signal to distortion ratio 中文意思是什麼

signal to distortion ratio 解釋
信號與失真比
  • 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...
  • 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...
  • distortion : n. 1. 歪扭,扭曲。2. 【電學】(信號、波形等的)失真;【物理學】(透鏡成像產生的)畸變;【醫學】扭轉,變形。3. 竄改,歪曲,曲解。adj. -al
  • ratio : n. (pl. ratios)1. 比,比率,比值;比例;系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達;求出…的比值;使…成比例。2. 將(相片)按比例放大或縮小。
  1. In this dissertation, researching from the basic concept of large signal network analysis, we discuss the measurement theory and technology of rf network nonlinearity and the characterization technology of intermodulation distortion in detail, and analyse some nonlinear characteristic excited with a one tone or multi - tone, such as am - am, harmonic distortion, intermodulation distortion, adjacent channel power ratio and how to qualitatively analyse nonlinearity of rf network to make the measurement and calibration

    本課題從大信號網路分析的基本概念出發,詳細討論了射頻網路非線性的測量理論和技術以及互調失真表徵技術,分析了在單頻音和多頻音信號激勵下的一些非線性特性,如am - am , am - pm ,諧波失真,互調失真( imd )和臨近通道功率比( acpr )等,以及根據包絡域方法定性地分析射頻微波網路的非線性特性,以此來進行射頻網路的非線性測量和校準。
  2. 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。
  3. Introduction to communication systems ? analysis and design of communication systems ; analog and digital modulation and demodulation, frequency conversion, multiplexing, noise and distortion ; spectral and signal - to - noise ratio analysis, probability of error in digital systems, spread spectrum

    通信系統基礎:通信系統分析和設計,模擬和數字調制和解調,頻率轉換,統計復用,噪聲和失真;譜分析和信噪比分析,數字系統誤碼率,擴展頻譜。
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