This algorithm can achieve high frequency resolution and reduce the search range of MUSIC algorithm's spectral peak.
该算法可得到较高的频率分辨率,并减少了MUSIC算法的谱峰搜索范围。
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。
By using the technical scheme of the invention, the resonant frequency can be improved, and high frequency resolution can be realized.
使用本发明技术方案,能提高谐振频率,实现高的频率分辨率。
The direct digital frequency synthesis (DDS) is a kind of new frequency synthesis method. It has high frequency resolution, fast frequency switching speed, etc.
直接数字频率合成(DDS)是一种新的频率合成方法,具有频率分辨率高、切换速度快等优点。
Digital waveform generator which use DDS (Direct Digital Synthesize) technology has many merits like high frequency resolution, good stability and easy to generate signal.
基于DDS技术的数字波形发生器具有频率分辨率高、稳定性好、可灵活产生多种信号的优点。
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。
Designed for the lower Angle precision of the MMW terminal guidance radar in angular tracking, the new algorithm based on high frequency resolution profile is proposed in this paper.
针对毫米波末制导雷达角跟踪精度差的问题,提出基于频域高分辨像的单脉冲测角算法。
A novel adaptive line enhancer (ALE) with high frequency resolution was presented, which suitable for underwater acoustic communication with MFSK or frequency hopping (FH) modulation.
根据水声mfsk或跳频通信中频率估计特点,提出了一种基于自适应线谱增强器(ale)理论的实用高分辨频率估计新方法。
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。
It can get not only high time-frequency resolution, but also parametric description of all kinds of data structures.
它不仅可以获得较好的时频分辨率,而且可以参数化描述任何类型的数据。
This method has some advantages such as simple structure, high scan frequency, high resolution and good linearity.
该解调方法具有结构简单、扫描频率高、分辨率好、线性度好等优点。
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。
The result showed that the analyzer has wide input frequency range, narrow RBW (Resolution Bandwidth) and high scanning accuracy, and it reaches the international advanced level.
测试结果表明所设计的分析仪输入频带宽、频率分辨力和扫频准确度高,达到国际同类产品先进水平。
Frequency stepped radar is a high range resolution radar, and motion compensation is the key technique to realize high resolution of range.
频率步进雷达是一种距离高分辨率雷达,运动补偿是其实现距离高分辨的关键。
Due to high temporal and frequency resolution and high energy focus, the accuracy of fault signal feature extraction is greatly improved by WVD.
WVD很高的能量聚集性和很好的时频分辨率,极大地提高了故障信号特征提取的准确度。
If the space shift invariance is replaced by the time shift invariance, the high resolution frequency estimation can be obtained using a single vector sensor.
如果将空间的位移变成时间的延迟,单个矢量传感器可以实现高分辨率的频率估计。
DDS (direct digital synthesis) is a sort of frequency synthesis technique, which has advantages such as short frequency conversion time, high resolution in frequencies, programmability and so on.
直接数字频率合成(DDS)技术是目前广为应用的一项频率合成技术,它具有频率转换时间短、频率分辨率高、可编程等特点。
The main merits of DDS are high resolution and fast frequency switching speed, but the defects of low output frequency and bad spurious performance restrict the application of DDS.
DDS的主要优点是其高分辨率和高捷变速度,但是其较低的输出频率和较差的杂散性能制约了其应用。
The method can reduce influence of errors existing in statics for different frequency, especially reduce the loss of high-frequency components, so that has a good result in improving data resolution.
本方法能够降低不同频率校正量误差的影响,尤其减少了高频成分的损失,对提高资料分辨率有较好的效果。
Digital signal processing for analysing noise of motors has the advantages of high computing speed, fine frequency resolution and multiple functionality.
应用数字信号处理技术分析电机噪声具有分析速度快,频率分辨率高,功能丰富等特点。
Many experiments on low cut filter were carry out to meet the requirement that balance of high frequency energy and low frequency energy is necessity for high resolution seismic exploration.
根据高分辨率地震勘探对高低频能量均衡的要求,对低截滤波进行了多次试验。
However, When dealing with high frequency signal, it has the drawbacks of low frequency domain resolution.
特性及自动调节的时频窗,可以聚焦到信号的任意细节,但对高频信号的频域分辨率较低。
First, the basic expression of high-resolution one dimensional range profile of the stepped frequency (SF) is deduced to explain the high resolution of the wideband signals.
首先,给出了宽带雷达信号具有高分辨能力的直观解释,推导了频率步进雷达合成高分辨一维距离像的通用数学表达式。
Characterized by strong anti-interference capacity, high resolution ratio and portability of the instrument, the dual frequency gradient method has proved effective in practice.
双频梯度测量法有抗干扰能力强、分辨率高、仪器轻便等特点,实践证明应用效果很好。
Bilinear time-frequency transform possesses a high resolution both in the time domain and the frequency domain. It can be utilized to detect weak transient signal in complex background.
双线性时间-频率变换在时间域与频率域都具有较高的分辨率,有利于复杂背景条件下微弱瞬时信号的探测。
Modulated stepped frequency radar is a system to get high resolution range profile with the problem of redundancy.
调频步进雷达是一种距离高分辨率的雷达体制,但是会产生目标冗余的问题。
Besides, the target echo signal is often weak with strong noise, so data acquisition (DAQ) card should sustain high sampling frequency and resolution.
由于目标回波的低信杂比,需要采集卡具有较高的采样率和分辨率。
Besides, the target echo signal is often weak with strong noise, so data acquisition (DAQ) card should sustain high sampling frequency and resolution.
由于目标回波的低信杂比,需要采集卡具有较高的采样率和分辨率。
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