

    論文對水聲通道特性進行了分析，就多載波高速水聲通信系統中用到的多載波調制技術、線性調頻信號進行了詳細論述，論述了系統設計中的重要環節。
  12. In the information environment of radar there are some signals such as regular and binary phase modulated pulse signal and linear frequency modulated signal are used widely

    在雷達信號環境中，最常見的信號包括常規脈沖調制信號、脈內二相編碼信號以及線性調頻信號。對這些信號的載頻測量在電子戰中具有重要意義。
  13. Aiming to solve this problem, the work of the thesis is shown below : 1. the product ambiguity function ( paf ) - based adaptive time - frequency distribution is proposed. in specific, two adaptive methods for kernel design, the radon - paf based method and the paf - lag - varying filter based method, are presented

    本文針對這一問題開展了如下工作: 1 .提出了基於乘積性模糊函數的自適應時頻分佈，並給出了兩種針對線性調頻信號的自適應核函數設計方法，包括基於radon - paf濾波和基於paf時變濾波的方法，使得該時頻分佈能夠在增強時頻聚集性的同時抑制交叉項。
  14. A high - resolution method for frequency measurement is strongly introduced in the paper, which is aim at detecting the frequency of regular and binary phase coding modulated pulse signals with high frequency precision. considering the popularity of linear frequency modulated ( lfm ) signal in electronic systems, this paper then referred a radon - stft arithmetic to calculate the carry frequency of lfm signal. both of these methods referred above are implemented in the signal if detection software

    針對常規脈沖調制信號和脈內二相編碼調制信號，本文提出一種高精度的數字化測頻方法，以提高信號載頻測量精度;線性調頻信號作為一種典型的非平穩信號在各種領域應用十分廣泛，但對其載頻的數字化測量比較困難，本文利用圖像處理中的radon變換與信號時頻分析中的線性變換相結合的演算法來完成對其載頻的測量。
  15. The system employs multicarrier modulation ( mcm ) technique as the modulation method, and linear frequency modulation ( lfm ) signal as the synchronization signal and digital signal processor ( dsp ) as the hardware ' s core chip

    該系統選用多載波調制技術進行調制，選用線性調頻信號為其同步信號，選擇數字信號處理器為硬體核心晶元。
  16. One new method that the uwb signal can be received ambiguously has been presented in this dissertation. furthermore, the sampling lfm signal becomes two sine signals with different frequencies based on two different delay processes. based on fft and remainder algorithm, the modulation rate and initial frequency of sub - sampling lfm signal are estimated precisely and unambiguously in negative snr

    該方法通過在數字域對信號進行兩路不同的延時和余數定理實現欠采樣條件下超寬帶線性調頻信號的調制斜率和初始頻率的無模糊估計，在不降低參數估計精度的前提下，解決了欠采樣方法引起硬體復雜度增加的問題。
  17. However, wigner - ville distribution is n ' t enough effective applied to multicomponent signals processing for existing crossed items, sometimes signal items completely ca n ' t be distinguished from distribution for serious disturbance of crossed items. in addition, we can utilize the wigner - ville distribution to reduce the random noise of signals in that wigner - ville distribution is n ' t enough sensitive to noise. in theory, radon - wigner transform of lfm signals produces a distinct maxima ( peak ) in the radon - wigner plane, so it describe effectively the feature of the lfm signals and suppress effectively the crossed items along with wigner - ville distribution. we can utilize the radon - wigner transform to reduce the random noise of lfm signals in that the noise distrbute as dot at random in the radon - wigner plane

    另外，維格納-威利分佈是完全有噪的，但它對噪聲是不敏感的，因此可以利用維格納-威利分佈實現對含噪信號的去噪處理。理論上線性調頻信號的radon - wigner變換在radon - wigner平面上以尖峰形式表現，因此radon - wigner變換能夠有效描述線性調頻信號的物理特徵，抑制在維格納-威利分佈中產生的交叉項。在radon - wigner平面中隨機噪聲是呈點狀隨機散布開的，因此利用radon - wigner變換還能對含噪線性調頻信號進行去噪處理。
  18. Using the method to process the linear frequency model signal and the hybrid radar waveform discussed above, the levels of side - lobe are suppressed more, especially for the hybrid radar waveform and the hybrid radar wavefomi is satisfied with the needs of radar

    通過這種方法分別對線性調頻信號和組合波形進行處理后，其時間旁瓣得到了有效地進一步地抑制，特別對組合波形進行處理后，其時間旁瓣大小能滿足雷達的要求。
  19. And the adaptive beam forming using smi ( sampled matrix inversion ) method is discussed and validated through simulation. the signal processing procedure of phased array radar using lfm signal, matching filtering, distance side - lobe restrain are discussed and video signal processing procedure simulation is completed

    本文還研究了相控陣雷達的信號處理過程（針對線性調頻信號） ，對線性調頻信號的匹配濾波，距離旁瓣抑制進行了模擬分析，完成了線性調頻信號的視頻處理過程的模擬。
  20. After comparing several analog and digital generation methods of lfm signal, this paper confirms the system scheme as direct digital synthesis plus quadrature modulation. combined with agilent arbitrary waveform generator and phasor signal generator, a generation system is established and a ultra - wideband signal, whose bandwidth is 1ghz and carrier frequency is 4ghz, is generated

    通過對幾種模擬與數字線性調頻信號的產生方法的比較，本文採用了以直接數字波形合成（ ddws ）加正交調制的系統方案，並結合實際的儀器設備，產生了帶寬為1ghz ，載頻4ghz的超寬帶線性調頻信號。
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