signal power 中文意思是什麼

signal power 解釋
信號功率
  • 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...
  • power : n 1 力，力量；能力；體力，精力；（生理）機能；〈常 pl 〉才能。2 勢力，權力，權限；威力；政權；權...
  1. Railway signal power supply panel - part 3 : all - relay interlocking signal power supply panel

    鐵路信號電源屏.第3部分:繼電聯鎖信號電源屏
  2. Secondly, the paper researches blind estimation of signals parameters, including the carrier frequency, signal to noise ratio and symbol rate of digital modulations. thirdly, with the combination of parameters from early studies on the decision theory, a set of robust feature parameters are extracted from signal power spectrum and the power spectrum of the second and fourth power of signal. based on these parameters, the proposed scheme is able to recognize 12 types of common used modulations, namely ask 、 2fsk 、 msk 、 4fsk 、 psk 、 qpsk 、 / 4qpsk 、 8psk 、 am 、 dsb 、 ssb 、 fm

    接著，對信號功率譜、平方譜及四次方譜進行研究，針對通信中常用的調制方式，結合前人提出的基於決策理論中的特徵參數，設計了一組對信噪比和信號調制參數不敏感的分類特徵參數，利用上述參數完成了一種基於信號頻域的識別方法，可以對ask 、 2fsk 、 msk 、 4fsk 、 psk 、 qpsk 、 / 4qpsk 、 8psk 、 am 、 dsb 、 ssb和fm這12種常用調制方式進行識別。
  3. Technology precision measures for weak light signal power

    微弱光信號功率的高精度測量技術
  4. The signal power perturbation on receivers caused by air target as well as the receiver ' s position information are used to extract the exact location of the target

    廣播、電視信號被空中的飛行器擾動以後，在接收端形成接收功率的波動。
  5. Railway signal power supply panel - part 1 : general rules

    鐵路信號電源屏.第1部分:總則
  6. We have successfully designed an experiment system for the no invasion blood pressure measurement with our own ip. in our research and develop task we have done a lot work to study foreign instrumen and design ideas. this experiment system is based on msp430 series mpu with excellent erformance and applies advanced digital signal process and intelligent technology. in hardware design, the following means were applied : after a lot of experment and fully knowing about the characteristic of the pulse wave signal, we have designed the accurate and credible circuit to collect the pulse wave signal ; power circuit, communicaion circuit, power drivers circuit have been disigned for the instrument. in software design, the following arithmetic were applied : 1

    軟體方面進行了以下演算法研究: 1 .綜合試驗各種數字信號處理方法對波形進行平滑處理: 2 .採用lms自適應方法對脈搏波信號進行了降噪處理; 3 .應用微分閉值法提高了脈搏波信號的檢出率，有效識別了運動干擾引起的偽波信號; 4 .利用測振法基本原理並進行大量實驗的基礎上，提出了比較準確可行的收縮壓和舒張壓的識別演算法，使測振法在本無創血壓儀中得到了完整而充分的應用。
  7. 1550nm is chosen as the work wavelength, cassegrain transmitting - receiving antenna as the optical antenna of the system through the elucidation of how to choose the work wavelength and optical antenna of comm - unication system. the structure and theoretical design parameter of apt sub - system have been presented through the discussion of the optical signal power estimation of apt sub - system, beam divergence angle, pointing error, and error signal extraction. compared with existed optical wireless communication system, the design scheme proves applicable

    通過對通信系統工作波長選擇、光學天線選擇等闡述，選擇了1550nm作為系統工作波長、卡塞格倫（ cassegrain ）收發合一天線作為系統光學天線；通過對apt子系統功率測算、束散角和瞄準誤差、誤差提取信號等的討論，給出了apt子系統結構和理論設計指標，並將其與現有的光無線通信系統進行比較，說明該設計方案是可行的。
  8. The application of spread spectrum technology can increase dimension of signal in order to improve signal power and achieve code gain

    擴頻技術的應用可以增加信號維數以提高信號功率也可獲得編碼增益。
  9. Railway signal power supply panel - part 4 : computer - interlocking signal power supply panel

    鐵路信號電源屏.第4部分:計算機聯鎖信號電源屏
  10. Because of the advantages pf no range blind area, high range resolution and low signal power, recently lfmcw radars attracted more and more attention. the theories, key technologies and application develop rapidly

    線性調頻連續波雷達由於具有無距離盲區、高距離解析度、低發射功率等方面的優點，近年來受到廣泛關注，其理論、關鍵技術和應用得到迅速發展。
  11. The amplification characters of er3 + / yb3 + co - doped fiber are studied in our experiments. when the doped fiber length is 50cm, the amplified signal power is 170mw and the gain is 12. 2db in the case of signal power of 10. 8mw and pumping power of 2. 5w

    本論文著重研究了採用一級放大時，信號光在雙包層光纖中的放大特性，截取50cm的光纖，在輸入泵浦光功率為2 . 5w ，信號光功率為10 . 8mw時，獲得了170mw的放大信號光輸出，增益為12 . 2db 。
  12. Because of the advantages of no range blind area, high range resolution, low signal power and simple structure, lfmcw ( linear frequency modulation continuous wave ) radar attracted more and more attention recently

    線性調頻連續波（ lfmcw ）雷達是一種通過對連續波進行頻率調制來獲得距離與速度信息的雷達體制系統。由於其具有無距離盲區、高距離解析度、低發射功率、結構簡單，便於集成化等優點，適合用於液位測量系統。
  13. At last, this paper analyzed the influence of the inversive receiver to the chracteristic of the clutter and the ratio of signal power and the noise power, discussed the effective detection of target signal in correlated clutter, and then put forward a new method naming multi - periods shift accumulation for detecting moving target when not knowing the exact movement parameter

    最後，本文分析了倒置接收對目標回波信噪比及雜波特性的影響，討論了在相關雜波區對回波信號有效檢測的方法。針對如何在彈目相對運動參數未知的條件下對高速運動目標進行積累檢測這一問題，提出了一種多周期移位積累的新方法。
  14. The purpose of the subject is to design a monitoring system which is small, reliable, low price and complete function for railway signal power, the signal system ' s heart. the system is suitable to the unwatched power room of the locality, while the work such as collecting, communication, alarm and so on is accomplished by the way of long - range control

    本課題研究的目的是為鐵路信號系統設備的心臟?鐵路信號電源設計一個體積小、安全可靠、價格低、功能完備的監控系統，使之適用在當地無人執守的電源室里，而一切諸如採集、通訊、報警等工作都可以通過遠程監控的方式來實現。
  15. Surface electromyography signal power spectrum during static load using two - dimensional mapping analysis

    靜態負荷表面肌電信號功率譜的二維地形圖分析
  16. We have do data analysis work. it is mainly work for our to show pressure signal, observe peak value of signal and compute signal power spectram. while we have conceive that used wavelet transform to distill pressure signal characteristic

    頻率域處理主要作了利用周期圖法估計壓力信號的功率譜，提出進一步的處理設想，利用小波分析的一些方法識別壓力信號的特徵。
  17. The solution can greatly upgrade the anti - jamming ( especially white noise ) ability of fh system. according to the ratio of noise power to signal power, the length of code can be selected to guarantee the normal communication

    該方案能有效的提高跳頻系統對抗白噪聲的能力，根據干擾相對于信號的強度，採用適當長的碼，跳頻系統將總能正常運行。
  18. A decrease in signal power as measured between two points

    信號能量在兩點間測量出來的減小量。參閱signal 。
  19. Railway signal power supply panel - part 7 : 25hz signal power supply panel

    鐵路信號電源屏.第7部分: 25hz信號電源屏
  20. Railway signal power supply panel - part 6 : block section signal power supply panel

    鐵路信號電源屏.第6部分:區間信號電源屏
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