载噪比,CNR英语短句,例句大全

载噪比,CNR
1)CNR载噪比
1.CNR Analysis of CDMA used in Fiber to the Railway;CDMA在FTTR中应用的载噪比分析
2.Effect of Initialization Conditions on the Reflectivity and CNR of Ge_2Sb_2Te_5 Phase-change Optical Disk;初始化条件对Ge_2Sb_2Te_5相变光盘反射率和载噪比的影响
3.The influence of the ionosphere,rain,multipath distortion,Doppler shift,the CNR of received signal and the design of the antenna used in the satellite are described.阐述了大气层、降雨、多径失真、多普勒频移对星载AIS通信的影响,接收到的星载AIS信号的载噪比以及星上天线的设计等。

英文短句/例句

1.New Algorithm for GPS C/N0 Estimation一种GPS信号载噪比估计的新算法
2.Error Performance Testing Analysis Under Different Overload Noise Ratio不同载噪比条件下误码性能测试分析
3.A Study on Carrier Tracking FLL for Extremely-low-CNR Highly-dynamic Signals极低载噪比高动态信号的载波跟踪锁频环研究
4.Analysis of Relation between C/N and S/N in Satellite Communications;卫星通信中载噪比与误码率的关系及测试分析
5.Study and Simulation of Acquisition Technique for Extremely Low-CNR High-dynamic Signals极低载噪比高动态信号的捕获策略研究与仿真
6.Carrier Recovery and Carrier to Noise Estimation in High-quality Navigation Receiver;高性能导航接收机中的载波恢复与载噪比估计研究
7.A Carrier Frequency Estimation Method of Non-cooperative Underwater Acoustic Direct-Sequence Spread-Spectrum Signal Under Low-CNR非合作水声低载噪比直接序列扩频信号的载频估计方法
8.The initialization conditions have great effect on the reflectivity contrast and CNR of Ge 2Sb 2Te 5 phase change optical disk.Ge2 Sb2 Te5相变光盘的反射率对比度和载噪比受初始化条件影响很大。
9.A New Algorithm and Performance Analysis for Frequency Refinement of P Code under Low C/N0低载噪比下P码接收精频测量新算法及性能分析
10.Calculation of SNR of a satellite CCD camera based on MODTRAN基于MODTRAN模型计算星载CCD相机信噪比
11.Research of carrier synchronization for low SNR and high dynamic signals低信噪比高动态信号的载波同步研究
12.Research on Carrier Recovery for Very Low SNR极低信噪比环境下的载波同步算法研究
13.Design of QPSK Carrier Loop for Low SNR Signals with Large Frequency Offset大频偏低信噪比条件下QPSK载波环的设计
14.Carrier-frequency Capture Base on Bispectrum Estimation under Extremely Low SNR and Large Doppler Frequency Shifting极低信噪比大多普勒频移条件下基于双谱实现载频提取
15.INFLUENCE OF BACKGROUND RADIANT POWER ON THE SIGNAL-TO-NOISE RATIO OF SPACE-BORNE LASER ALTIMETER背景辐射功率对星载激光高度计信噪比的影响研究
16.frequency modulation noise level on carrier载波的调频噪声电平
17.randomly-modulated carrier随机调制载波(一般指噪声调制的载波)
18.1. Methods of estimating baud rate, Signal to Noise Ratio (SNR) and reference phase are investigated.1．研究了自适应调制中波特率，信噪比和载波相位等参数的估计算法；

相关短句/例句

C/N载噪比
1.Influence of Output Level to Modulator C/N;输出电平对调制器载噪比的影响
2.Primary Research on C/N Rate of Fibre-optical Network and Nonlinear Distortion;光纤网络载噪比与非线性失真初探
3.This paper describes three points:it s hard to measure C/N accurately,video signal from far-front- end makes the relation between C/N and S/N_(w) dis-corresponding,DTV demands C/N lower than analog TV for receiving a good quality picture.论述了3个观点：准确测量载噪比是很困难的；远地前端的信号使C/N和S/N_((W))的关系失衡；数字电视比模拟电视具有更强的抗噪声性能。
3)carrier to noise ratio载噪比
1.Accuracy considerations in the G/T value measurement of the earth station using carrier to noise ratio direct method;载噪比直接法测量地球站G/T值的精度研究
2.The difficulties met in the automatic measurement of the carrier to noise ratio (CNR) for magneto-optical disks is discussed, and the spectrum signature of the signals produced by spectrum analyzer is analyzed.分析了实现磁光盘载噪比CNR指标自动化测试的障碍和谱信号的特性，针对CNR测试中存在的特殊性，即测试精度依赖于对载波频率处的信号谱幅值和噪声谱幅值的测量误差，而与两者出现的时间无关。
3.We introduce the concepts about carrier to noise ratio(CNR),CTB,XM and Eb/No in the field of CATV.介绍了有线电视系统中的载噪比(CNR)、组合三次差拍比(CTB)、交调指数(XM)以及门限值(Eb/No)的含义,并讨论了载噪比与组合三次差拍比、交调指数以及门限值之间的关系。
4)carrier-to-noise ratio载噪比
1.The noise figure of erbium-doped fiber amplifiers (EDFAs) can be derived from the degradation of carrier-to-noise ratio by the cable TV analyzer.介绍了利用CATV分析仪,通过测量光放大器引起的系统载噪比劣化来推算光放大器噪声系数的方法,给出了噪声系数与载噪比劣化之间的关系。
2.The computational formula and every influence factor of the carrier-to-noise ratio of CATV system are discussed, the concrete methods of lifting carrier-to-noise ratio are put forward.探讨了CATV系统载噪比的计算公式及各种影响因素,并提出了提高载噪比的一些具体措施。
3.Then the multiplex efficiency and the influence of intermodulation term on receivers\' carrier-to-noise ratio are thoroughly analyzed.首先提出了易于卫星实现的3路信号Interplex复用结构,然后深入分析了复用效率和交调项对接收机的载噪比影响,最后以现代化GPS卫星Block IIR-M的L1信号复用为例,给出了定量分析结果。
5)carrier noise ratio载噪比
1.In this papers,we analysed comprehensively the noise of CATV system incorporating Erbium Doped Fiber Amplifier,and derivated out of calculating Carrier Noise Ratio′s equations for such CATV system.本文全面分析了加入掺铒光纤放大器的ＣＡＴＶ系统噪音，推导出了这类ＣＡＴＶ系统的载噪比的计算公式
2.So the paper presented an improved design which adaptively adjust the loop bandwidth according to the carrier noise ratio o.文中提出了按照GPS信号的载噪比自适应地调节GPS的环路带宽的方案,这将使GPS接收机在任何条件下包括存在干扰时保持最佳状态。
6)C/N0载噪比
1.New Algorithm for GPS C/N0 Estimation一种GPS信号载噪比估计的新算法
2.The Research of Estimation Method for GPS C/N0GPS信号载噪比估计算法的研究