This paper investigates blind multiuser detection for asynchronous DS-CDMA in frequency selective Rayleigh fading channel.
该文研究了频率选择性瑞利衰落信道中的异步ds - CD MA系统盲多用户检测。
The blind detection, parameters estimation and recovery of spreading sequences are the main contents of DS communication counter.
直扩通信对抗包括直扩信号的盲检测、参数估计和扩频码序列恢复等内容。
Unit board detection: fast testing the problems of the blind, darken, all red on the unit board.
单元板检测：快速检测出单元板是否存在瞎点、暗亮，全红等问题。
In direct sequence code division multiple access (DS-CDMA) communications, blind signal detection and interference cancellation are the important methods to increase system capacities.
在直扩码分多址(DS - CDMA)通信中，盲信号检测及干扰抑制技术是增加系统容量的重要手段。
A blind multiuser detection (MUD) method based on a new desired user 'signature waveform estimation method in antenna array CDMA systems is proposed.
针对天线阵c DMA系统，提出了一种基于新的待检用户信号波形估计的盲多用户检测方法。
A robust blind watermark detection technique is proposed.
提出一种稳健的盲水印检测技术。
An embedding and blind detection scheme for binary watermarking based on image feature is presented in this paper.
提出了一种基于图像特征的二值水印嵌入和盲检测算法。
To improve the detection performance of passive sonar, present dissertation addresses the blind separation of underwater acoustic signals.
基于提高被动声纳的检测能力，对水声信号的盲源分离技术进行了探索性研究。
The watermark does not need origin image so that can implement blind watermark detection.
水印的提取不需要原始图像的参与，实现了盲水印检测。
It is a true blind detection algorithm in that it needs no knowledge of channel fading information as well as time domain and frequency domain spread spectrum codes.
该算法无需时域扩频码、频域扩频码和信道衰落信息，是一种真正意义上的盲的检测算法。
This technique is based on the suboptimal subspace blind minimum mean square error (MMSE) algorithm of multiuser detection.
该技术基于次优化子空间盲最小均方误差（MMSE）多用户检测算法。
In DS CDMA channels with multipath and multiple access interference, this paper estimates blindly the user channel with extended space time channel model to process the blind MMSE detection.
在多径多址干扰DS CDMA环境中，本文根据空时信号模型，用扩展的盲方法估计用户信道，从而进行盲mmse检测。
This watermarking detection has not reference to the original image or watermarking image, and it realizes effectively the blind detection of original watermarking.
该水印检测算法没有参考原始图像或原始水印图像，有效实现了原始水印的盲检测。
In watermark detection, the optimum detector is used to implement the blind detection.
在水印的检测方面，最优检测器实现水印的盲检测。
Goldens also work as guide dogs for the blind, as narcotics detection dogs, as tracking dogs, appear in commercials and advertisements, and are one of the preferred breeds of veterinarians.
金毛也可作为导盲犬、缉毒犬、警用跟踪犬、广告或商业宣传中的形象犬、甚至兽医也把金毛作为首选之一。
In view of the problem that the pictures on commodities packaging may have distortion in watermark detection process, studies are carried out and a new blind digital watermark algorithm is proposed.
针对商品包装图像在水印检测过程中图像会发生变形的问题展开研究，提出一种基于非均值量化系数特征不变的盲数字水印方案。
For instance: some algorithm is not blind detection or robust character is insufficient.
如：检测不是盲水印，健壮性不强等。
The blind parallel factor (PARAFAC) signal detection algorithm for the polarization sensitive array is proposed.
提出了极化敏感均匀圆阵中平行因子信号检测算法。
At last, by constrained minimum kurtosis rule, we build a blind multiuser detection based on higher order cumulants.
最后利用最小峰度准则，提出了基于高阶累积量的盲多用户检测。
Both methods could perform blind detection of LFM signals.
两种方法均可实现线性调频信号的盲检测。
To implement image retouching blind detection, a blind identification algorithm for image was proposed.
为了对润饰的图像实施盲检测，提出了一种图像盲鉴别算法。
Blind multiuser detection technology can detect the exptected user with only needing the spreading codes and without train sequences and without information of users.
然而频繁的发送训练序列严重制约了多用户检测技术的实时性和实用性；
The paper gives a novel blind detection algorithm called matching detection based on statistical characteristics.
同时给出一种基于随机统计特征的匹配检测算法。
This paper proposed a method about blind detection of digital forgery image based on the distribution of noise.
提出了一种基于噪声分布规律的伪造图像盲检测方法。
Traditional blind additive ss (spread spectrum) watermarking systems have such features: high robustness, low detection value and small capacity.
传统盲加性扩频水印系统具有鲁棒性高、检测值低、容量小的特点。
Solar blind UV detection has unique advantages because of a weak background interference, reliability and convenience.
日盲紫外探测因为背景干扰微弱、可靠方便而具有独特的优势。
The statistical detection principle is used to achieve the blind extraction of the discriminating watermark and the blind detection of the Confirmable watermark.
在水印的提取与检测阶段，本文应用了统计学假设原理，分别实现了对识别水印的盲提取和确认水印的盲检测。
In blind watermark detection process, we also extract the feature point from the normalized image, then extract the watermark.
在进行水印盲检测时，首先对含水印图象进行归一化处理并提取特征点，然后进行水印提取。
It is a blind detection watermark since we detect watermark by position key and chaos sequence key without original image.
水印的相关检测只需要知道位置密钥和混沌序列密钥，不需要原始图像的参与，因而是盲检测水印方法。
Unit board detection: fast testing the problems of the blind, darken, all red on the unit board.
快速检测出单元板是否存在瞎点、暗亮，全红等问题。
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