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分辨估计
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  resolution estimation
     Superior Performance of Complex-Number Bayesian Algorithm for DOA High Resolution Estimation
     DOA高分辨估计的两种贝叶斯算法的性能比较
短句来源
     The research on high resolution estimation of bearing of multiple reflectors
     高分辨估计多目标方位的研究
短句来源
     High Resolution Estimation on Blood Flow Movementwith Eigendecom posing Echo Array Method
     基于回波阵列特征结构分解的血流运动信息高分辨估计方法
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  “分辨估计”译为未确定词的双语例句
     Super-resolution estimation of the ocean surface current for the HF ground wave radar
     高频地波雷达海洋表面流方位的超分辨估计
短句来源
     Experimental Study on WSF Algorithm for High-resolution Direction-of-Arrival Estimation
     利用WSF法实现多目标方位高分辨估计的实验研究
     Azimuth Super-resolution Evaluation Based on Sub-space Root-MUSIC Method
     基于子空间的Root-MUSIC方位超分辨估计
短句来源
     A Method of Underwater channel Multipath Parameters Estimation with High Resolution
     水声信道多径参数的一种高分辨估计方法
     Experimental Study on High-Resolution Direction-of-Arrival Estimation
     多目标方位高分辨估计方法的实验研究
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     b) a G-M estimator of ω'1α, ω'2β and ω'1α+ω'2β under L (Xβ, Aα; δ21V, δ22U} respectively.
     b)G-M估计
短句来源
     High resolution methods for time delay estimation
     时延估计的高分辨方法
短句来源
     The research on high resolution estimation of bearing of multiple reflectors
     高分辨估计多目标方位的研究
短句来源
     A newmethod for the estimation of exponent regularity of the kind wavelet and related scalefunction is proposed.
     Daubechies的估计
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  resolution estimation
A high resolution estimation algorithm to extract the model parameters is also developed by building the relation of the scattering model and Prony model.
      
High-resolution estimation of the heart rate variability signal
      
Furthermore, the array geometry should allow the application of a high resolution algorithm to provide high resolution estimation.
      
This paper presents a novel 3-D antenna array structure for the estimation of AoAs using a high-resolution estimation algorithm.
      


The problem of high resolution echoes time delay estimation for large time-bandwidth preduct LHM signals is investigated. A novel algorithm based on FFT for LFM signals enhancement used for preprocessing to raise the effective signal-to-noise ratio (SNR) is presented. In Order to overcome the redution difficulty in the case that echoes are highly correlated or coherent, ROOT-WSF algorithm is applied by use of inverse filtering in signal bandwidth. Finally, simulation results are included to demonstrate the improved...

The problem of high resolution echoes time delay estimation for large time-bandwidth preduct LHM signals is investigated. A novel algorithm based on FFT for LFM signals enhancement used for preprocessing to raise the effective signal-to-noise ratio (SNR) is presented. In Order to overcome the redution difficulty in the case that echoes are highly correlated or coherent, ROOT-WSF algorithm is applied by use of inverse filtering in signal bandwidth. Finally, simulation results are included to demonstrate the improved perfornmnce achieved by the proposed method.

本文以雷达距离域超分辨应用为例,研究了基于高分辨阵列处理算法的线性调频信号重叠回波时延高分辨估计技术首先,针对线性调频信号提出了一种信号增强算法用于回波信号的预处理,以有效地降低超分辨处理适用的信噪比门限.为了解决不同目标速度接近时造成的目标回波强相关甚至相干给回波分辨带来的困难,讨论了基于叛域逆滤波获得等效复谐波序列,并运用ROOR-WSF算法进行超分辨处理的实现问题计算机模拟表明,本文方法可在低信噪比下实现多目标距离超分辨估计,克服了现有方法在信噪比门限、回波相干性及计算量等方面的限制.

Estimating the arrival time of overlapping echoes by high resolution array processing algorithms can efficiently expand the ability of target resolution in radar. Lowering the SNR threshold at which the algorithms take effect has particularly been an area of focus for practical applications. In this paper a novel method based on pulse compression for range super-resolution is presented. The proposed method, especially suitable to large time-bandwidth product (TB) signals, can be applied at very low SNR and greatly...

Estimating the arrival time of overlapping echoes by high resolution array processing algorithms can efficiently expand the ability of target resolution in radar. Lowering the SNR threshold at which the algorithms take effect has particularly been an area of focus for practical applications. In this paper a novel method based on pulse compression for range super-resolution is presented. The proposed method, especially suitable to large time-bandwidth product (TB) signals, can be applied at very low SNR and greatly reduce the computational load in comparison with the known approaches.

利用高分辨阵列处理算法实现重叠回波时延超分辨是扩展雷达距离分辨率的有效方法,而降低这类算法适用的信噪比(SNR)门限是其能否实用的关键。本文针对大时宽带宽积(TB)信号压缩后能量集中,峰值SNR提高的特点,提出了一种低SNR下大TB信号距离超分辨新方法.即利用脉压和旁瓣抑制技术对大TB信号进行预处理,结合噪声的预白化,对截取的脉压输出主瓣进行超分辨处理。计算机模拟表明该方法可以在低SNR下实现多目标的距离超分辨估计,并大大降低数据存储量和计算量.

For linear and non-linear frequency modulation (LFM/NLFM) signals with large time-bandwidth product (TB), radar super-resolution in range domain at low SNR is investigated. A novel signal enhancement algorithm based on FFT for LFM/NLFM signals used for preprocessing, which significantly raises the effective signal-to-noise ratio (SNR), is presented. By use of decorrelation between echoes of different targets achieved by pulse-to-pulse carrier frequency hopping, a variety of approaches are suggested to further...

For linear and non-linear frequency modulation (LFM/NLFM) signals with large time-bandwidth product (TB), radar super-resolution in range domain at low SNR is investigated. A novel signal enhancement algorithm based on FFT for LFM/NLFM signals used for preprocessing, which significantly raises the effective signal-to-noise ratio (SNR), is presented. By use of decorrelation between echoes of different targets achieved by pulse-to-pulse carrier frequency hopping, a variety of approaches are suggested to further lower the SNR threshold for range super- resolution. Monte-Carlo simulation results are presented to illustrate the improved performance.

针对大时带积(TB)线性/非线性调频(LFM/NLFM)脉压信号,本文研究了低信噪比(SNR)下获得雷达距离维超分辨性能的技术和方法。首先提出了一种有效的信号增强算法,并通过脉间跳频的设计获得了不同目标回波非相关性,进而提出了一系列进一步降低超分辨处理的SNR门限的有效方法。计算机模拟表明:同样条件下本文方法较直接频域处理使超分辨估计所需的SNR门限改善了10dB以上,较好地解决了低SNR环境下雷达距离域的多目标超分辨问题。

 
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