noise figure
英 [nɔɪz ˈfɪɡə(r)]
美 [nɔɪz ˈfɪɡjər]
n. 噪声系数；噪声指数
双语例句
- As is known to us, the mm-wave system's T/ R front end is the key module that have heavily influence on the quality of transmitting signal and receiver's noise figure, sensitivity and output SNR.
众所周知，毫米波系统收发前端设计的好坏将直接影响毫米波发射信号的质量，接收机噪声系数，灵明度和输出信噪比等指标。 - Noise figure measuring set for microwave equipment
微波噪声指数测量仪 - Lowest noise figure of a RF transistor is not normally where the input is perfectly matched.
射频晶体管的最低噪声系数通常不在输入完全匹配的地方。 - The approaches of folded-switching and current-reuse are used to reduce the supply voltage and decrease the dc power consumption and reduce noise figure and increase gain and linearity.
混频器电路采用了折叠结构和电流复用技术，降低了电源电压，减小了直流功耗，降低了噪声、提高了增益和线性度。 - Many emphases are put on analyzing Y-factor method which is the most widely-used noise figure measuring method nowadays in practical engineering and study.
本文介绍了噪声系数的几种测量方法，重点分析了目前实际工程和研究中最常用的噪声系数测量方法&Y因子法。 - Measuring set of noise figure of TWT
行波管噪声指数测量装置 - Principle and Millimeter Wave Frequency Expanding Measurement Technology of Noise Figure Meter
氧化-还原电位测定仪噪声系数测试仪的原理及毫米波扩频测试技术 - Noise figure measurement techniques of 3 mm monolithic integrated circuits
三毫米单片集成电路噪声系数测量技术 - Thirdly, a new analytical expression for the noise figure of FRA is derived.
第四，给出了一种相比已有文献更为精确的FRA噪声系数的解析表达式。 - Design of Testing Radiometer in Radar Receiver Noise Figure Analysis Instrument
雷达接收机噪声系数分析仪中测试辐射计设计 - The operating principle of the method of Y factor measuring of noise figure is analyzed in this paper.
分析了噪声系数Y因子测量法的工作原理。 - And the Noise figure was considerably reduced because of the image rejection mixer.
另外，由于采用了镜像抑制混频器，从而使整机噪声系数大为降低。 - The experimental layout of high power optical fiber amplifier and low noise figure optical fiber preamplifier is given.
给出了高功率光纤放大器和低噪声前置光纤放大器的实验方案。 - Compared with EDFA in communication nets, EDFA in sensor array demands more on gain and noise figure.
与终端解调数字信号的通信系统相比，传感阵列终端需要解调的信号为模拟量，因此在增益和噪声方面对EDFA提出了更高的要求。 - The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized.
介绍了组成掺铒光纤放大器各组件的特性测量方法，重点介绍了测量掺铒光纤（EDF）参数的方法和实验装置； - Loss Correction Techniques for Noise Figure Measurement
噪声系数测量中的损耗修正技术 - Research on Noise Figure Measurement and Radio Frequency Amplifier
噪声系数测量和射频放大器的研究 - This paper discusses advantages of the feedback method and analyses how to optimize both noise figure and VSWR of microwave low-noise FET ampifiers. Design of the amplifiers is studied and calculations and experimental results are presented.
本文讨论了采用反馈法的优点，对应用反馈技术使微波低噪声FET放大器同时获得最佳噪声和最小驻波问题进行了研究分析，讨论了放大器的设计，给出了计算和实验结果。 - The Error Analysis in the Measurement of Noise Figure
噪声系数测试中的误差分析 - To achieve high sensitivity, the pre-amplifier with very low noise figure is adopted in the design, and reliable grounding and shielding processing are performed.
为了获得高的灵敏度，本设计采用了噪声系数很低的前置放大器，并进行了可靠的接地、屏蔽等处理。 - This paper discussed the error in the measurement of noise figure& The method of Y factor, The error is caused by mismatch of RF attenuater and IF attenuater and the others in the measurement system.
本文讨论了常用的噪声系数测试方法&Y因子法中高频及中频衰减器本身失配和测试系统中其它部分的影响所造成的测试误差。 - Theoretically deep analysis is made which is about the method of LNA design, analysis the affect of noise figure and input VSWR to the system sensitivity and the contradiction between the two parameter.
从理论上低噪放设计方法进行深入的研究，系统的分析低噪放的输入驻波比和噪声系数这两项指标对接收机系统灵敏度的影响以及两者之间的矛盾。 - In this paper, a direct method for noise figure measurements that meets these requirements is described.
介绍一种噪声系数的直接测量技术。 - The analysis indicates that the sensitivity is affected by noise figure, temperature and signal bandwidth;
分析结果表明，白噪声干扰条件下的系统灵敏度受噪声系数、温度、信号带宽的影响； - The sensitivity technologies are analyzed, and the methods of improving the receiver noise figure are studied.
分析了灵敏度接收技术相关参数，研究了优化接收机系统噪声系数的方法。 - High sensitivity and low power signals receiving can be realized by the low noise figure technology.
低噪声接收技术，是实现EW接收系统高灵敏度及小信号接收的关键技术。 - Study on noise figure and gain of EDFA
掺铒光纤放大器增益和噪声研究 - The optimization of the effective noise figure of the system is then discussed in detail.
然后详细地讨论了这个有效噪声系数的最佳化问题。 - Comparing with EDFA, PSA has some advantages, such as low noise figure and effect of dispersion compensation.
相对于EDFA而言，PSA具有低噪声指数和色散补偿等优点。 - The relationships among measurement sensitivity, measurement error, the link gain, noise figure, and the nonlinear distortion are studied, revealing the best indicators and performance can be achieved using intrinsic simulation photonic link.
研究了模拟光子链路中频率测量灵敏度同测量误差，链路增益，噪声指数，非线性失真等的关系，揭示了利用本征模拟光子链路所能达到的最佳指标和性能。