1) delay multiplication
延迟相乘
1.
Based on the typical characteristic that the signal transmitted in each hop by a correlated frequency hopping spread spectrum communication system is a frequency-fixed sine wave,the paper looks into the hop-duration based invariability of the correlated frequency hopping spread spectrum signals after delay multiplication low-pass processing.
从相关跳频扩谱系统在每一跳中发送频率恒定的正弦波这一典型特征出发,对相关跳频扩谱信号在经过延迟相乘低通处理后所具有的基于跳驻留时间的恒值特性进行了研究。
2.
The DS-SS/(Binary Phase Shift Keyed,BPSK) signal detection approach with delay multiplication multi-correlation is proposed in this paper.
提出一种基于过采样的直接序列扩谱(Direct-Sequence Spread Spectrum,DS-SS)/二进制相移键控(Binary Phase Shift Keyed,BPSK)信号延迟相乘多重相关检测方法,并推导了延迟相乘相关原理,分析了基于过采样的延迟相乘相关方法对输出信噪比(Signal to Noise Ratio,SNR)的影响。
2) chip-delay-multiply
Chip延迟相乘
1.
The paper proposes to estimate the spread spectrum sequence of the direct sequence spread spectral(DSSS) signals by chip-delay-multiply and correlation matrix Analysis.
提出通过Chip延迟相乘与相关矩分析的方法实现对直扩信号扩频序列的估计,理论分析与计算机仿真显示该方法不但能实现对直扩信号扩频序列的估计,而且能提供序列的同步信息,并能适应对直扩信号检测的低信噪比要求。
3) phase delay
相位延迟
1.
This paper explains some problems encountered in the practical measurement using Virtual Instruments developed by LabVIEW,such as phase delay,noise,multitasking and ex-ecution,continuous analog output &input and so on.
对利用LabVIEW软件开发虚拟仪器进行实际测量过程中可能遇到的相位延迟、噪声、多任务并行机制以及模拟信号的输出与连续采集等问题,提出了一些相应的处理方法,并对在开发和使用这类仪器及其测试系统过程中应注意的事项发表了作者自己的几点见解。
2.
The influence of carrier phase delay on demodulation output is corrected.
该系统采用FPGA实现数据的高速采集和逻辑控制,用DSP实现传感信号的全数字解调,分析了载波相位延迟对解调输出的影响并采取了纠正措施。
4) phase retardation
相位延迟
1.
The simple method research for measuring the phase retardation of wave-plates;
波片相位延迟测量的简捷方法研究
2.
Two-dimensional measurement for optical phase retardation;
光相位延迟的二维测量及系统设计
5) delayed demixing
延迟分相
6) phase lag
相位延迟
1.
Normal acceleration is provided by aerodynamic force,which is restricted by flight height and velocity;Orbit-pulse-control is very different in that it provides normal acceleration without delay,and response time is reduced by one order of magnitude;Attitude-pulse-control behaves 180o phase lag at natural frequency of the missile body,however,the phrase lag of o.
研究表明:姿态脉冲控制与气动控制类似,改变弹道的过载主要是由气动力产生的,受高度和速度的限制;轨道脉冲控制与气动控制有本质不同,直接产生过载,响应时间比气动控制至少小一个量级;姿态脉冲控制时在弹体频率处有180°的相位延迟,轨道脉冲控制有较小的相位延迟。
补充资料：交叉相乘
通常的做法是先求8与12的最小公倍数,然后通分,即 。 。 。 这时,两个分数的分母互质,公分母就是两个分数分母的积。即 。 显然,只要看5 11和7 8的大小就行了。即分数的大小取决于分子的大小。 。 以上过程可以加以简化。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条