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- nonlinear phase noise 非线性相位噪声
- 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。
- Due to having innate defects of nonlinear phase distortion and parasitical AM,the properties of Armstrong PM are not good unless the modulation exponent is small enough. 阿姆斯特朗调相和双调幅矢量合成调相都是"高频电子线路"课程中的矢量合成调相电路。
- 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。
- 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。
- Based on fractional sampling method, a new super-exponential iteration decision feedback blind equalization algorithm for severely nonlinear phase distortion channels was proposed. 因此针对严重频率衰落和非线性相位失真信道,提出了一种分数采样的混合盲均衡算法,并获得了较快的收敛速度和较小的剩余均方误差。
- 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。
- Control pulse is coupled into this pulse shaper by wavelength division multiplexer. Nonlinear phase shift of signal laser is induced by control pulse because of cross phase modulation. 该全光脉冲整形器利用波分复用器将控制光脉冲引入光纤环形镜中,控制光脉冲由于交叉相位调制在信号光上产生了非线性附加相移。
- 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
- The measured phase noise of the CMU is -90.9 dBc/Hz at 10 kHz offset, and the root-mean-squared jitter is 10 ps. 时钟倍频单元输出的2.;5 GHz时钟相位噪声在10kHz频偏处为-90
- A 2D harmonic model based on the quaternion was constructed, and a special four-order cumulant was defined.The 2D cubic nonlinear phase coupling of additive color Gaussian noises was analyzed. 构造了合适的基于四元数的二维谐波模型,根据此模型定义了特殊的四阶累积量切片,分析了加性高斯在有色噪声中的二维三次非线性相位耦合。
- 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。
- Secondly, the phase noise and spurs of PLL are analyzed and the formulae for calculating them are given. 接着对PLL的相位噪声和杂散进行分析,得出估算相位噪声和杂散性能的公式。
- For this reason,the paper is mainly focus on the theory and technology of low phase noise PLL design. 本文就基于此对锁相环低相位噪声理论和设计进行研究和分析。
- A design method of VCO with low phase noise time based center circuit is proposed. 提出了一种低相位噪声时基核心电路的压控振荡器的设计方法。
- However, the SSB mixing has many inherent drawbacks such as high phase noise, high power, and spurious tones. 然而,单侧频带混波有著许多先天上的缺点像是高相位杂讯,功率消耗大,以及寄生讯号。
- The effect on modulation and demodulation of QPSK via carrier phase noise can not be ignored, and it is difficult to analyze. 载波相位噪声对QPSK调制解调的影响是不可忽略的,也是难以分析的。