In addition to high power, the amplifiers also provide improved performance due to very low phase noise and spurious.
除了大功率,由于低相噪和低杂散,该放大器也提供改进的性能。
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.
由于有锁频环的频率牵引,锁相环路滤波器可以设计得很窄,具有很好的抑噪性能,满足精确跟踪载波相位的要求。
Low SSB phase noise and high spurious rejection for all in-channel and blocking measurements.
低单边带相位噪声和杂散抑制高所有的通道和阻止测量。
A broadband, high resolution and low phase noise frequency synthesizer used in electronic detection and electronic countermeasure system is described in detail.
详细介绍了一种用于电子侦察与对抗系统中的宽带、高分辨率、低相位噪声频率合成器。
The paper was based on the goal of low phase noise, high resolution to study and analyze the wideband frequency source.
本文正是基于低相位噪声、高分辨率为目的,对宽带频率源作了研究和分析。
Direct Digital Synthesizer (DDS) has the advantages of high frequency resolution, rapid frequency change rate and low phase noise.
直接数字频率合成器dds具有极高的分辨率、频率转换速度快、相位噪声低等优点。
This paper mainly deals with VCO with wide tuning, high linearity range and low phase noise.
本文对宽调谐高线性低相位噪声的VCO进行了设计研究。
In this paper, a new variance used in the phase noise measurement, called deformed high difference variance, is presented.
本文提出一种用于相位噪声测量的新型方差——变形高阶差分方差,其传递函数具有无旁瓣、谐波少等优点。
Millimeter Wave (MMW) mixer is one of the most key equipment of many MMW systems, however it is difficult and high costed to research on MMW local oscillator with low phase noise.
毫米波混频器是许多毫米波系统的关键部件之一,而研制低相噪毫米波本振源比较困难且成本较高,毫米波谐波混频器正是解决这一难题的有效途径。
The results show that digital modulation is with high resolution, total digitalization programmable, and low phase noise etc.
结果表明,数字调制具有分辨率高、全数字化可编程、相位噪声低等特点。
It has great advantages of frequency stability, high frequency resolution, speed of frequency switching, simple analysis of phase noise and spurious, small size and low power.
其具有频率稳定度好、频率分辨率高、频率切换速度快、相位噪声和杂散干扰分析相对简单、体积小、功耗低等优势。
The tunability of VCO is normally provided by a variable capacitor. Achieving low phase noise requires a high-Q on-chip variable capacitor.
VCO的调谐能力通常由可变电容来实现,要获得低相位噪声,需要高Q值的片上可变电容。
Design a synthesizer based on DDS, whose characteristics are fast frequency change speed, high resolution and low phase noise et al.
并以DDS为核心设计了接收机的细扫本振,该本振具有变频速度快、分辨率高、相噪指标高等特点。
The results of field test showed that adopting cascade geophone pattern can be results of good continuation of phase, enhanced amplitude and high signal-to-noise ratio on the records.
实际野外试验结果表明,采用串联检波器串的方式所得记录的相位连续性好、振幅增强,信噪比较高。
It's the preferred technique for applications requiring high hopping rate and excellent phase noise performance.
对于要求高速跳频、输出相位控制和优良相位噪声性能的应用是首选的技术。
The generated signals have advantages of high frequency resolutions, fast frequency switching speed, low phase noise, the ability to switch frequencies while maintaining constant phase.
具有频率分辨率高、频率切换速度快、频率切换时相位连续、输出相位噪声低等优点。
Using the high degree diffracted waves twice, we have obtained lower noise phase difference amplification of over 100 times.
两次利用其高阶衍射可获得大于100倍的低噪声位相差放大。
Experiments showed that it has many advantages, such as small phase displacement, high noise suppression capability, rapid response speed and high accuracy.
实验表明,该传感器相位移动小,干扰噪声抑制能力强,响应速度较快;
A single carrier modulation scheme suitable for use in high frequency communication systems is provided that achieves improved residual frequency error and phase noise estimation.
提供了一种实现改进残留频率误差和相位噪声估算的、适合于在高频通信系统中使用的单载波调制方案。
Noise, High Frequency, Order Linear Phase Lowpass Filter.
噪声,高频率,阶线性相位低通滤波器。
Noise, High frequency, 8th Order Linear Phase Lowpass Filter.
噪声,高频率,8阶线性相位低通滤波器。
DDS has both the advantages of high frequency resolution, rapid frequency change rate and low phase noise and the disadvantage of bad spur suppression performance with Max value of -65 dB.
DDS的优点是具有极高的分辨率、频率转换速率快、相位噪声低等;缺点是杂散度抑制比性能差,很难做到- 65d B。
Unique to the 5372A (compared with the 5371A) are deeper memory, hardware histograms, and FFT capabilities for high-performance and more sophisticated jitter spectrum analysis and phase noise studies.
独特的向5372a (相比,与5371a )是更深的记忆体,硬体直方图,和FFT能力高的性能和更复杂的抖动频谱分析和相位噪声的研究。
Unique to the 5372A (compared with the 5371A) are deeper memory, hardware histograms, and FFT capabilities for high-performance and more sophisticated jitter spectrum analysis and phase noise studies.
独特的向5372a (相比,与5371a )是更深的记忆体,硬体直方图,和FFT能力高的性能和更复杂的抖动频谱分析和相位噪声的研究。
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