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- This method determines the most effective channels and frequencies to test so the number of phase noise measurements is reduced. 此测试方法能决定出最有效的频道及频率进行测试,以减少相位杂讯的测试次数。
- Phase Noise Measurement and Error Analysis of Out-door Unit of Satellite Television Earth Station 卫星电视地球站室外单元相位噪声的测量及误差分析
- The Phase Noise Measurement Technique of Microwave and Millimeter-wave Signal--The Extract of Phase Noise and the Error-correction 微波、毫米波相位噪声测试技术--相位噪声的提取及误差校正
- phase noise measurement 相位噪声测量
- phase noise measurement system 相位噪声测试系统
- The measurement of the test chip shows that the VCO in the CRC has a wide tuning range and a low phase noise. 并已完成对10GHz压控振荡器的在芯片测试,结果表明该电路具有较低相位噪声和较大调频范围的特点。
- The phase noise of PLL is?88.83 dBc/Hz at 10kHz offset. 37GHz的单片锁相环电路的锁定范围为32MHz;锁定时在偏离中心频率10kHz处的相位噪声为-88.;83dBc/Hz。
- Design and phase noise analysis of a MEMS varactor is presented. 给出了一种MEMS压控电容的设计和相位噪声分析结果。
- The measurement results show that the center frequency of the VCO is 36GHz and the tuning-range is 800MHz. The phase noise is -98.83dBc/Hz at a 10MHz offset. 测试表明:该压控振荡器中心频率为36GHz;调谐范围约为800MHz;在偏离中心频率10MHz处的单边带相位噪声为-98·83dBc/Hz.
- phase noise measuring system 相位噪声测试系统
- The modified readout noise measurement is based on the standard deviation of a selected square in the overscan image. 在此基础上,提出了改进的噪声和CTE的测试和归算方法。也就是,读出噪声的测量以过扫描区的方差为基础来进行。
- Phase noise characteristics of both oscillators are analyzed in detail. Measurement results are given and compared with each other. The DRO shows an ultra low-phase noise performance:?110 dBc/Hz at 10kHz offset and?120 dBc/Hz at 100kHz offset. DRO相位噪声性能优越;在偏离载波10kHz处达到?110dBc/Hz;偏离载波100kHz处优于?120dBc/Hz;输出功率达到7.;8dBm;满足卫星通信的应用要求。
- The ambient noise measurement for substations in the city plays an important role in controlling and preventing ambient noise pollution. 城市中变电站环境噪声测量对控制和防治环境噪声污染起着重要作用。
- The Time Domain Wave Form and Frequency Spectrum of Modulated Signal of uexp( tt/ Pw) Multiply by Carrier with Uniform Phase Noise. 单边递减波电压讯号乘上含有均匀相位杂讯载波之调变讯号时域波形及频谱。
- A fully integrated low phase noise LC voltage controlled oscillator(VCO) is presented. 介绍了一种全集成的LC压控振荡器(VCO)的设计。
- A 8mm waveband FM and AM noise measuring equipment is introduced in this paper. 介绍了8mm 调频调幅噪声测试设备的原理和设计;给出了完整的测试数据和误差分析.
- The properties of phase noise of Gunn oscillators are determined by the characters ofthe noise of Gunn diodes. 体效应振荡器相位噪声主要取决于体效应管的噪声。
- LC oscillators have better phase noise, but the lowest noise is obtained with the use of a quartz crystal oscillator. LC谐振器利用石英晶体振荡器产生基准源,因此抖动较小。
- DRO(dielectric resonator oscillator) has the characteristics of high frequency stability and low phase noise. 介质振荡器具有频率稳定性好,相位噪声低的特性。
- The measured phase noise is-117dBc/Hz at 4MHz off the center frequency of 4.189GHz. 其在4.;189GHz频点上4MHz频偏处所测得的相位噪声为-117dBc/Hz