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- From this point, the paper give some researches on the direction of arrival(DOA) and frequency estimate of the bistatic an. 双/多基地雷达的检测、定位、成像是信号处理的重要内容,其中参数估计,如波达方向、时延和频率的估计等,问题涉及双/多基地雷达的空间、时间和频率同步。
- differential feed-forward frequency estimate (DFFE) 差分前向频率估计（DFFE）
- The Cram?r Rao Bound (CRB) for the frequency estimation from Laser Doppler Anemometer (LDA) measurements is derived. 本文推导了激光多普勒测速 (LDA)频率估计的Cram r Rao下限。
- Frequency estimation is one of the key techniques in a DFH communication system. 跳变频率检测是实现DFH的关键技术之一。
- The sinusoid frequency estimation algorithms for all phase spectrum analysis are studied. 摘要研究了应用于全相位频谱分析的正弦波频率估计算法。
- The frequency estimated by Beta distribution can be used to judge the process capability of coring and to control the process by quality control chart. 据贝塔分布估计的频率,还可对钻探取心的工序能力作出判断,并应用控制图进行工序控制。
- By using a Bayesian maximum likelihood(BML) technique, a high-resolution algorithm is discussed for direction-of-arrival(DOA) and frequency estimation. 根据贝叶斯最大后验估计原理，研究了波达方向及频率估计的超分辨方法，提出了多目标波达方向及频率估计的快速算法；
- A power spectrum compensating algorithm is presented for frequency estimation of single sinusoids in colored noise at low SNR. 摘要针对色噪声条件下的低信噪比单音信号频率估计问题，提出了一种色噪声功率谱补偿算法。
- This algorithm not only is computationally simple and can provide supperresolution frequency estimation, but also is robust to mismodeling errors. 该算法不仅计算简单并可获得较高的频率分辩率,而且对信号模型具有较强的鲁棒性。
- This paper focuses on the research of the frequency estimation of DFH signal in (colored) Gaussian noise by using ARMA-based method with fourth-order cumulants. 本文利用四阶累积量研究了(色)高斯噪声下基于ARMA建模法的DFH信号频率检测,并针对由于模型阶数估计过高而产生的虚检频率,提出一种充分利用信号先验信息的改进算法。
- A Frequency Estimate Method Based on Complex-Correlation 一种基于复相关技术的频率估计方法
- This paper mainly studies the signal enhancing and frequency estimating methods based on adaptive line enhance technique and the time interval calculation based on discrete Fourier transform and sliding Goertzel algorithm for Coriolis mass flowmeters. 本文主要研究了基于自适应谱线增强技术的科氏流量计信号增强和频率估计方法和基于离散傅里叶变换和滑动Goertzel算法的科氏流量计信号时间差计算方法。
- Frequency estimation of drill-core recovery by using normal distribution may show a relatively great deviation, but the effect of frequency estimation by using Beta distribution will be better. 应用正态分布对取心率进行频率估计可能会有较大偏差,而应用贝塔分布的频率估计,效果较好。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- In this paper,accuracy of pitch estimation based on two slightly different CQT definitions are discussed. The formulas for calculating frequency estimation error and the minimum length of the window function for a given frequency resolution are presented. 对于两种CQT定义下的频率估计准确性问题进行了讨论,给出了频率估计误差的计算公式和给定音节频率分辨率下CQT窗函数长度应满足的关系;
- To guarantee the unambiguity of velocity estimation, CZT (Chirp-Z transform) is adopted to sample densely in the band in which the target may exist to improve the accuracy of frequency estimation. 给出了速度-加速度联合估计的具体实现步骤以及CZT处理中参数的确定。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- In this approach,a phase deduction frequency estimator(PDFE) was employed to perform initial carrier-frequency coarse estimation and accomplish frequency acquisition in short time. 该方法采用相位推算法进行快速载波频率初估计,完成频率的捕获。
- A NEW STUDY FOR THE DOPPLER CENTROID FREQUENCY ESTIMATE FROM THE SAR ECHOES 星载SAR的多普勒中心频率估计的新探索
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
