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

• Depth Profile from the P/ B Ratio and the Dependence of the Background Signal on Binding Energy of X-ray Photoelectron
  从光电子谱的峰背比及背景信号变化获得成分深度分布信息
• Weak Signal Detection and Extraction from Chaos Background Signal
  混沌背景中的弱信号检测和提取
• 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。
• On the Chaotic and Fractal Behavior of Background Signal during Submarine Detection with an Airborne Lidar
  激光雷达探潜背景信号的混沌和分形行为研究
• 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。
• The following contents are included in this study: the mode of operation for scanning search and track, analysis for the characteristics of target and background signal, formation of scanning wave-shape, target recogni-tion and relevant signal processing.
  内容包括扫描搜索与跟踪的工作模式，目标、背景信号特征的分析，扫描波形的形成，目标识别和有关信号处理等的研究。
• The research on the Background Signal Simulator is based on the idea of the Soft Wireless.
  背景信号模拟器的研究参考了软件无线电的思想。
• Because of stronger background signal and noise signal in measured signal of rub impact fault between rotor and stator in rotor system, it is difficult to obtain precise diagnosis result when wavelet transform is used to diagnose this fault.
  由于在转子系统动静件碰摩故障测试信号中背景信号、噪声信号较强，使得在利用小波变换进行故障诊断时，难以得到准确的结果。
• 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。
• The background signal of HF wave band achieves the expectant targets in the debugging of the signal electromagnetic environment simulator of the wireless communication system.
  在通信信号电磁环境模拟器的联调中，HF背景信号达到了各项预期指标。