background signal

英 [ˈbækɡraʊnd ˈsɪɡnəl]

美 [ˈbækɡraʊnd ˈsɪɡnəl]

本底信号, 背景信号

英英释义

noun

• extraneous signals that can be confused with the phenomenon to be observed or measured
  1. they got a bad connection and could hardly hear one another over the background signals
  Synonym:background

双语例句

• This is accomplished by providing overviews of the necessary background in signal, system, probability, and random process theory required for the analog and digital communications topics.
  这些包括了综观必备的基础背景知识，例如讯号，机率，随机程序理论等。这些知识都是类比和数位系统所考虑的一些主题所必须要有的。
• Owing to the eliminating of the background signal compared with traditional signal-on electrochemical sensors by the introduction of the Y junction structure, the present platform could significantly low the detection limits and enhance the selectivity.
  与传统的signal-on传感器相比，本传感器由于Y型结构DNA的引入，提高了选择性，消除了背景电流，显著降低了检测限。
• 16 cases with osteosarcoma were performed coronal or sagittal msh-EPI-DWI with b value 600s/ mm2. The background signal was suppressed with SPIR. The ADC values of neoplastic solid parts, necrotic parts and neoplastic bone parts were measured respectively. Statistic analysis was performed. 3.
  对16名骨肉瘤患者行冠状位或矢状位msh-EPI-DWI扫描，b值取600s/mm2，应用SPIR抑制背景信号，分别测量其肿瘤实质区、坏死区及肿瘤骨的ADC值，并作统计学分析。
• Research and Design of Communication Dynamic Background Signal Generation System
  通信动态背景信号生成系统的研究与设计
• The method for detecting telomerase activity has the advantages of high sensitivity, simple operation and the background signal is low, not prone to false negative results etc.3.
  该方法对端粒酶活性的检测具有灵敏度高、操作简单和背景信号低，不易出现假阴性结果等优点。
• Principle and application of Diffusion Weighted Whole Body Imaging with Background Body Signal Suppression
  背景信号抑制全身扩散加权成像技术的原理及应用
• Evaluation of Two Different Sample Labeling Methods on Background Signal Intensities for 60 mer Oligonucleotide Microarrays
  两种标记方法对60mer寡核苷酸芯片背景信号影响的初步分析
• The background refreshing technology was adopted corresponding to variation of background, so as to guarantee the reality of the background signal and perform vehicle recognition well.
  主要采用了和背景变化相对应的背景刷新技术，保证了背景信号的真实性，可很好地完成车辆识别。
• This method uses the radial basis function neural networks ( RBFNN) to build one-step predictive model for chaotic background signal contaminated by observed noise, and combines the frequency way to process predictive error to detect the weak sinusoidal signal.
  该方法利用RBF神经网络对被噪声污染的混沌背景建立最优一步预测模型，结合频域处理的方法从预测误差中提取微弱正弦信号。
• Weak Signal Detection and Extraction from Chaos Background Signal
  混沌背景中的弱信号检测和提取