相位编码

其次研究了使得多载波相位编码脉冲信号具有较低PMEPR的两个基本设计：相同序列（IS）设计和类chirp信号连续循环移位（COCS）设计。

Secondly , we research the two designs of multi-carrier phase code pulses with low PMEPR : identical sequences ( IS ) and consecutive ordered cyclic shifts ( COCS ) of an ideal chirp-like sequence ( CLS ) .

本文主要研究了多载波相位编码（MCPC）脉冲信号，以及具有低峰值-平均包络功率比（PMEPR）的多载波脉冲串的设计。

This thesis mainly discusses the multi-carrier phase code ( MCPC ) pulses signal , and the design of pulses trains with low peak-mean envelop power ratio ( PMEPR ) .

基于SONG相关的相位编码联合变换相关识别

Phase-encoded Joint Transform Correlation Pattern Recognition Based on SONG Correlation

脉冲压缩；线性调频信号；相位编码信号；目标回波信号；ADS；

Pulse compression ; Linear frequency modulated signal ; Phase encoding signal ; Echo signal ; ADS ;

SENSE技术，通过增加k空间中采样的步距，即减少相位编码的采样步数，使成像速度加快。

SENSE procedure operates by increasing the pace when sampling is performed in k-space , which proves a speedup by reducing the number of encoding steps .

基于Keystone变换的相位编码信号长时间积累方法

Phase-Coded Pulse Train Long-Term Integration Method Based on Keystone Transform

讨论了用于声表面波抽头延迟线相位编码加权的M序列、Gold码特性，并指出了其寻找方法。

The characteristics of M sequence Gold code for the phase encode weighting of SAW withdrawal delay line are discussed , and its finding method is pointed out .

随机与同步频谱相位编码OCDMA系统的性能比较

Performance Comparison of Random and Synchronous Spectral Phase Encoding OCDMA Systems

一种PSK信号相位编码调制规律分析方法

A New Approach to Analyze the Modulation Rules of PSK Signals

频谱相位编码OCDMA系统中多址干扰的统计分析

Statistical Analysis of MAI in Spectral Phase Encoding OCDMA System

针对光谱相位编码光码分多址系统（OCDMA）的信息侦听技术进行了研究。

The information eavesdropping techniques of spectral phase-coded OCDMA system were investigated .

频谱相位编码OCDMA系统的误码特性研究

Bit Error Rate of Spectral Phase Encoding OCDMA Systems

本文对频谱相位编码（spectralphaseencoding）OCDMA系统中的多址干扰（MAI）进行统计分析，作为以后进一步研究工作的理论基础。

This paper analyzes statistical characteristics of multi-access interferences ( MAI ) in spectral phase encoding optical code-division multiple access ( SPE-OCDMA ) system .

它将SF信号的矩形子脉冲替换为相位编码子脉冲串，通过脉内相位和脉间频率两次调制，获得了更大的频率步进量。

By combining intra-pulse phase and inter-pulse frequency modulations , PCSF enabled larger frequency step sizes than SF .

相位编码扩谱OCDMA系统性能分析

Performance Analysis on Spectral Encoded Spreading OCDMA System

基于单脉冲相关积累的PSK信号相位编码调制规律分析

The Analysis of PSK Modulation Rules Based on the Coherent Integration of Single Pulse

MRI相位编码速度标识技术定量检测儿童二尖瓣反流：与超声心动图对比两种标准筛查儿童超重和肥胖的比较

Velocity-encoded cine magnetic resonance imaging for quantification of mitral regurgitation in children : compared with echocardiography Comparison of detection rate of overweight and obesity in children by two different criteria

在差分法基础上提出了一种改进的差分相位编码量子密钥分发（QKD）方案。

We propose and demonstrate an improved differential phase shift key distribution scheme .

QPSK时域相干相位编码的OCDM新技术

A new OCDM technology of QPSK coherent phase encoding in time domain

研究了相位编码信号（MPSK）的载频盲估计算法。

The blind carrier frequency estimation of multi-phase shift keying ( MPSK ) signals was discussed .

软件包括常规脉冲、线性调频脉冲、相位编码等雷达参数的测量、分析和PRI分选等主要模块。

Software includes the measurement of conventional pulse , LFM pulse , phase encoding parameters and PRI de-interleaving .

描述一种被称为SZ相位编码的解距离模糊方法在脉冲多普勒气象雷达中的应用。

A method of phase code named SZ code to mitigate range ambiguity applied on a pulse Doppler weather radar is introduced .

相位编码扩谱光码分多址（OCDMA）通信系统是近年来OCDMA研究的热点之一。

Phase encode spreading optical code division multiplex access ( OCDMA ) communication system is one of the research focuses in recent years .

基于相干光的相位编码OCDMA技术依靠光信号的相位变化，利用伪随机序列来编解码。

Based on coherent optical phase encoding OCDMA techniques rely on phase changes optical signals , using pseudo-random sequence for encoding and decoding .

针对相位编码雷达距离旁瓣较高的问题，本文提出了FFTIFFT法去除大功率信号来抑制距离旁瓣。

To solve the problem of higher range sidelobe of phase-coded radar , the method of removing big power signals with FFT_IFFT is presented in this paper .

传统的相位编码磁共振谱成像（MRSI）采集数据需要很长的时间，使得MRSI在临床上的应用受阻。

Using a conventional phase-encoding MRSI , the data acquisition is very time consuming and thus prohibitive in clinical settings .

系统采用双不等臂M-Z干涉仪相位编码方式，工作波长为1550nm。

Here two unequal M-Z interferometers were used for phase-coding scheme . The wavelength of laser is at 1550 nm .

在频谱相位编码光码分多址系统中，多址干扰（MAI）的包络特性将直接影响系统误码率公式的推导。

In a spectral phase encoding optical code division multiple access ( SPE OCDMA ) system , the envelope behavior of multi access interference ( MAI ) directly affects the bit error rate of the system .

引入多载波相位编码（MCPC）信号及其调幅形式到MIMO雷达中，并给出了一种快速的脉压方法。2、正交噪声信号设计。

In addition , multi-carrier phase coded-amplitude modulation signal is suggested for MIMO radar and corresponding fast pulse compression approach is also presented . 2 Orthogonal noise waveforms design .

根据文献对UWB雷达目标冲击响应的数学近似描述，在目标散射中心分布设定的条件下，研究了线性调频、相位编码和冲击脉冲三类常用超宽带雷达信号的目标回波建模。

Then , according to the mathmatical description to UWB impulse response in literatures , three kinds of UWB signal modeling are studied , such as LFM 、 impulse 、 carrier-free coded waveforms , supposing the target scattering center distribution is given .