pulse compression signal 中文意思是什麼

pulse compression signal 解釋
脈沖壓縮信號
  • pulse : n 1 脈搏；有節奏的跳動；【動物；動物學】脈沖（波）；脈動。2 意向；傾向。3 【音樂】拍子，律動。vi ...
  • compression : n. 1. 壓縮；壓緊；濃縮，緊縮。2. 加壓；壓抑。3. （表現的）簡練。4. 應壓試驗。
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  1. 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。
  2. Analysis of compression characteristics of gaussian signal pulse in semiconductor optical amplifiers by utilizing rectangular control pulse

    矩形控制脈沖在半導體光放大器中對高斯信號脈沖的壓縮效應分析
  3. Second, research and analyze the feature of signal of pulse compression radar, and discuss the principle and characteristic of pulse compression technique, that are linear frequency modulation and phase coding. the above two mathematic model is constructed, and shift - frequency noise is imposed on the models, and anti - nose ability is evaluated and simulated

    通過對脈沖壓縮雷達的信號特徵的研究和分析，通過研究線性調頻和相位編碼脈沖壓縮技術的原理和特點，建立了這兩種雷達的數學模型，並對此進行移頻干擾和相位編碼雷達干擾，並進行干擾性能的評估和模擬研究。
  4. 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。
  5. This dissertation mainly studies the pulse compression waveform designing and signal processing, including the following aspects : firstly, by the pulse compression basic theory, the linear frequency modulation signal ( lfm ), binary phase - coded signal ( bc ) and stepped - frequency ( sf ) signal are discussed respectively including the ambiguity function, pulse compression and spectrum characteristic

    本文主要進行脈沖壓縮雷達波形設計以及信號處理方面的研究，主要體現在以下幾個方面:首先，從脈沖壓縮基本理論出發，分別給出了線性調頻、二相編碼和頻率步進信號的模糊函數、脈沖壓縮以及頻譜特性，對多普勒性能進行了簡要分析。
  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. With the development of digital technology, getting pulse compression signals with direct digital synthesis has been in general use these days. it is widely used to generate pulse compression signal using dds method

    隨著現代數字技術的發展，直接數字波形合成（ dds ）的方式獲得脈沖壓縮信號已為現代雷達普遍採用。
  8. Firstly, the principle of high resolution sar and theoretical imaging model were concisely introduced. pulse compression for line frequency modulation pulse signal, resolution of range direction and azimuth direction, and doppler history were discussed subsequently. in accordance with sar signal processing, range immigration was also involved

    本文首先分析了合成孔徑雷達高分辯力成像機理和sar成像理論模型，討論了線性調頻脈沖信號的匹配濾波（脈沖壓縮） 、 sar距離特性、方位特性和多普勒歷史，同時針對sar成像信號處理，分析了成像處理的基本原理和成像處理中的距離遷移校正等關鍵問題。
  9. 2. analyse lfm signal compression performance with high compression ratio ， program the correlative test software ， compare the pulse compression performance with various window - functions and get the satisfied results. 3

    分析了lfm信號在高壓縮比情況下的壓縮性能，並編制了相關測試軟體，對不同加窗情況下的脈沖壓縮性能進行了比較，取得了滿意的效果。
  10. The processing of these hybrid signals is different from the single modulation signal, that is pulse compression twice. with respect to the hybrid signals including sf, the high range resolution is analysis, and the method for reducing sidelobe level is

    對于與頻率步進信號復合的組合脈壓信號，分析了它們的合成高距離分辨效果，並對其距離旁瓣的抑制方法進行了探討。
  11. With the progress of digital signal processing technique, pulse compression processing system are developed from analogue or digital - analogue system to all digital ones. digital pulse compression processing can be divided into pulse compression processing in time domain and pulse compression processing in frequency domain

    隨著數字信號處理技術的進步，脈壓處理系統也從模擬式、數模結合式發展到全數字式，數字式脈壓處理又分為時域脈壓處理和頻域脈壓處理。
  12. The fast development of digital signal processing technology provides us with the possibility of numeralization of radar pulse compression processing

    同時，數字信號處理技術的迅猛發展和廣泛應用，為雷達脈沖壓縮處理的數字化實現提供了可能。
  13. According to the carrier wave leakage and mirror wave interference in the signal generation, this paper analyzes the source of waveform distortion and its influence to signal spectrum and pulse compression result

    針對生成信號中存在的載漏和鏡像等失真，本文對波形失真來源及其對信號頻譜及脈壓結果的影響進行了全面分析與模擬。
  14. Except, the error model of orthogonal modulation and double frequency technology were studied. third, the design and implementation of ultra wide band lfm generator were studied. an ultra wide band lfm pulse compression signal generator with 400mhz carrier and 300mhz absolute bandwidth was developed successful

    ?第三部分在理論分析的基礎上對超寬帶lfm信號源系統的設計和實現技術進行研究，成功研製出了中心頻率為400mhz ，帶寬為300mhz ，重復頻率為1khz ，脈寬為20 s的線性調頻信號。
  15. Discuss the sar imaging theories and sar echo signal processing, simulate the single - point target echo and multi point target echo imaging in software method ， realize the parallel processing algorithm of bearing pulse compression on hhpc and also study its real time performance

    3 .討論了sar成像的基本原理及其信號處理，對點目標和多點目標回波成像進行了軟體模擬，並在hhpc上實現了數據轉置和方位脈壓并行處理演算法，對方位脈壓的實時性進行了研究。
  16. This thesis mainly studies the digital pulse compression technique and analyses the pulse compression performance of lfm signal with high compression ration. it also simply describes the basic theories of sar imaging and signal processing. based on these theories and high performance digital signal processing chip adsp21160, we successfully design and realize a frequency domain digital pulse compression system on hhpc board with four adsp21160 embedded

    本文主要研究了合成孔徑雷達成像技術中距離和方位頻域數字脈沖壓縮技術，著重分析了高壓縮比下lfm信號的脈壓性能，簡述了合成孔徑雷達成像的基本原理和信號處理，在此基礎上結合高性能數字信號處理晶元adsp21160研製成功了基於hhpc板的二維頻域數字脈沖壓縮處理系統。
  17. Based on the components of analogue receivers, all kinds of influences on the signal from all kinds of components are given, then the influences on the result of pulse compression from the quadrature demodulators is focused on

    接著分析各個模擬接收機組件對回波信號產生的各種幅相誤差，這些誤差會對信號頻譜和脈壓結果產生影響，並重點分析正交解調幅相誤差對它們的影響。
  18. The interference and its processing method of long sequence phase - modulation signal of multitargets in pulse compression are studied emphatically

    重點研究了長序列調相信號多目標對脈沖壓縮的相互影響及其處理方法。
  19. In this paper, the waveform parameter design, signal processing, doppler effect caused by target motion and pulse compression are analyzed theoretically

    文中對該體制雷達的波形參數設計進行了理論分析，以及目標運動的多普勒效應對這種信號的影響。
  20. Agrawal ' s theory model of soa ca n ' t simulate accurately the amplified signal pulse shape in soa when the pulse width is as short as several picosecond. so we simulate accurately the peak power, full width half maximum, rising time and falling time of amplified pulse after considering the gain compression, gain asymmetry, gain shift, gain variable with situation and time. with ultrahigh velocity dense wavelength division multiplexing ( dwdm ) and optical time division multiplexing ( otdm ) developing, we demand more and more short signal pulse and more signal channels

    但當信號脈沖的寬度只有幾個皮秒時， soa傳統的agrawal理論模型已經不能完全準確地模擬soa對信號脈沖的放大情況，在此基礎上，我們在全面考慮soa的增益壓縮、增益非對稱和漂移、增益隨位置和時間變化的載流子壽命等物理機制的情況下，對皮秒超短高斯信號光脈沖經soa放大后的脈沖的峰值功率、脈沖半值全寬度、脈沖的上升時間和下降時間等重要物理參量進行了準確模擬和詳細研究。
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