線性調頻信號 的英文怎麼說

中文拼音 [xiànxìngdiàobīnxìnháo]
線性調頻信號 英文
chirp 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...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 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...
  • 調頻 : frequency modulation （fm）; frequency adjustment調頻磁帶錄音機 f m magnetic tape recorder; 調頻...
  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 analog - digital channelized receiver is studied. the optimized system, spectrum reconstructing and accuracy signal frequency estimation algorithms are researched

    本文研究了模數混合通道化接收方案，著重研究其優化結構和關鍵技術以及線性調頻信號參數估計演算法。
  3. Based on the theory of pulse compression, the essentiality of lfm signal is discussed

    首先介紹了線性調頻信號脈沖壓縮的實現方法。
  4. Based on the theory of radar, the essentiality of lfm signal was discussed

    首先從雷達的基本理論出發，討論了採用線性調頻信號的必要性。
  5. It points out that the uwb signal can be reconnoitered efficiently with sub - sampling method. 3

    說明了利用欠采樣方法對超寬帶線性調頻信號偵察的可行性。
  6. Two detection methods of chirp signals are presented in the dissertation : the cyclic autocorrelation detection method and the correlation detection method of cyclic autocorrelation function. it is shown that the two methods both have an excellent performance of blind detection. the performance analyses of the two detection methods are both carried out for additive noise or multiplicative noise, and the output signal - to - noise ratio ( snr ) expressions of the two methods are also derived

    通過研究提出了兩種線性調頻信號的檢測方法?基於循環自相關函數包絡的檢測方法和基於循環自相關函數的相關函數包絡的檢測方法，兩種方法均可實現信號的盲檢測，有良好的檢測性能，文中還分析了加性噪聲及存在乘性和加性噪聲情況下兩種檢測方法的性能，推導出了輸出信噪比公式。
  7. 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。
  8. The united signal for the isar signal processing is called the cross - range dimension signal. the cross - range dimension signal of the target with nearly tangent motion is a linear frequency modulated signal

    由推導的準切向運動目標的方位向信號的相位表示式可以看出，此信號近似為線性調頻信號。
  9. Considering the fact that the analog system is not so good as the digital system on the respect of variation of bandwidths and on the respect of switch between different bandwidths. this paper proposes to adopt the dds ( direct digital synthesis ) technique that produces chirp signals of different bandwidths to improve the situation of losing tracks for the ocean satellite altitude indicator in measuring coarse surfaces

    現在的雷達基本上採用模擬系統產生線性調頻信號，由於模擬系統在帶寬變化方面和不同帶寬間切換方面不如數字系統，本文採用dds （ directdigitalsynthesis ）技術產生不同帶寬的線性調頻信號以改善海洋衛星高度計在測量粗糙表面時存在的失鎖現象。
  10. 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。
  11. 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。
  12. In this paper, firstly, radar pulse compression is introduced briefly, summarize three primary pulse compression signals : lfm, nlfm, pcm

    本文首先對雷達脈沖壓縮的原理作了簡要的介紹，進一步詳細分析了應用最廣泛的線性調頻信號，並簡要介紹了非線性調頻信號和相位編碼信號。
  13. Large time - band product signals such as linear frequency modulation signals ( lfm ), nonlinear frequency modulation signals ( nlfm ), phase coded signals and so on are one of key technologies for pulse compression radar systems

    具有大時寬帶寬積的信號，如線性調頻信號、非線性調頻信號、相位編碼信號等是雷達應用脈沖壓縮技術的關鍵之一。
  14. Linear frequency modulated ( lfm ) signals as the most popular pulse compression signal are a typical kind of time - varying, nonstationary signals, so applying the wigner - ville distribution into lfm signals has more advantages than conventional methods

    雷達脈沖壓縮技術中所使用的線性調頻信號是一類典型的時變非平穩信號，採用時頻分析的研究方法處理線性調頻信號有著傳統方法無法比擬的優點。
  15. Chirp - subpulse stepped frequency signal is one of the high distance resolution signals with merits of stepped - frequency signal and chirp signal

    Chirp子脈沖頻率步進信號兼有頻率步進信號和線性調頻信號的優點，是一種高距離分辨力信號。
  16. 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。
  17. 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。
  18. This system can process linear frequency modulation signals ( lfm ), nonlinear frequency modulation signals ( nlfm ) and taylor quadriphase code signals with time width under 42 s and band width under 5mhz. the experimental results demonstrate that the specification characteristics meet the requirements of practical radar systems

    該系統可處理時寬在42 s以內?帶寬在5mhz以下的線性調頻信號（ lfm ） ，非線性調頻信號（ nlfm ）和taylor四相碼信號，且技術指標完全滿足實用系統的設計要求。
  19. Generating lfm / nlfm signals whose intermediate frequency is 28mhz and bandwidth is 3mhz and 5mhz and time width is from 6us to 300us based on dds has been discussed in this dissertation. the conclusion is that the wave quality of lfm signal generating through dds is satisfactory and that of nlfm is not perfect

    本文基於器件dds對產生中心頻率為28mhz 、帶寬為3mhz和5mhz 、時寬從6us到300us的不同時寬和帶寬的線性和非線性調頻信號方面進行了探討，得出了dds產生線性調頻信號（ lfm ）的波形質量可取得滿意的結果，但對產生非線性調頻信號（ nlfm ）的波形質量卻存在不足。
  20. 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。
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