Carrier frequency estimation is a significant problem in wireless communication.
载波同步是无线通信系统中的关键环节。
The effect of the weighting window on frequency estimation accuracy is also discussed.
讨论了加窗对频率估计误差的影响。
A new frequency estimation technique for BPSK modulation signals embedded in strong noise is proposed.
在强噪声背景下，针对BPSK调制信号，提出了一种新的频率估计技术。
In the third chapter, a measure of frequency estimation based on signal sparse decomposition is introduced.
在第三章中，介绍了基于信号稀疏分解的频率估计方法。
This algorithm not only is computationally simple but also can provide superresolution frequency estimation.
该算法不仅计算简单，而且可获得较高的频率分辨率。
Investigates the problems of joint 2-d angular and frequency estimation based on uniform circular array (UCA).
研究均匀圆形阵列的联合二维角度-频率估计问题。
The new methods can be used in both detection of FMCW echo and frequency estimation of correlative pulse train.
这两种方法既可用于多段线性调频连续波探测回波的积累检测，也可用于多个相参脉冲信号的积累与频率估计。
The error of sketch-based algorithm is stable for frequency estimation, and it is better than count-based algorithms.
略图类算法对频率的估算误差比较稳定，计数型算法则偏大。
In recent years, many Doppler frequency estimation algorithms have been studied for the above wireless mobile applications.
近年来，为了更好地为这些无线应用服务，人们提出了很多算法来估计最大多普勒频移。
The underestimation of phase slope was overcome via local frequency estimation. The FEM could easily handle any irregular shape problem domain.
引入局部频率估计解决了相位展开的“坡度欠估计”问题，使用有限元方法利用了其可以适应任意不规则区域求解的特性。
Frequency estimation and spectrum analysis are the foundation of the analysis of complex communication signals in electronic reconnaissance system.
频率估计和频谱分析是在电子侦察系统中进一步分析复杂通信信号的基础。
A notch filter is proposed for single complex frequency estimation problem. It is represented as state-space equation model, which has good stability.
给出了一种用于单个复频率估计的陷波器传递函数，并将陷波器模型转换成状态空间模型，此模型具有很好的稳定性。
In wideband auto-correlation receiver, signal after self-mixing is sine signal. A synthetic algorithm is proposed for sine signal frequency estimation.
在宽带自相关接收机中，自混频后的信号为正弦信号，本文提出了一种综合算法估计正弦信号的频率。
Based on an auxiliary time-delay channel and ESPRIT approach, a new algorithm for wide band frequency estimation with sub-Nyquist sampling was proposed.
为了克服现有的欠采样频率估计方法存在的算法复杂、工程实现困难等问题，本文提出了一种基于虚拟仪器的三采样率切换的频率估计方法。
The results indicate that ESPRIT algorithm based on vector sensor can obtain higher resolution frequency estimation than that based on pressure hydrophone.
结果表明基于矢量传感器的算法比基于声压传感器的算法具有更高的频率估计精确度。
A frequency guiding digital receiver is given. The key technology, fast frequency estimation and high effectual data rate conversion, is introduced briefly.
给出了一种频率引导式的数字接收机方案，简要介绍这种接收机的关键技术——快速、高精度频率估计以及高效的数据率转换。
The iterative method of frequency estimation based on multi-channels, with high estimation precision, low SNR threshold, is easy to implement with hardware.
多通道迭代的测频算法，具有测频精度高，测频信噪比门限低，具有易于硬件实现的特点。
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。
The thesis plans improving frequency estimation accuracy, without changing the bandwidth of the transmitted signal. So, we can improve the range estimation accuracy.
因此，本文拟在不改变扫频带宽的前提下提高频率估计精度从而提高距离测量精度。
Finally, the fundamental frequency estimation under different PQ disturbances condition, such as harmonics, voltage fluctuations, etc, is analyzed by simulation respectively.
并运用大量仿真，对本方法在谐波、电压波动等干扰环境下基本频率估计的有效性进行验证。
To estimate carrier frequency of digitally modulated signal whose modulation type is unknown, a carrier frequency estimation method for digitally modulated signal is proposed.
针对未知调制类型情况下数字调制信号的载波频率估计问题，提出了一种适用于数字调制信号的载波频率估计方法。
In order to achieve high accurate measurement of object's velocity, a laser Doppler velocity radar system is established and the frequency estimation algorithm is investigated.
为了实现高准确的测量对象的速度，激光多普勒测速雷达系统建立和频率估计算法研究。
The algorithm of residual frequency estimation is detailed, and simulation results verify the proposal algorithm with good performances in both AWGN and multipath fading channel.
最后着重分析了残留频偏的估计算法，分别在AWGN信道下和多径衰落信道下仿真，结果表明所提算法均有良好的性能。
Frequency tracking means that sampling intervals of following sampling is updated according to new frequency estimation, so synchronous sampling error will be reduce step by step.
频率跟踪就是依据前一次频率估计修改下一次采样的采样间隔，从而使同步偏差越来越小。
A cost function is presented, and by applying Gaussian-Newton type recursive prediction error based method, a stable and efficient online frequency estimation algorithm is derived.
在此基础上，建立了最小方差损失函数，并结合高斯·牛顿预测误差方法，提出了稳定的，高性能的，在线的复频率直接估计算法。
Aiming at the disadvantages of analog frequency estimation in traditional receiver, this article proposes an algorithm of digital frequency discrimination based on distributed arithmetic.
针对传统接收机中模拟鉴频方法的缺点，提出了一种基于分布式算法的数字鉴频方法。
Research results show that vortex frequency estimation method based on HHT can estimate vortex signal frequency accurately, and increase the antiinterference ability of the vortex flow meter.
研究结果表明，基于HHT的涡街频率估计方法，可以精确估计涡街信号频率并提高涡街流量计的抗干扰能力。
The problems of haplotyping and haplotype frequency estimation on trio genotype data under the Mendelian law of inheritance and the assumption of Hardy-Weinberg equilibrium are studied in this paper.
研究了在门德尔遗传定理和哈代-维恩伯格平衡假设下，三元家庭基因型数据的单体分型和单体型频率估计问题。
The problems of haplotyping and haplotype frequency estimation on trio genotype data under the Mendelian law of inheritance and the assumption of Hardy-Weinberg equilibrium are studied in this paper.
研究了在门德尔遗传定理和哈代-维恩伯格平衡假设下，三元家庭基因型数据的单体分型和单体型频率估计问题。
应用推荐