• This paper describes some methods, steps and attentions using a spectrum analyzer in phase noise measurement.

    本文叙述频谱分析仪测量相位噪声方法步骤注意的问题。

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  • The comparison method in phase noise measurement system is introduced by means of the advanced way in interlaboratory comparison and proficiency testing.

    通过采用国际上先进实验室比对能力验证方法,提出了相位噪声测试系统比对方案。

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  • In addition to high power, the amplifiers also provide improved performance due to very low phase noise and spurious.

    除了大功率由于低杂散放大器提供改进性能

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  • Due to the frequency pulling of FLL, the passband of the filter in PLL can be made very narrow to suppress the noise, and the PLL can lock carrier's phase with high accuracy.

    由于频率牵引,锁相环路滤波器可以设计,具有很好的噪性能,满足精确跟踪载波相位的要求。

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  • In this thesis, we brought out an effective method capable of raising maximum oscillation frequency with good phase noise.

    本论文中我们提出一个有效方式振荡频率提高且有不错讯表现。

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  • The method can realize time variant merging automatically, result in simultaneous corrections both for phase and amplitude and avoid the influence of noise.

    方法自动实现时变拼接,达到相位振幅同时校正而且能避免噪声影响

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  • Low noise fixture and phase average technique provide the amplitude and spurious resonance in frequency domain.

    频率域内噪声定位装置相位平均技术可以提供振幅假频谐振

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  • The LO phase noise, LO-RF port isolation of the mixer in the front-end and their effect on the detectability of the radiometer were analyzed in this paper.

    分析了前端部件本振源相位噪声混频器本振射频端口隔离系统探测性能影响,指出在距离较近时影响明显。

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  • In this paper, influence of SAW linear FM signal phase noise on radar transmitter is analyzed.

    本文研究了SA W线性调频信号相位噪声雷达发射机性能的影响

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  • The paper presents design proposal. working principle and functions of the signal processing system in the phase noise calibrating system 'for the pulse power amplification chain.

    详细介绍脉冲功率放大相位噪声检定系统中的信号处理系统设计方案、工作原理功能

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  • In modern radar and communication system, phase noise of local oscillator (lo) becomes a vital factor of system performance.

    现代雷达通讯系统中,本相位噪声越来越成为决定系统性能关键因素

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  • Therefore a new method of Kalman Filters used in phase unwrapping and noise restraining is proposed.

    并提出卡尔曼滤波相位解缠噪声抑制中的算法

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  • The analyses of frequency characteristic of the system demonstrate that the noise in effective frequency band is eliminated and the phase of the system is approximately linear.

    系统频率特性进行了分析,表明基于技术的微加速度计系统工作频段噪声能够得到有效消除具有近似的线性相位

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  • Regenerative dividers play an important role in frequency synthesizer with its low phase noise.

    生分频器优越的相位噪声性能,频率合成中有着重要作用

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  • Noise filtering for interferometric phase image, is one of key problems in InSAR imaging.

    干涉相位降噪滤波干涉合成孔径雷达成像必须步骤之一

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  • Many factors, such as noise, speckles and low modulation in wrapped phase make the unwrapping procedure complicated and path-dependent.

    实际干涉计量中各种干扰因素的存在,使得包裹相位可能存在噪声调制点或散误差点。

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  • The shot noise and thermal noise with homodyne demodulation technique is given in this article. And phase noise induced with different time delay is also analyzed.

    给出了采用零差解调技术时干涉系统散粒噪声噪声,并且分析了不同时间延迟情况下的相位噪声。

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  • The paper analyzes the interference rejection of Quadrature amplitude modulation signals in the presence of carrier phase jitter, sinusoidal interference and white Gaussian noise.

    文章分析存在载波相位起伏正弦干扰高斯噪声时正交调幅数字系统性。

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  • Computer simulation and experimental results make it clear that this method can effectively remove noise in phase map, unwrap the wrapped phase, and reconstruct the surface of the detected object.

    计算机模拟实验结果证明方法有效地去除相位中的噪声,实现带噪声主值相位图相位展开,可靠地重建被测物体的表面形貌。

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  • In this paper the phase noise is introduced from phase control at first, then the phase noise is analyzed and given a new solution to the vector of it.

    相位控制出发导出相位噪声并就相位噪声进行了分析,给出了相位噪声矢量一种新的求法

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  • On the research of traditional phase noise measurement methods, a new phase processing and phase noise measurement method based on Equivalent phase Comparison Frequency is proposed in this paper.

    论文传统相位噪声测量方法研究基础上,提出了基于等效鉴相频率的相位处理相位噪声的测量。

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  • A fast agile frequency synthesis source of low spurious and low phase noise is presented in the article.

    文中介绍散、低快速变频频实现途径。

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  • Phase noise in semiconductor laser due to external optical feedback is investigated theoretically.

    本文在理论上研究了由于外部反馈引起的半导体激光器相位噪声

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  • A noise reduction method in nonlinear time series based on phase reconstruction and manifold learning was proposed.

    提出了一种基于重构主流形识别的非线性时间序列降噪方法

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  • For the problem of the parameter estimation of multi-component chirp signal in the additive colored noise, a method based on phase difference and time-frequency signal filter was proposed.

    针对加性噪声背景下分量线性调频信号参量估计问题,提出基于相位差分的时子空间方法

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  • A new method is presented for analyzing the acquisition behavior of second-order PLL with sinusoidal phase detector in the absence of noise.

    本文给出了一种计算噪声时具有正弦鉴相器相环捕捉特性方法,求得了每个差频周期的平均角频率牵引量。

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  • The phase noise is in close relationship with the performance of system, for this reason, the low phase noise source is widely used in system to optimize its performance.

    相位噪声指标系统灵敏度密切相关,灵敏度许多高性能系统的关键指标之一,所以高性能系统广泛采用

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  • The SSB phase noise and timing jitter are further analyzed in this experiment.

    实验,相位时序抖动进一步做分析

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  • The SSB phase noise and timing jitter are further analyzed in this experiment.

    实验,相位时序抖动进一步做分析

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