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- GPS weak signals 微弱GPS信号
- How to indentify weak signals rapidly? 如何快速捕获弱信号?
- Development of weak signal detectors. 微弱信号检测仪的研制。
- Its primary function is the amplification, mixing and filtering for the weak signal from the GPS receiver antenna to get the intermediate frequency signal used in the back-end correlator. 其功能主要是对从GPS接收机天线端接收到的微弱信号进行放大以及降频、滤波，得到后端GPS相关器电路正常工作所需要的中频信号。
- This paper illustrates a method to de noise of radar weak signal. 通过建立尺度空间新内积、新范数的方法来构造新型小波变换 ;并且实现了用该系列小波变换对雷达弱信号去噪的目的 .
- Used in TVs frequency channel conversion or weak signal import loop circuits. 适用于电视机频道转换或小信号输入回路。
- Used in TV frequency channel conversion and weak signal input loop circuits. 适用于电视频道转换或小信号输入回路。
- First,lock-in amplifier (LIA) is used for the detection of weak signal. 利用锁相放大器进行弱信号探测。
- The weak signals of ship are analyzed by means of higher order spectral technique based on Non Gaussian AR model. 摘要采用高阶谱分析方法，基于非高斯AR参数模型对舰船微弱水声信号进行双谱分析。
- In the same way, a faint background of random pulses could amplify weak signals sent from the feet to the brain. 同理，微弱的背景随机律动，有可能增强从足部传向大脑的微弱讯息。
- The most difficult part in NMR logging system is the detecting,amplifying and acquiring modules of the weak signals. 核磁共振测井中技术难度最大的部分,就是对微弱信号的检测放大及采集,需要采集的几纳伏的正弦信号伴随有极大的噪声。
- In weak signals detection of underwater acoustic domain, we can get high anti-Doppler performance using the Fractional fourier transform algorithm. ? 在水声信号处理领域;分数阶Fourier变换的良好的抗多卜勒性能有利于微弱信号检测.
- An electronic circuit or device that detects and strengthens weak signals, as from a radio receiver, for subsequent, more powerful amplification stages. 前置放大器电子线路或装置，用来探测并加强无线电接收机所发出的微弱信号，从而使其达到更加有力的增幅程度
- A quantitative analysis of the threshold level is important to improve the abilities of receiving weak signals for satellite television syst em . 门限电平的定量分析对卫星电视系统提高接收微弱信号的能力具有重要的指导作用。
- Windows Media Center cannot find, or seek, a radio frequency that has a weak signal. Windows Media Center无法找到或搜寻到信号微弱的广播频率。
- They may be compared to the weak signal coming in over a long-distance telephone line. 它们可以比做经过远距离电话线而来的弱信号。
- Your computer is tuned to a frequency that is not available or has a weak signal. 您的计算机调到不可用的频率或信号微弱。
- The spirit is willing but the flesh is weak. 心有余而力不足。
- The empirical mode decomposition (EMD) of weak signals submerged in a heavy noise was conducted and a method of stochastic resonance (SR) used for noisy EMD was presented. 摘要研究了强噪声混合条件下微弱信号的经验模式分解(EMD)问题，提出了一种基于随机共振降噪的EMD分解方法。
- Introduction : THE LNA is the block entrusted to amplify the weak signal received by the antenna in a reception system. 就是所谓的低噪声放大器，它决定手机接收机的整体性能；
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
