天线增益与噪声温度比值,ratio of antenna gain to noise temperature
1)ratio of antenna gain to noise temperature天线增益与噪声温度比值
2)ratio of gain to noise temperature增益与噪声温度比值
1.The principle and method are proposed to compute and measure theratio of gain to noise temperature of this active array antenna system.有源阵列天线系统的噪声是有源相控阵雷达系统噪声的主要成分,通过建立基于有源阵列天线系统的噪声分析模型,给出该系统噪声温度的具体计算方法,得到该系统噪声温度的计算公式,进一步推导出该系统增益与噪声温度比值的计算和测试方法。
3)Gain to noise temperature ratio增益噪声温度比
英文短句/例句
1.ratio of gain to noise temperature of an antenna天线增益噪声温度比
PARISON OF CRITICAL PITTING TEMPERATURES FOR OIL INDUSTRY STEELS USING ELECTROCHEMICAL NOISE电化学噪声方法比较石油用钢的临界点蚀温度
3.Noise equivalent temperature difference (NETD)噪声当量温度差(NETD)
4.Experimental Studies, Analysis and Design for Erbium Doped Fiber Amplifiers with Low Noise Figure, High and Flat Gain;低噪声、高增益、高平坦度掺铒光纤放大器的分析与实验研究
5.The noise temperature is in the most favourable case given by the temperature of the receiver.理想的噪声温度即是接收机的温度。
6.Algorithm of Noise Reduction and Contrast Enhancement for Intravascular Ultrasound Images血管内超声图像的血液噪声抑制和对比度增强算法
7.noise-gated AGC噪声门限式自动增益控制
8.Design of a High Gain and Low Noise CMOS Mixer一种高增益低噪声CMOS混频器设计
parison and Analysis on Combustion Noise of Diesel Engine with and without Turbocharger增压前后柴油机燃烧噪声的对比分析
parison of Speech Enhancement in Different Noise Environments变噪声环境下语音增强算法性能比较
11.Influence of Oil Temperature to Noise of Engine内燃机润滑油温度对噪声影响的研究
12.Calculation of Noise Temperature Due to Reflector Antenna Ohmic Loss反射面天线欧姆损耗噪声温度的计算
13.Optimal Placements and Feedback Gains of Sensors and Actuators for Active Noise Control;噪声主动控制中作动器位置与反馈增益优化
14.Design and Study on an Amplifier with low Frequency,Low Noise and High Gain;低频低噪声高增益放大器的设计与研究
15.A Low Noise,High Gain Direct Down-conversion Mixer一种低噪声、高增益的直接下变频混频器
16.High and Low Gain Dual-Channel RF Low Noise Amplifier Design高低增益双通路射频低噪声放大器的设计
17.Design of C-Band High Gain Low Noise AmplifierC波段高增益低噪声放大器单片电路设计
18.A Low Voltage,Low Noise and High Gain CMOS Folded Mixer一种低电压、低噪声、高增益CMOS折叠式混频器
相关短句/例句
ratio of gain to noise temperature增益与噪声温度比值
1.The principle and method are proposed to compute and measure theratio of gain to noise temperature of this active array antenna system.有源阵列天线系统的噪声是有源相控阵雷达系统噪声的主要成分,通过建立基于有源阵列天线系统的噪声分析模型,给出该系统噪声温度的具体计算方法,得到该系统噪声温度的计算公式,进一步推导出该系统增益与噪声温度比值的计算和测试方法。
3)Gain to noise temperature ratio增益噪声温度比
4)noise temperature ratio噪声温度比
5)effective antenna noise temperature等效天线噪声温度
1.The paper discusses the measuremet ofeffective antenna noise temperature,a characteristic parameter of radio noise power.在讨论了表征无线电噪声功率参数———等效天线噪声温度的测量方法后 ,根据环境无线电噪声强弱的不同 ,采用了两种方法进行测量 ,即对较强信号的真有效值测量和对微弱信号的迪克测
6)antenna effective noise temperature天线有效噪声温度
延伸阅读
噪声温度表示噪声源(热源、噪声管、射电源、接收机系统或其他有源多端网络)所发出的噪声功率的量度。它等于一个电阻在与这个噪声源相同的带宽内,给出相同的功率时,所具有的绝对温度。按照尼奎斯特定理,噪声源的噪声温度与噪声功率P之间的关系为:T=P/kΔv,式中k为玻耳兹曼常数,Δv为频带宽度。对于接收机,可将内部噪声换算成相当于输入端引入的相应的噪声量,称为等效噪声温度 TN。它与接收机的噪声系数F的关系为: TN=TO(F-1)。TO为环境温度;TN和F都是常用的表达接收机噪声的方式。射电望远镜的系统噪声温度TS的含义是,来自天线的噪声功率经过传输线损耗后,呈现在接收机输入处的噪声温度、传输线本身的噪声温度以及接收机等效输入噪声温度之和。