分析了截获信号参数的盲估计问题。
We analyze the blind parameter estimation of intercepted signal.
还对信道盲估计性能进行了分析。
Besides, its blind channel estimation performance is also analyzed in this paper.
提出一种基于矩阵变换法的简便盲估计算法。
A simple blind estimate algorithm is proposed based on matrix transform.
提出了一种基于信道盲估计的多用户检测方法。
A multiuser detector based on blind channel estimation is proposed.
提出一种基于循环相关符号率盲估计的快速实现方法。
A fast realization method of the cyclic correlation based symbol rate blind estimation is proposed.
提出了一种在多径瑞利衰落信道中的信噪比盲估计算法。
This paper presents a blind algorithm to estimate the signal-to-noise ratio(SNR) of a communication signal in multipath Rayleigh fading channel .
将联合最大似然分组半盲估计算法应用于正交频分复用系统。
Joint ML block semi-blind channel estimation is applied to OFDM system.
盲估计不需要导频符号，直接利用接收的信号对信道进行估计。
Blind estimation dose not need the pilots and USES the received signal to estimate the channel state information.
信道估计的方法从大的角度可以分为非盲估计、盲估计和半盲估计。
Channel estimation methods can be grouped into non-blind estimation, blind estimation and semi-blind estimation.
该文提出一种用于多输入多输出CD MA系统的信道快速盲估计方法。
In this paper, a low-complexity blind channel estimation technique is proposed for long-code MIMO CDMA systems.
以均匀直线阵和四阶累积量为基础，提出了一种新的空间特征盲估计算法。
Based on uniform linear array and fourth order cumulant, a novel blind algorithm for spatial signature estimation was presented.
仿真结果表明了上述标签延迟发射分集方法的有效性及其信道盲估计方法的性能。
Simulation results demonstrate the validity of the novel labeled-delay transmit diversity scheme and the performance of the blind estimation of frequency-selective channels.
以常见的斑点噪声为研究对象提出一种简单、快速的图像斑点噪声参数盲估计方法。
Focusing on a kind of familiar noise, i. e. speckle noise, this paper presents a simple and efficient method on blind parameter estimation of speckle noise in an image.
改进算法利用接收信号向量中的循环前缀与一个特定子向量作互相关来对信道作盲估计。
The improved algorithm uses cross-correlation between cyclic prefix and a special sub-vector from vector of received signal to implement channel blind estimation.
根据算法的特点，信道估计可大致分为三类：基于导频辅助的估计、盲估计、半盲估计。
According to the characteristics of various algorithms, we can classify them into three types: pilot-assisted channel estimation, blind and semi-blind estimation.
提出一种适应于在加性高斯白噪声信道(AWGN)下遥测系统的多普勒频偏盲估计算法。
The blind estimation algorithm of Doppler frequency suitable for telemetry systems involving additional white Gaussian noise (AWGN) channels is proposed in this paper.
同时该方法还可以推广到基站采用智能天线的系统中，实现对矢量信道冲激响应的盲估计。
The new method can also be expanded to the base station with antenna array and can realize the estimation of vector channel impulse response.
针对频域信道盲估计的相位模糊问题，提出了基于非对称调制星座的频域信道盲估计方法。
Aiming at the phase ambiguity of the blind channel estimation in frequency domain, a blind channel estimation method in frequency domain based on dissymmetrical modulation constellation was proposed.
但盲估计算法，如子空间分解法等，需要较大的样本值，收敛速率慢，不利于实时信道估计。
But the blind estimation algorithm, for example, the sub-space decomposition, is not good for real time estimation because it requires large received signals, and has low estimation convergence rate.
为了解决正确检测和识别直扩信号的问题，提出一种基于循环谱理论和矩阵变换法的盲估计算法。
In order to solve the problem of direct sequence spread spectrum signals check and recognition, a blind estimate algorithm is proposed, it based on cyclic spectrum theory and matrix transform.
本文针对传统的OFDM系统中利用接收信号的自相关进行信道盲估计算法提出了一种改进算法。
An improved algorithm is proposed based on the conventional channel blind estimation algorithm which USES the auto - correlation matrix of the vector of received signal in the OFDM systems.
为了解决正确检测和识别直扩信号的问题，提出一种基于循环谱理论和矩阵变换法的盲估计算法。
In order to solve the problem of direct sequence spread spectrum signal's check and recognition, a blind estimate algorithm is proposed, it based on cyclic spectrum theory and matrix transform.
利用具有循环前缀和循环后缀的OFDM帧结构，该文提出了一种新的符号定时跟踪盲估计算法。
A new blind symbol timing-tracking algorithm is proposed, using the special OFDM frame structure with cyclic prefix and cyclic postfix.
本文阐述了未知符号序列经线性调制后，在接收端利用循环相关理论对符号速率进行盲估计的问题。
This paper considers the problem of blind symbol rate estimation of signals linearly modulated by a sequence of unknown symbols.
在各阵元增益幅度不一致的条件下，提出了一种起伏目标的二维方向角和多普勒频率盲估计的新方法。
A new blind estimate of 2d Angle and Doppler frequency for fluctuating target signals was proposed with sensor gain uncertainties.
本文主要研究无线OFDM系统中的信道估计算法，包括基于导频辅助信道估计算法和信道盲估计算法。
This thesis mainly focuses on the algorithms for channel estimation in the wireless OFDM systems including pilot assisted channel estimation and channel blind estimation.
针对短码实值混沌直扩系统，提出了一种基于主元分析的算法，实现了在低信噪比下对直扩序列的盲估计。
A new method of blind estimation for short-code chaotic spread spectrum sequence is proposed, which is based on principal component analysis (PCA) and has good performance at low SNR condition.
通过在阵列天线多载波ds - CD MA系统下构造统一的信号模型，实现了基于子空间的信道盲估计。
By unified signal model of antenna array Multicarrier DS-CDMA system, the subspace-based blind channel estimation is achieved.
该系统可以在完全未知信号参数的情况下，应用各种盲估计算法进行信号参数估计，以及进行调制方式识别。
The receiver can estimate all the parameters needed for demodulation using blind estimation algorithms and recognize the modulation type using the MC algorithm proposed above.
该系统可以在完全未知信号参数的情况下，应用各种盲估计算法进行信号参数估计，以及进行调制方式识别。
The receiver can estimate all the parameters needed for demodulation using blind estimation algorithms and recognize the modulation type using the MC algorithm proposed above.
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