该文基于完备序列和正交序列集，构造出一类相互正交的零相关区序列集。
Based on perfect sequences and orthogonal sequence sets, a new class of mutually orthogonal sets of zero correlation zone sequences is presented.
多相正交序列的自相关特性非常理想，但在低相数时，互相关特性不够理想。
The properties of auto-correlation for polyphase orthogonal sequences are very ideal, but its cross-correlation properties are not good when the phase number is low.
提出采用多相正交序列的移位序列作为扩频序列的通信方式，并给出接收端序列同步的实现方法。
The communication mode of using shift-sequences of multiphase orthogonal sequences is brought up and the method for synchronization of sequence in receiver is presented.
完成了基于FPGA平台的多频恒流激励源和数字化正交序列解调模块的设计、构建与实验验证。
Design, construction and verification test is made to complete a multi-frequency excitation source based on FPGA and to complete a digital quadrature demodulator.
提出自结合方法，导出波传播的限定条件，在找到相应的正交序列后，完全得到弹性波导系统中解析形式的频散方程、群速度方程和稳态响应。
After finding the orthogonal sets corresponding to the guided-wave restriction condition, the analytic dispersive equation, group velocity equation and steady response are obtained simultaneously.
本文给出了直接序列扩频信号正交分路周期相关检测算法的性能分析。
The performance analysis of quadrature correlation detection algorithm for DS-SS signal is presented.
提出了一种利用中频正交双通道测量雷达发射机射频脉冲序列起伏的新的测量系统，并对此系统进行了理论分析。
This paper introduces a new system for measuring the fluctuation of radar RF pulse series by using IF quadrature dual channel, and gives theoretic analysis of this system.
本文证明了时间域内的平稳相关序列经离散傅里叶变换之后，听得到的是频域内的正交随机序列。
This paper proved that a frequency stochastic sequence obtained from a stationarily correlated time series by using discrete Fourier transform is orthogonal.
基于扩频的音频隐藏算法一般都采用阈值相关法进行检测，但感知整形过程往往会破坏伪随机序列的正交性。
Audio information hiding algorithm based on spread spectrum is generally detected by correlation threshold but the orthogonal of pseudorandom sequence is always destroyed by perception reshaping.
在数字图像水印、图像加密等领域，经常需要一个与图像正交的伪随机序列。
In digital image watermarking and image encryption, researchers often require a pseudo random sequence which is statistically orthogonal to an image.
提出了一种基于分割传输序列(PTS)改善正交频分复用信号峰值平均功率比(PAPR)的优化算法。
An optimal algorithm based on partial transmit sequences (PTS) for reducing the peak to average power ratio (PAPR) of orthogonal frequency division multiplexing signal is presented.
部分传输序列(PTS)是一种复杂度较高的减小正交频分复用(OFDM)系统峰均功率比(PAPR)的方法。
Partial transmit sequences (PTS) is a method with high complexity to reduce the Peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) system.
设计强跟踪滤波的思想是：使得残差序列在每一步相互正交，提取残差序列中所有有用的信息，用作对现时刻系统状态的估计。
The idea of the filter is to make discrepancy orthogonal at each step and get useful information from the discrepancy series as current state estimation.
根据最优化训练序列的设计方法分别讨论了两种最优化训练序列的导频格式：对角正交导频和相移正交导频，分析了在两种不同导频格式下的信道估计算法。
The channel estimation algorithm based on training-sequence method firstly introduces the definition of the training sequence and discusses the optimum training-sequence in MIMO-OFDM system.
利用正交多项式序列的正交性及微分算子矩阵，论述了时变非线性分布参数系统参数估计的正交多项式法。
New method of parameter estimation for time varying non linear distributed systems is proposed in term of orthogonality of orthogonal polynomial and differential operation matrix.
目前，一种普遍的解决方法是将空时码与正交频分复用（OFDM）相结合，但需要假定信道变化缓慢，从而有足够的时间通过发送训练序列来进行信道估计。
Now, a general solution is that combining STC with OFDM, but it is supposed that the channel changes slowly, so there is enough time to transmit the training sequence for channel estimation.
正交频分复用和直接序列扩频技术是解决该问题的有效手段。
The orthogonal frequency division and the direct sequence spread spectrum technology are effective methods.
本文采用自然正交函数分解法对我国南方地区的降水气候序列与夏季（5～8月）逐日降水序列进行时空特征分析和对应天气形势分析。
In this paper the climatology of the precipitation, the daily rainfall series of months 5-8 and the correlative weather systems are analysed.
然后重点研究LS估计下的最优训练序列设计方法，包括正交训练序列设计和移相正交训练序列设计。
Then basing on the LS estimation, the paper researches the best design methods of the training sequence including the orthogonal training and shift orthogonal training sequences.
以均值生成函数和双评分准则为基础，建立了正交筛选预测模型，模拟预测气温和降水序列的自然变化规律。
This paper analyzes the calculation method of the rainfall forecasting, error ereates the evaluation standard function and builds up the evaluation model of the rainfall forecasting method.
如果扩频序列采用正交性能好的伪随机码，系统的性能可以优于其他系统；
The dissertation use theories analysis , computer simulation methods with hardware to analyze system performance , data-mapping method and effect of PN code.
如果扩频序列采用正交性能好的伪随机码，系统的性能可以优于其他系统；
The dissertation use theories analysis , computer simulation methods with hardware to analyze system performance , data-mapping method and effect of PN code.
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