peak-to-peak signal 中文意思是什麼

peak-to-peak signal 解釋
峰-峰信號
  • peak : vi 1 瘦弱；消瘦，憔悴。2 減少，縮小 （out）。n 1 山峰，山頂；孤山。2 （胡須等的）尖兒；尖端。3 最...
  • to : adv 到某種狀態；〈特指〉到停止狀態；關閉。 ★也常和動詞結合，略去其後賓語，而構成成語： The door i...
  • 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. Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground

    針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。
  2. The columns and rows are constrained by each other. the simulations over binary symmetric channe ( lbsc ) and gilbert - elliott channel ( gec ) shows the performance is great improved, especially over burst error channel peak signal to noise ratio ( psnr ) is improved more. it is tried to be used in wireless communication system

    模擬結果表明，採用行列交替約束的約束維特比譯碼以後，性能得到較大的提升，尤其在突發錯誤通道中，傳輸的圖像經乘積編碼進行通道編碼與譯碼后峰值信噪比有明顯的提高。
  3. The retention tune of each of the three main peaks of the antibiotic fr - 008 is entirety identical to candicidin, except for one peak ( fr - 008d ), which can also be seen as a very weak signal on the hplc profile of candicidin with the same rt

    因此可以推測，這兩個菌株在表型上的差別有可能與鏈黴菌fr - 008中的線性質粒有直接的關系，但也不能排除染色體基因之間的差異。
  4. Simulation results show that the ringing artifacts around the image are reduced, the main information is preserved, and the peak signal to noise ratio ( psnr ) is higher than the known methods

    模擬計算表明，該方法可有效抑制圖像邊界的振鈴效應並保護了圖像的重要信息，並且比現有的方法具有更高的峰值信噪比。
  5. This modulator works with the guided - wave reflectance peak, in which the light intensity is changed by the variation of the refractive index of poled polymer due to the electro - optic effects. device performances have been theoretically and experimentally investigated. we also successfully carried out experiments of video signal transmission using the proposed modulator

    該調制器工作于金屬包覆波導的衰減全反射導模吸收峰，利用極化聚合物電光材料的折射率對導模吸收的影響來實現電光調制，並對器件的性能指標進行了實驗研究，同時利用製作的反射型電光調制器進行了視頻信號良好地傳輸實驗。
  6. Our item choiced msp430f149, a sort of singlechip as controller, designed our hardware electrocircuit to get the pulse wave singnal, and used msp430f149 to continuously search and calculate the peak - peak value of the pulse wave, and compute oxygen saturaction. in our study, in order to hurdle the dirft of baseline caused by the physiological difference of human bodies. we designed one circuit which can automatically regulate of the baseline of signal

    本文以msp430f149晶元為控制器，設計硬體電路提取脈搏波信號，連續檢測脈搏波峰?峰值，計算氧飽合度。本課題採用了基線自動調節電路，以克服不同人體生理差異引起的基線漂移；設計了直流截取電路和可控積分放大電路，以滿足臨床連續監測的特殊需要，解決信號飽和問題。
  7. The practical methods of signal pre - processing ( anti - disturbance filtering, data smoothing ) and character extraction ( differential limitation, absolute peak value, peak - to - peak value, area of wave and self - adaptive threshold adjustment ) are introduced

    並介紹了一些實用的信號處理和特徵提取演算法，包括可以實時運算的用於抑制干擾的濾波器和數據平滑演算法及用於定量分析的差分超限數、絕對峰值、峰-峰值、波形下面積和自適應門限調整等演算法及其應用。
  8. 2. clipping is used to reduce the papr ( peak - to - average power ratio ) of multicarreir gmsk signal. the conclusion is that the moderate clipping introduces small performance degradation

    採用削波方法來降低多載波gmsk信號的峰平比，結論是中等程度的削波只引起系統性能的略微下降。
  9. One of the major drawbacks of ofdm system is that the ofdm signal of the transmitter can have high peak - to - average power ratio ( papr ), which limits ofdm ’ s wide applications

    但是ofdm系統的一個主要缺點就是發送端的傳輸信號具有較大的峰值平均功率比（ papr ） ，這限制了ofdm技術的廣泛應用。
  10. An optimal algorithm for reducing the peak to average power ratio of ofdm signal

    信號峰值平均功率比的優化演算法
  11. Peak signal to noise ratio, psnr

    通過比較降噪前後的峰值信噪比
  12. Experiments are performed on monochrome and color image sequences, and performance is measured by the peak signal to noise ratio ( psnr )

    最後分別對單色和彩色圖像序列進行了實驗，利用峰值信噪比（ psnr ）來度量演算法的性能。
  13. On the other hand, image quality measures haven ’ t been improved correspondingly. the most popular image quality assessment ( iqa ) is still traditional methods whose representative is psnr ( peak signal - to - noise ratio )

    在對圖像質量要求愈來愈高的今天，傳統的圖像質量評價演算法已無法提供令人滿意的結果，成為圖像處理技術的薄弱環節。
  14. Based on adaptive quad - tree fractal image encoding scheme, the concept and algorithm of peak signal noise ratio ( psnr ) based on the fractal codes is put forward, and is used to match the similarities between images

    本文以自適應四叉樹分割的分形圖像編碼為基礎，提出了圖像的分形碼峰值信噪比的概念和演算法，在無須解碼的情況下，直接對分形碼來量化圖像間的相似性。
  15. In the final, we evaluated and analyzed the quality of a series of compressed images with the fuzzy image and psnr ( peak signal - to - noise ratio ) measurement. we have also made some other experiments such as add noise to the images and so on

    然後用峰值信噪比和本文提出的模糊圖像度量分別對一系列壓縮后的圖像質量進行評價，並且分析了它們的評價結果，最後還進行了對圖像添加各種噪聲等實驗。
  16. Simulation results show that both objective gains measured in psnr ( peak signal - to - noise ratio ) and visual improvements of reconstructed video can be achieved by utilizing introduced methods. chapter 5 gives the implementation of jvt - based nwarq technique

    實驗結果表明，各改進演算法能不同程度地提高和改善重建圖像的峰值信噪比（ psnr ）和主觀質量；第五章研究、實現並測試了基於jvt視頻編碼標準的無等待arq技術。
  17. In order to assess the performance of the proposed methods, we propose three types of image measures to quantify the performance compared to some other methods. the first type evaluates the fidelity of the reconstructed image by computing the peak signal - to - noise ratio and euclidean distance in cielab color space between the original and reconstructed image in smooth and edge regions respectively. the second type accounts for a major artifact ? zipper effect

    為了評估演算法質量，本文採用了三類評估手段:一是分別計算原始圖像與重構圖像在平滑區域與邊界區域的峰值信噪比與cielab顏色空間的歐氏距離來分析重構圖像的保真度;二是利用數學手段對重構圖像的一類主要失真現象? ? zipper效應進行定量評估;三是對硬體實現的成本與實際可行性進行了分析。
  18. 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。
  19. According to this, we propose a new way to renew the traditional method of subjective image quality evaluation, different to only use mse ( mean square error ) and psnr ( peak signal - to - noise ratio ) to evaluate merely on radiation distortion, and complemented quantitative description on compressed image distortion o it is significant to choose the format of video transferation and measuring precision calculation of tracking and measuring systems based on images

    中國科學院長春光機與物理研究所博士學位論文據此提出了不同於傳統的僅用均方誤差（ mse ）和峰值信噪比（ psnr ）來評價圖像灰度輻射畸變的新思路，補充了對壓縮圖像幾何畸變的定量描述。這對于基於圖像的測量跟蹤系統中數字圖像傳輸方式的選擇，以及評價壓縮解壓演算法對測量精度的影響有重要意義。
  20. The results showed that the magnitude and shape of mfl vary with the change of wire rope tension. with the stress increment, the peak to peak values of broken wires reduce obviously and the total strength of mfl signal becomes weak and the ripple of mfl signal curve appears

    試驗研究發現，漏磁密度的大小及形態都隨鋼絲繩張力的變化而改變，隨張力增加，斷絲峰峰值明顯減小，漏磁信號的總體波動強度減弱，漏磁曲線上有應力波紋出現。
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