新正

OFDM-DS-CDMA is a new concept that applies the orthogonal multicarrier technique to direct sequence CDMA systems.

正交频分多路—直接序列—码分多址(OFDM-DS-CDMA)是新近提出的一种将OFDM与CDMA相结合的新技术。

No additional data for frequency tracking are need, but higher estimation accuracy and low computational complexity can be obtained. Finally, a kind of optimizing joint algorithm for symbol timing, frequency synchronization and channel estimation is proposed. The false alarm probability and miss detect probability of the symbol timing are derived. We proved that the time－frequency offset domain random sequence sliding in the frequency offset direction is orthogonal with the original random sequence, and proposed a new integer frequency offset estimation algorithm. The coarse estimation methods for fractional frequency offset both in AWGN and multipath channels are proposed too.

最后，提出了一种优化的符号同步、频偏估计和信道估计的联合算法，推导了符号同步方法的虚警概率和漏检概率，给出了随机序列在时间－频率偏移域沿频率偏移方向滑动后与原序列近似正交的证明，提出了一种新的在时间－频率偏移域沿频率偏移方向进行滑动相关估计整数频偏的方法，提出了在AWGN信道和多径信道下进行小数频偏粗估计的方法，给出了小数频偏细估计的ML估计结果和利用频域PN序列取值特性的简洁的信道估计结果。

A new algorithm for decomposition of mixed pixels based on orthogonal bases of data space is proposed in this paper.

本文提出一种新的基于数据空间正交基的多通道遥感图像混合像元分解算法。

Based on the analysis of conventional phase difference detection method,a new algorithm of phase difference detection is presented according to Fourier series decomposition method and the characteristic that inner product of two orthogonal vectors in a linear space is zero.

在分析现有相位差检测算法的基础上，应用Fourier级数分解方法与线性空间中正交向量内积为零的特性，推导出了一种新的相位差检测算法。

Firstly,puts both a reference image and a target image to an orthogonal color space,computes their color distributions.Then imposes color characteristics of reference image on target image to generate novel image.

先将图像变换到正交的色彩空间，然后根据图像的色彩信息统计值，将参考图像的色彩迁移至目标图像中，使生成的新图像具有参考图像的整体色彩特征。

This paper presents in detail principal theory used to solve linear unbiased least variance estimation problem using Givens-Gentleman orthogonal transformation without square root computation and applies the theory to three stage-multiarc estimation.

本文详细介绍了利用不求平方根的Givens-Gentleman正交变换解线性无偏最小方差估计问题的基本原理以及这种方法在卫星激光测距三级复弧估计技术中的具体应用，给出了计算估值协方差的一组新的公式。

A new time and frequency synchronization method based on frequency domain correlation for an Orthogonal Frequency Division Multiplexing system is presented.

摘要该文根据频域相关的原理，提出了一种新的用于无线移动信道下的正交频分复用系统的时频同步算法。

A new orthogonal system of generalized Legendre rational functions is introduced.

介绍了一类新的广义勒让德有理正交函数系。

Multiwavelet is a new development in the wavelet theory and it can offer simultaneously orthogonality, symmetry, and short support.

多小波是对小波理论的一个新发展，它可以同时满足正交性、对称性、短支撑等良好的特性要求。

This thesis proposes a new and fast adaptive ESPRIT algorithm using orthonormal projection approximation subspace tracking technique.

本论文提出一种新的使用正交投影近似子空间追踪技术之快速适应性ESPRIT方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。