2) zhengdiɑo fɑndiɑo
正调 反调
3) quadrature demodulation
正交解调
1.
Errors analysis and clibration of subsampling digital quadrature demodulation;
基于欠采样数字正交解调的误差分析及校正
2.
A method for compensation of quadrature demodulation of synthetic aperture radar;
一种合成孔径雷达正交解调误差校正方法
3.
A novel method for the measurement of PWEIS by using quadrature demodulation was presented and the measurement system was constructed based on the anal.
为此分析了人体组织电阻抗测量的特点,提出了基于正交解调的脉搏波电阻抗谱测量方法,并构建了人体电阻抗谱及脉搏波阻抗谱实验测量系统。
4) up-regulation
正向调节
1.
Immunological up-regulation of cyclophosphamide-treated mice by turtle blood extract;
鳖血提取物对小鼠免疫功能正向调节作用的研究
5) sine FM
正弦调频
1.
Performance research on anti-noise FM jamming of pseudo-random code phase modulation and sine FM combined fuze
伪码调相与正弦调频复合引信抗噪声调频干扰性能研究
2.
The purpose of this paper is to research the anti-noise AM spot jamming performance of pseudo-random binary code phase modulation and sine FM(PRBC-SFM) combined fuze based on the criterion of signal to jamming ratio(SJR) gain.
以信干比增益作为衡量标准来研究伪码调相与正弦调频(PRBC-SFM)复合引信抗瞄准式噪声调幅干扰性能。
3.
The spectral correlation function(SCF) of the reconnaissance signal combined sine FM and interpulse pseudo-random code PM was deduced.
推导了正弦调频和脉间伪码调相复合体制信号的谱相关函数(SCF),基于谱相关特征给出了对该复合体制侦察信号的自动识别算法。
6) Sinusoid frequency modulation
正弦调频
1.
,sinusoid frequency modulation and linear frequency modulation signals,the simulation result shows that the characteristic of frequency modulated can be extracted effectively in SNR=5dB.
研究了FM-AM转换时频分析的理论及其实现方法,利用高斯滤波器设计了调频信号的调制特征分析滤波器组,并以正弦调频和线性调频两类调频信号为例进行了数字解调分析,仿真结果表明,在信噪比为5dB时,利用FM-AM转换时频分析技术,可以有效提取调频信号的特征信息。
2.
As example,the digital demodulation is done to two special signals as example,sinusoid frequency modulation and linear modulation frequency signals.
研究了FM-AM转换时频分析的理论及其实现方法,利用高斯滤波器设计了调频信号的调制特征分析滤波器组,并以正弦调频和线性调频两类调频信号为例,进行了数字解调分析。
补充资料：调正
1.改变原有情况﹐使之适合标准。
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