pseudo-noise 中文意思是什麼

pseudo-noise 解釋
偽噪聲
  • pseudo : adj. 〈口語〉假，偽，冒充的。
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  1. In the process of gps triple frequency observables, the rms of the integer ambiguity isn ' t fit for detecting and correcting cycle slips for the pseudo - range noise

    摘要在gps三頻非差觀測數據的處理中，由於偽距噪聲的影響，利用原始的偽距和載波相位觀測數據估計的模糊度誤差比較大，不能用於探測和改正周跳。
  2. In chapter 5 the jamming such as phase modulation noise, binary pseudo random sequence and multiple pseudo targets are discussed

    第五章對雷達干擾進行了闡述，主要的干擾信號有連續噪聲調相干擾、偽隨機碼噪聲干擾、多假目標干擾。
  3. For it has many unique advantages, pseudo - noise linear m - sequence binary phased coded cw signal is widely used in the new generation air defense systems

    偽隨機m序列相位編碼連續波信號體制由於其固有的優點，在新一代地空制導雷達中得到了廣泛的應用。
  4. Noise - the shadow samples are offseted from each other in a pseudo - random way, which artificially soften the borders of the shadows

    噪聲陰影采樣值的間值呈偽隨機數序列，將逼真地模擬陰影的邊界。
  5. We analyzed the anti - jam and band inside anti - interfere performance of the system, and the low probability intercept ( lpi ) of the traditional direct sequence spread spectrum ( dsss ) modulations in the uav platform ' s applications. so a new modulation technique using a multi - level pseudo noise ( pn ) code has been presented. the new multi - level pn code is built from a high speed pn code through a low passed filter ( lpf )

    分析了系統抗阻塞式干擾和抗帶內頻帶干擾的性能，以及常規bpsk qpsk - dsss調制在無人機通信中存在的安全隱患，提出了一種用多電平pn碼進行擴頻調制的方法：採用高速pn碼，經過低通濾波器，產生多電平pn碼進行直序擴頻調制，能在低信噪比情況下有效抵抗平方率檢測器對系統載波的檢測。
  6. The reasons focusing only on ray travel times are " noise tolerance could be enhanced and the sensitivity to the environment model mismatch may be reduced by neglecting amplitude information ; phase ambiguity is eliminated by employing the group delay of arriving wave packets ; travel times are pseudo - linear functions of sound speed profiles of the medium, and the perturbation of ray travel time is much smaller than sound pressure ' s

    之所以選擇聲傳播時間的原因是：噪聲容限可以得到提高，並且傳播時間的計算可以不考慮聲壓的信息，從而降低了對環境模型失配的敏感性；相位的起伏也可通過到達包絡的群延時來消除；傳播時間是介質聲速分佈的偽線性函數並且傳播時間的起伏遠小於聲壓的起伏。
  7. Time domain noise is simulated by the mathematical pseudo uniform or normal random variable and coupled to deterministic signals such as rectangular ( rect ), triangular ( tria ), unit step exponential ( uexp ), even exponential ( eexp ), or gaussian ( gauss ) pulse voltages in finite number of time samples in finite time period

    用數學類真均勻或常態隨機變數模擬時域雜訊，與定然時域訊號如，方形、三角、指數遞減、或高斯等電壓脈波在有限時域?圍之有限個時域取樣結合。
  8. After observing the correlative of pseudo noise code, we analyse the main cause of multi - access interference, and build the receiving model of multiuser system. in the thesis the optimum multiuser detectors with minimum probability of error and the near - optimum detectors are intrduced, and then pic multiuser detection is improved on

    介紹了最佳多用戶檢測器和次最佳多用戶檢測器，並對現有一些并行干擾抵消多用戶檢測器進行了介紹並提出了改進的措施。對採用改進的演算法的系統用montecarlo演算法進行了誤碼性能分析。
  9. Secondly, we prove the self - relation function and correlation function of pseudo noise code sequence and obtain the shift register generating circuit from it ' s generating function

    然後，通過偽碼的生成多項式，導出偽碼的移位寄存器生成電路，並分析了偽碼的自相關特性和互相關特性。
  10. Pseudo - random noise code

    偽隨機噪聲碼
  11. Prn - pseudo random noise

    偽隨機噪聲
  12. Pn pseudo noise

    偽隨機噪聲
  13. 6 chang c c, cong j. pseudo pin assignment with crosstalk noise control. in proc. international symposiums on physical design, san diego, ca, april 9 - 12, 2000, pp. 41 - 47

    雖然上述很多模型在計算電感上都比較精確，但是用於大規模計算時，計算復雜度太大以至於無法應用到布線過程的噪聲優化中。
  14. However, the traditional spreading codes are usually deterministic pseudo - noise ( pn ) codes, which can be duplicated, potentially compromising the transmission security. then the time varying and random spreading codes are expected

    為了提高擴頻通信系統的抗干擾性、降低信號被截獲的概率，我們希望擴頻碼是隨機的、動態變化的。
  15. Based on the statistics characteristic of prc - phase - modulation cw phase - array guidance radar, this thesis discusses the signal processing method and cfar algorithm of multiple repetition frequency pseudo - noise m - sequence phase coded signal

    本文結合偽碼調相連續波信號體制的特點，深入研究了多參差重復頻率偽隨機m序列相位編碼信號的處理方法和恆虛警檢測演算法。
  16. Traditional spread spectrum communication adopts pseudo - noise ( pn ) codes as spreading codes. however, pn sequence is fixed and periodic, which threatens the transmission security. self - encoded spread spectrum ( sess ) employs random spreading sequences that are extracted from the random information data, abandoning the fixed sequence

    傳統的擴頻通信廣泛採用偽噪聲（ pseudo - noise ， pn ）序列作為擴頻序列， pn序列具有類噪聲特性，但它實際上是確定的周期序列，容易被復制。
  17. Simulations on the key technique of spread spectrum communications are studied here, according to the characteristic of lduwarc system, issues concerning pseudo - noise codes, spread spectrum method, correlation receiving and synchronization. we also design an error correction code for the system

    論文還對擴頻通信的關鍵技術進行了模擬研究，針對遠程聲遙控系統的特點，討論了擴頻碼、擴頻方式、相關接收和同步問題，同時討論了適合遠程聲遙控系統的糾錯編碼技術。
  18. With the development of the electron and information technology, the blind de - spread of spread spectrum signals in non - cooperation communication has been a research hot spot. the blind detection and estimation of the chip rate and period of pseudo noise ( pn ) sequence are the precondition for the realization of blind de - spread

    隨著電子戰和信息戰技術的發展，非合作通信條件下擴頻信號盲解擴成為擴頻通信領域的研究熱點，擴頻信號pn碼速率和碼周期的盲檢測和盲估計是實現盲解擴的前提。
  19. And then, the soft / hard threshold was used to shrink the wavelet coefficient of the signal and reconstruct the signal. the method can suppress pseudo - gibbs phenomena on the singularity points of signal produced by de - noise algorithm based on wavelet shrinkage

    此方法對含噪信號進行循環平移，利用軟閾值或硬閾值函數對含噪信號的小波分解系數進行收縮操作，並重構信號，再進行反向的循環平移，能有效地抑制pseudo - gibbs現象。
  20. We propose a new method of calculating the best threshold according to the characteristic of pn ( pseudo noise ) code

    根據偽隨機碼的特性，提出了一種新的求取最佳檢測門限的方法。
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